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- November 11, 2005
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- Year, Model & Trim Level
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Here is a link to a list of 2, and 3 digit trouble codes, and troubleshooting information: Ford OBD/OBD2 Codes – TroubleCodes.net
Here is a list of EEC-IV codes:
2 Digit Codes
11
System OK
12
Idle Speed Control motor or Air Bypass not controlling idle properly (generally idle too low) - ISC
13
(O)
ISC did not respond properly (extends to touch throttle then retracts for KOEO) - ISC
(R)
Idle Speed Control motor or Air Bypass not controlling idle properly (generally idle too high)
(M)
ISC sticking, open ITS circuit or TP sticking
14
Ignition pickup (PIP) was erratic - Ignition Systems
E4OD Transmission diesel RPM sensor - Diesel RPM sensor
15
(O)
No Keep Alive Memory power to PCM pin 1 or bad PCM (Memory Test Failure)
(M)
KAM (pin 1) was interrupted (was battery disconnected ?)
16
1.9L & 2.5L - Throttle stop set too high - IDLE or Idle Set Procedures
2.3L - RPM's too low - IDLE
(O)
Electronic ignition - IDM circuit fault - Ignition Systems
17
1.9L & 2.5L - Throttle stop set too low - IDLE
18
(R)
Check base timing & advance function - Timing Tests
(M)
Ignition TACH signal erratic - Ignition Systems
Spark Angle Word (SAW) circuit failure (1.9L SFI)
19
(O)
No Vehicle Power (pins 37 + 57) or bad PCM VPWR Diagnosis
(R)
Erratic idle during test (reset throttle & retest) - Idle Set Procedures
Electronic ignition Cylinder ID sensor/circuit problem - Ignition Systems
21
Engine Coolant Temperature (ECT) sensor out of range - ECT
22
MAP (vacuum) or BARO signal out of range - MAP
23
Throttle sensor out of range or throttle set too high - TPS
24
Intake Air Temperature (IAT) or Vane Air Temperature (VAT) sensor out of range - IAT VAT
25
Knock sensor not tested (ignore if not pinging) - KS
26
Mass Air Flow (MAF) or Vane Air Flow (VAF) out of range - MAF VAF
Transmission Oil Temperature (TOT) sensor out of range, Transmissions
27
Vehicle Speed Sensor problem - VSS
28
Vane Air Temperature (VAT) sensor out of range - VAT
2.3L w/Electronic Ignition - Cyl ID, IDM low or right coil pack failure - Ignition Systems
29
Vehicle Speed Sensor problem - VSS
31
(O,R,M)
EVP - EVP signal is/was out of range - EVP
(O,R,M)
EVR - EVP signal is/was low - EVR
(O,R,M)
PFE - PFE signal is/was low - PFE
32
(R)
EVP - EGR not responding properly during test - EVP
(O,R,M)
EVR - EVP signal is/was low - EVR
(R,M)
PFE - PFE shows low pressure, EGR not seating or memory, not seating intermittently - PFE
33
(O,M)
ALL - EGR did not open/ respond during test or if memory code, did not open intermittently - EVP EVR PFE
34
(R)
EVP - EGR did not respond properly during test - EVP
(O,R,M)
EVR - EVP sensor is/was high - EVR
(O,R,M)
PFE - PFE sensor is/was out of range - PFE
35
(R)
EVP - Engine RPM's too low to test EGR system - EVP
(O,R,M)
EVR - EVP sensor signal is/was high - EVR
(O,R,M)
PFE - PFE sensor signal is/was high - PFE
38
Idle Tracking Switch signal was intermittent - ISC
39
Transmission Torque Converter clutch not engaging - Transmissions
41
(R)
System lean - Fuel control
(M)
System was lean for 15 seconds or more (no HO2S switching) - Fuel control
42
(R)
System rich - Fuel control
(M)
System was rich for 15 seconds or more (no HO2S switching) - Fuel control
43
(R)
HO2S sensor not reading (run at 2000 rpm's for 2 minutes and retest - check for HO2S switching)
(M)
Was lean at WOT for 3 seconds or more - Fuel control
44
AIR system inoperative - Air Injection
45
AIR not Diverting (AIRD) - Air Injection
Electronic Ignition - coil primary circuit failure - Ignition Systems
46
AIR Bypass (AIRB) not working - Air Injection
Electronic Ignition - primary circuit failure coil 2 - Ignition Systems
47
Low flow unmetered air (check for small vacuum leaks, injector o'rings, gaskets etc )
E4OD transmission 4x4 switch/circuit problem - Transmissions
48
High flow unmetered air (check for large vacuum leak, inlet hoses etc. )
Electronic Ignition - coil primary circuit failure - Ignition Systems
49
Electronic Ignition - spout signal circuit problem - Ignition Systems
Transmission 1/2 shift problem - Transmissions
51
Engine Coolant Temperature (ECT) sensor signal is/was too high - ECT
52
Power Steering Pressure Switch/circuit open - PSP
(R)
Did you turn wheel during test ?
53
Throttle Position sensor too high - TPS
54
Intake Air Temperature (IAT) or Vane Air Temperature (VAT) signal high - IAT VAT
55
No or low (under 7.5 V) Key Power to PCM pin 5
56
Vane Air Flow (VAF) or Mass Air Flow (MAF) sensor high - VAF MAF
Transmission Oil Temperature sensor too high - Transmissions
57
Intermittent in Park/Neutral/ Switch or Neutral Pressure switch circuit - PNP or Transmissions
58
Idle Tracking Switch (ITS) signal problem ISC
Vane Air Temperature (VAT) sensor out of range or open - VAT
59
AXOD 4/3 circuit fault - Transmissions
3.0L SHO - Low speed fuel pump circuit problem - Power / Fuel Pump Circuits
Transmission 2/3 shift problem - Transmissions
61
Engine Coolant Temperature (ECT) sensor is or was too low - ECT
62
AXOD (KOEO only) 3/2 circuit short to ground - Transmissions
AXOD (KOEO AND KOER) 4/3 circuit failure - Transmissions
E4OD excessive converter clutch slippage - Transmissions
63
Throttle Position Sensor (TPS) signal too low TPS
64
Intake Air Temperature (IAT) or Vane Air Temperature (VAT) signal low or grounded - IAT VAT
65
Check intermittent HO2S (signal or ground) - Fuel Control
(R)
E4OD truck - cycle OD cancel switch after engine ID is received - Transmissions
1984 3.8L ONLY - O, M Battery voltage high (check for electrical system overcharging)
66
Vane Air Flow (VAF) or Mass Air Flow (MAF) signal low - VAF MAF
Transmission Oil Temperature (TOT) signal low (possibly grounded) - Transmissions
67
Park/Neutral circuit fault - PNP
Transmission Manual Lever Position (MLP) sensor circuit - Transmissions
(M)
Intermittent Park Neutral Position (PNP) sensor fault - PNP
68
Idle Tracking Switch (ITS) circuit (possibly grounded) - ISC
Vane Air Temperature (VAT) sensor out of range or grounded - VAT
3.8L AXOD -Transmission Temperature Switch (TTS) open - Transmissions
Electronic Transmission - Transmission Oil Temperature (TOT) sensor was overheated -Transmissions
69
AXOD transmission (O) 3/2 switch closed (possible short circuit) - Transmissions
AXOD (M) 3/2 switch open (poss short to power) - Transmissions
E4OD 3/4 shift problem - Transmissions
70
(M)
3.8L AXOD - Data link to instrument cluster fault Service any other EEC codes, erase memory and retest If code is still present refer to instrument cluster diagnosis manual
71
(M)
1.9L TBI, 2.3L TBI, 2.5L TBI - ITS signal was grounded when throttle should have been opening ITS-ISC ISC motor problem or Idle Tracking Switch (ITS) signal wire shorted to ground - ISC
(M)
1.9L MFI - PCM re-initialized Possible electrical noise, case ground or intermittent VPWR problem - VPWR Diagnosis
(M)
3.8L AXOD - Data link to instrument cluster fault - See code 70
72
(R)
No MAP or MAF change in "goose" test - retest, check for frequency or voltage change - MAP MAF
(M)
1.9L MFI - VPWR circuit to PCM was intermittent - VPWR Diagnosis
(M)
2.3L T/C - PCM re-initialized Possible electrical noise, case ground or intermittent VPWR problem - VPWR Diagnosis
(M)
3.8L AXOD - Message center data link circuit fault - See code 70
73
(O)
Rerun test, if 73 is still output replace TPS
(R)
No Throttle Position Sensor (TPS) change in "goose" test Must get at least 25% throttle rotation - TPS
74
Was brake depressed after engine ID was received ?
Brake On Off (BOO) signal open or short to ground - BOO
75
Brake On Off (BOO) signal shorted to power - BOO
76
Vane Air Flow (VAF) did not respond to "goose" test - VAF
77
System did not receive "goose" test - see TESTS
78
(M)
VPWR circuit to PCM was intermittent or the PCM is bad VPWR Diagnosis
79
A/C is on or pin 10 is shorted to power
81
Boost control solenoid - Solenoids
AIRD solenoid - Solenoids and Air Injection
3.0L SHO - Inlet Air Solenoid - Solenoids
82
2.3L TC - Fan Control wire shorted to ground - A/C and Fan Circuits
AIRB solenoid - Solenoids and Air Injection
3.8L SC - Super Charger Bypass Solenoid - Solenoids
83
High Electro Drive Fan circuit fault - A/C and Fan Circuits
EGR Control solenoid - Solenoids
3.0L SHO - Low Speed Fuel Pump Relay circuit - Power / Fuel Pump Circuits
84
EGR Vacuum Regulator - Solenoids
EGR cutoff solenoid - Solenoids
EGR Vent solenoid - Solenoids
85
2.3L T/C Automatic - 3/4-4/3 Shift solenoid - Transmissions
CANP solenoid (ALL 1989) - Solenoids
(M)
1.9L MFI - System has corrected rich condition - Fuel control
86
2.3L or 2.9L Truck - A4LD 3/4 shift solenoid - Transmissions
(M) 1.9L MFI - System has corrected lean condition - Fuel control
87
(O)
Fuel pump circuit fault (check inertia switch) - Power / Fuel Pump Circuits
Vehicles with 2 BBL carb - Temperature Compensated Accelerator Pump Solenoid - Solenoids (M) intermittent in fuel pump primary circuit - Power / Fuel Pump Circuits NOTE: On some Escorts with automatic seat belts this code is normal IN MEMORY due to the wiring
88
Throttle Kicker Solenoid - Solenoids
Variable Voltage Choke relay circuit fault - VVC
Fan Control circuit fault - A/C and Fan Circuits
A4LD - Converter Clutch Override solenoid - Transmissions
Electronic Ignition - IDM, DPI or spout circuit fault - Ignition Systems
89
A4LD - Converter Clutch Override solenoid - Transmissions
AXOD Torque Converter Control solenoid circuit - Transmissions
Exhaust Heat Control (heat riser) solenoid circuit - Solenoids
91
(R, M) System running lean - Fuel control
Transmission SS 1 circuit/solenoid problem - Transmissions
92
(R)
System running rich - Fuel control
Transmission SS 2 circuit/solenoid problem - Transmissions
93
(O,R)
Throttle linkage binding or bad ISC motor ISC HO2S not reading Fuel control
Transmission TCC circuit/solenoid problem - Transmissions
94
AIR system inoperative - Air Injection
Transmission TCC circuit/solenoid problem - Transmissions
95
(O)
Fuel pump: open, bad ground or always on - Power / Fuel Pump Circuits
(R)
AIR not Diverting (AIRD) - Air Injection
(M)
Possible bad fuel pump ground or open between fuel pump and pin 8 at PCM (Fuel Pump Monitor signal) - Power / Fuel Pump Circuits
96
(O)
Fuel pump monitor circuit shows no power - Power / Fuel Pump Circuits
(R)
AIR Bypass (AIRB) not working - Air Injection
(M)
(Service 87 code first if present) Fuel pump relay or battery power feed was open - Power / Fuel Pump Circuits
97
E4OD OD cancel light circuit failure - Transmissions
98
(R)
Did not pass KOEO yet (Get 11 in KOEO first)
Transmission EPC circuit/solenoid failure - Transmissions
99
(R)
ISC needs to learn (Let idle for 2 minutes, Erase memory and retest)
Transmission EPC circuit/solenoid failure - Transmissions
(R) = Engine Running test (M) = Memory code (O)=Key On Engine Off test
3 Digit codes
111
System checks OK
112
(O,M)
Intake Air Temperature (IAT) sensor is/was low or grounded - IAT
113
(O,M)
IAT sensor is/was high or open - IAT
114
(O,R)
IAT sensor out of range - IAT
116
(O,R)
Engine Coolant (ECT) sensor out of range - ECT
117
(O,M)
ECT sensor is/was low or grounded - ECT
118
(O,M)
ECT sensor is/was high or open - ECT
121
(O,R,M)
Throttle Position (TP) sensor out of range - TPS
122
(O,M)
TP low (possibly grounded or open circuit) - TPS
123
(O,M)
TP is/was high or short to power - TPS
124
(M)
TP voltage was higher than expected - Fuel control
125
(M)
TP voltage was lower than expected - Fuel control
126
(O,R,M)
MAP or BARO sensor out of range - ">MAP
128
(M)
MAP vacuum has not been changing - check vacuum lines - ">MAP
129
(R)
No MAP or Mass Air Flow sensor change during "goose" test - MAP MAF
136
(R)
Oxygen sensor not switching/system lean Left or Front HO2S - Fuel control
137
(R)
Oxygen sensor not switching/system rich Left or Front HO2S - Fuel control
138
(R)
Fault in Cold Start Injector circuit - Fuel control
139
(M)
Oxygen sensor not switching Left or Front HO2S - Fuel control
144
(M)
Oxygen sensor not switching Single, Right or Rear HO2S - Fuel control
157
(R,M)
Mass Air Flow signal is/was low or grounded - MAF
158
(O,R,M)
MAF sensor is/was high or short to power - MAF
159
(O,R)
MAF sensor is/was out of range - MAF
167
(R)
No Throttle Position sensor change in "goose" test (must get at least 25% rotation) - TPS
171
(M)
Oxygen sensor not switching - system was at adaptive limits - Single, Right or Rear HO2S - Fuel control
172
(R,M)
Oxygen sensor not switching - system is or was lean - Single, Right or Rear HO2S - Fuel control
173
(R,M)
Oxygen sensor not switching - system is or was rich - Single, Right or Rear HO2S - Fuel control
174
(M)
Oxygen sensor was slow in switching Single, Right or Rear HO2S - Fuel control
175
(M)
Oxygen sensor not switching - system was at adaptive limits - Left or Front HO2S - Fuel control
176
(M)
Oxygen sensor not switching - system is or was lean Left or Front HO2S - Fuel control
177
(M)
Oxygen sensor not switching - system was rich Left or Front HO2S - Fuel control
178
(M)
Oxygen sensor was slow in switching Left or Front HO2S - Fuel control
179
(M)
Fuel system was rich at part throttle Single, Right or Rear HO2S - Fuel control
181
(M)
Fuel system was lean at part throttle Single, Right or Rear HO2S - Fuel control
182
(M)
Fuel system was rich at idle Single, Right or Rear HO2S - Fuel control
183
(M)
Fuel system was lean at idle Single, Right or Rear HO2S - Fuel control
184
(M)
Mass Air (MAF) output higher than expected - Fuel control
185
(M)
Mass Air (MAF) output lower than expected - Fuel control
186
(M)
Injector pulse width longer than expected or Mass Air Flow (MAF) lower than expected - Fuel control
187
Injector pulse width shorter than expected or Mass Air Flow (MAF) higher than expected - Fuel control
188
(M)
Fuel system was rich at part throttle - Left or Front HO2S - Fuel control
189
(M)
Fuel system was lean at part throttle - Left or Front HO2S - Fuel control
191
(M)
Fuel system was rich at idle - Left or Front HO2S - Fuel control
192
(M)
Fuel system was lean at idle - Left or Front HO2S - Fuel control
193
Failure in Flexible Fuel (FF) sensor circuit - Fuel control
194
(M)
Perform cylinder balance test to check for inoperative injectors
195
(M)
Perform cylinder balance test to check for inoperative injectors
211
(M)
Ignition PIP signal was erratic or missing - Ignition Systems
212
(M)
Ignition TACH signal was erratic (module/wiring) or SPOUT circuit fault - Ignition Systems
213
(R)
Ignition SPOUT or SAW circuit open or shorted - Ignition Systems
214
(M)
Error in Cylinder ID (CID) circuit or signal - Ignition Systems
215
(M)
Primary circuit failure - ignition coil 1 - Ignition Systems
216
(M)
Primary circuit failure - ignition coil 2 - Ignition Systems
217
(M)
Primary circuit failure - ignition coil 3 - Ignition Systems
218
(M)
IDM signal open or high or left coil pack failure - Ignition Systems
219
(M)
SPOUT circuit failure, timing defaulted to 10 degrees - follow code 213 diagnosis
222
(M)
IDM open or high or right coil pack failure - Ignition Systems
223
(M)
Dual Plug (DPI), SPOUT or IDM circuit fault - Ignition Systems
224
(M)
Failure in ignition coil primary circuit - Ignition Systems
225
(R)
Knock sensor not tested (ignore if not pinging) - KS
226
(O)
Ignition Diagnostic Monitor (IDM) signal fault - Ignition Systems
232
(M)
EI primary coil circuit failure - Ignition Systems
238
(M)
EI primary circuit failure - ignition coil 4 - Ignition Systems
311
(R)
AIR system not working - Single, Right or Rear HO2S - Air Injection
312
(R)
AIR not diverting - Air Injection
313
(R)
AIR not bypassing - Air Injection
314
(R)
AIR inoperative, Left or Front HO2S - Air Injection
326
(R,M)
Pressure Feedback EGR shows low pressure EGR not seating or not seating intermittently - PFE
327
(O,R,M)
EGR feedback signal is/was low - EVR or PFE
328
(O,R,M)
EGR Valve Position (EVP) is/was low - EVR
332
(R,M)
EGR did not open/respond during test or if memory code, did not open intermittently - EVR or PFE
334
(O,R,M)
EVP sensor is/was high - EVR
335
(O)
EGR feedback signal is/was out of range - EVR or PFE
336
(O,R,M)
PFE sensor signal is/was was high - ">PFE
337
(O,R,M)
EGR feedback signal is/was was high - EVR
338
(M)
Cooling system did not heat up (check cooling system / thermostat operation)
339
(M)
Cooling system overheated (check cooling system / thermostat operation)
341
(O)
Octane jumper installed (information only code to notify you if it is installed)
411
(R)
Idle speed system not controlling idle properly (generally idle too high) - ISC
412
(R)
Idle speed system not controlling idle properly (generally idle too low) - ISC
452
(M)
Vehicle Speed Sensor (VSS) problem
511
(O)
No power to PCM pin 1 or bad PCM (processor)
512
(M)
Memory power (PCM pin 1) was interrupted - Was battery disconnected ?
513
(O)
Replace processor (PCM) (internal failure)
519
(O)
PSP switch/circuit open - PSP h Pedal Position (CPP) circuit fault - PNP
528
(M)
System shows voltage at pin 10 (is A/C on ?) or pin 30 (PNP, CPP switch) - PNP
529
(M)
Data Communications Link to processor failure Service any EEC codes, erase memory and retest If code is still present refer to instrument cluster diagnosis manual
533
(M)
Data Communications Link to instrument cluster failure - see 529
536
(O,R,M)
Brake On Off open or shorted to ground - BOO
538
(R)
System did not receive "goose" test - TESTS
539
(O)
System shows voltage at PCM pin 10 Is A/C on ?
542
(O,M)
Fuel pump open, bad ground or always on - - Power / Fuel Pump Circuits
543
(O)
Fuel pump monitor circuit shows no power - Power / Fuel Pump Circuits
(M)
(Service 556 code first if present) Fuel pump relay or battery power feed was open - Power / Fuel Pump Circuits
551
Problem in Intake Manifold Runner Control (IMRC) solenoid/circuit - Solenoids
552
(O)
AIRB solenoid/circuit failure - Solenoids
553
(O)
AIRD solenoid/circuit failure - Solenoids
554
(O)
Fuel Press Regulator Control solenoid/circuit fault - Power / Fuel Pump Circuits
556
(O,M)
Fuel pump relay primary circuit fault - Power / Fuel Pump Circuits
557
(O,M)
Low speed pump relay primary circuit fault - Power / Fuel Pump Circuits
558
(O)
EGR vacuum regulator solenoid/circuit failure - EVR or PFE or Solenoids
559
(O)
A/C relay primary circuit fault - A/C and Fan Circuits
563
(O)
High Fan Control (HFC) circuit failure - A/C and Fan Circuits
564
(O)
Fan Control (FC) circuit failure - A/C and Fan Circuits
565
(O)
Canister Purge 1 solenoid/circuit failure - Solenoids
566
(O)
transmission 3/4 shift solenoid/circuit - Transmissions
569
(O)
Canister Purge 2 solenoid/circuit failure - Solenoids
578
(M)
A/C pressure sensor VREF short to ground - A/C and Fan Circuits
579
(M)
ACP sensor did not change with A/C on - A/C and Fan Circuits
581
(M)
Cooling fan current was excessive - A/C and Fan Circuits
582
(O)
Open cooling fan circuit - A/C and Fan Circuits
583
(M)
Fuel pump current was excessive - Power / Fuel Pump Circuits
584
(M)
Open power ground circuit - Power / Fuel Pump Circuits
585
(M)
A/C clutch current was excessive - A/C and Fan Circuits
586
(M)
Open circuit in A/C clutch - A/C and Fan Circuits
587
(O, M)
Communication problem between PCM and Variable Control Relay Module (VCRM) - Power / Fuel Pump Circuits
617
(M)
Transmission shift failure (1/2 shift) - Transmissions
618
(M)
Transmission shift failure (2/3 shift) - Transmissions
619
(M)
Transmission shift failure (3/4 shift) - Transmissions
621
(O)
Solenoid/circuit failure - shift solenoid 1 - Transmissions
622
(O)
Solenoid/circuit failure - shift solenoid 2 - Transmissions
624
(O,M)
Solenoid/circuit failure -Electronic Pressure Control (EPC) current is high - Transmissions
625
(O,M)
Solenoid/circuit failure - Electronic Pressure Control (EPC) current is low - Transmissions
626
(O)
Transmission Coast Clutch (CCS) Solenoid/circuit fault - Transmissions
627
(O)
Torque Converter Clutch circuit fault - Transmissions
628
(M)
Excessive converter clutch slippage - Transmissions
629
(O,M)
Torque Converter Clutch circuit fault - Transmissions
631
(O)
Overdrive Cancel Light circuit problem - Transmissions
632
(R)
E4OD - Transmission Control Switch (TCS) should be cycled once between engine ID and Goose test
633
(O)
4x4L switch should be in 4x2 or 4x4 high for the test
634
(O,M)
Park/Neutral Position (PNP) or Clutch Pedal Position (CPP) circuit fault Electronic shift transmission - Manual Lever Position (MLP) sensor out of range in Park-Transmissions
636
(O,R)
Transmission Oil Temperature (TOT) sensor out of range - Transmissions
637
(O,M)
TOT sensor is/was high or open - Transmissions
638
(O,M)
TOT sensor is/was low or grounded - Transmissions
639
(R,M)
Transmission Speed sensor (TSS) circuit fault - Transmissions
641
(O)
Transmission solenoid/circuit failure Shift Solenoid 3 - Transmissions
643
(O,M)
Torque Converter Clutch (TCC) circuit - Transmissions
645
(M)
Transmission 1st gear failure - Transmissions
646
(M)
Transmission 2nd gear failure - Transmissions
647
(M)
Transmission 3rd gear failure - Transmissions
648
(M)
Transmission 4th gear failure - Transmissions
649
(M)
Transmission EPC system failure - Transmissions
651
(M)
Transmission EPC solenoid/circuit fault - Transmissions
652
(O)
Torque Converter Clutch (TCC) circuit fault - Transmissions
654
(O)
Transmission selector not in PARK - Transmissions
656
(M)
Torque Converter Clutch (TCC) slip - Transmissions
657
(M)
Transmission temperature was excessive - Transmissions
96 & newer vehicles are OBD2 systems
and REQUIRE A SCANNER, unless otherwise stated.
Warning: Please check for manufacturer specific codes and
confirm the trouble code descriptions with an appropriate manual.
Disclaimer: We cannot guarantee the accuracy of all information.
Please confirm the information with an appropriate manual.
This was the more complete list from the second link:
EEC-IV
C—Continuous memory code.
O—Key On, engine Off self test code.
R—Engine running self test code.
MIL
Type
11
System Pass
C/O/R
12
RPM Not Within Self Test Upper Limit
R
13
RPM Not Within Self Test Lower Limit
R
DC Motor Did Not Move
C/O/R
14
Profile Ignition Pickup Circuit Failure
C
Engine RPM Sensor Circuit Fault (Diesel)
C
15
Readout Memory Test Failed
O
Keep Alive Memory Test Failed
C
16
Ignition Diagnostic Module (2.9L, 3.0L & 4.0L)
O
Idle RPM High With ISC Retracted (2.5L)
R
RPM Above Self Test Limit With ISC Off (1986–90 1.9L EFI)
R
RPM Too Low To Perform HO2S Test (Others)
R
17
Idle RPM Low With ISC Retracted (1.9L & 2.5L CFI)
R
RPM Below Self Test Limit With ISC Off (1986–90 1.9L EFI)
R
18
Spark Out (SPOUT) Circuit Open
R
Loss Of Ignition Diagnostic Module Input To PCM/SPOUT Circuit Grounded
C
Spark Angle Word (SAW) Circuit Failure (1.9L SFI)
C/R
19
Failure In PCM Internal Voltage
R
Erratic RPM During Hard Idle Self Test
R
RPM Drop Too Low During ISC Off Test (1.9L EFI)
R
Power Processor Check (2.3L HSC EFI)
O
Cylinder Identification Sensor Input Failure (3.0L SHO)
C
21
Engine Coolant Temperature (ECT) Sensor Out Of Self Test Range
O/R
22
Manifold Absolute Pressure/Barometric Pressure Sensor Out Of Self Test Range
C/O/R
23
Throttle Position Sensor Out Of Self Test Range
C/O/R
Fuel Injector Pump Lever Sensor Input Is Out Of Self Test Range (Diesel)
O/R
24
Intake Air Temperature/Air Charge Temperature Sensor Out Of Self Test Range
O/R
25
Knock Not Sensed During Dynamic Response Test
R
26
Mass Air Flow/Vane Air Flow Sensor Out Of Self Test Range
O/R
Transmission Fluid Temperature Sensor Input Out Of Self Test Range (5.0L, 5.8L, 7.3L & 7.5L Truck)
O/R
27
Vehicle Speed Sensor (2.3L Turbo)
C
28
Loss Of Ignition Diagnostic Module RH Side
C
Vane Air Temperature Sensor Input Out Of Self Test Range (1.9L EFI)
O/R
29
Insufficient Input From Programmable Speedometer/Odometer Module (From 1993)
C
Insufficient Input From Vehicle Speed Sensor (To 1992)
C
31
EGR Valve Position/Pressure Feedback EGR Circuit Below Minimum Voltage
C/O/R
32
EGR Not Controlling (2.3L OHC & 3.8L CFI)
R
EGR Valve Not Seated (1.9L CFI, 2.9L & 3.0L SHO)
C/R
EGR Valve Position/Pressure Feedback EGR Voltage Below Closed Voltage (Others)
C/O/R
33
EGR Not Closing Properly (2.3L OHC & 3.8L CFI)
C/R
Throttle Position Sensor Noisy/Harsh On Line (Diesel)
C
EGR Valve Opening Not Detected (Others)
C/R
34
EGR Valve Opening Not Detected (2.3L OHC & 3.8L CFI)
R
Defective EGR Pressure Transducer Sensor (1.9L CFI, 2.3L HSC EFI & 3.0L)
C/O/R
EGR On/Off Control (2.3L Turbo)
R
EGR Valve Position/Pressure Feedback EGR Voltage Above Closed Limit (Others)
C/O/R
35
RPM Too Low To Perform EGR Test (2.3L OHC & 3.8L CFI)
R
EGR Valve Position/EGR Pressure Feedback EGR Circuit Above Maximum Voltage (Others)
C/O/R
36
System Indicates Lean At Idle
R
37
System Indicates Rich At Idle
R
38
DC Motor Idle Speed Control/Idle Tracking Throttle Position Sensor Open Circuit (2.3L CFI & 2.5L HSC)
C
39
AXOD Converter Bypass Clutch Not Applying Properly
C
41
System Indicates Lean
R
No HO2S Switching Detected
C
42
System Indicates Rich
R
No O2S Switching Detected
C
43
HO2S Lean At Wide Open Throttle (1986–90 1.9L MFI)
C
Throttle Position Sensor Below Idle Sped (Diesel)
C
44
Secondary Air System Inoperative
R
45
Secondary Air Upstream During Self Test
R
Coil 1 Primary Circuit Failure (1990–91 1.9L EFI/SFI, )
C
Distributorless Ignition System Coil Pack 3 Circuit Failure (3.0L SHO 3.8L SC)
C
46
Secondary Air Not Bypassed During Self Test
R
Coil 2 Primary Circuit Failure (1990–91 1.9L MFI/SFI)
C
Distributorless Ignition System Coil Pack 1 Circuit Failure (3.0L SHO 3.8L SC)
C
47
4 X 4 Switch Is Closed
O
Measured Air Flow Low At Base Idle
R
48
Loss Of Ignition Diagnostic Monitor LH Side (2.3L)
C
Measured Air Flow High At Base Idle (1986–90 1.9L EFI)
R
Distributorless Ignition System Coil Pack 2 Circuit Failure (3.0L SHO 3.8L SC)
C
49
Spark Output (SPOUT) Signal Default To 10°. BDTC (3.0L SHO & 3.8L SC)
C
1–2 Shift Error (Others)
C
51
Engine Coolant Temperature Circuit Open
O/C
52
Power Steering Pressure Switch Circuit Open
O
Power Steering Pressure Switch Circuit Did Not Change States
R
53
Throttle Position Sensor Circuit Above Maximum Voltage
C/O
Fuel Injector Pump Lever Sensor Input Is Greater Than Self Test (Diesel)
C/O
54
Intake Air Temperature/Air Charge Temperature Circuit Open
C/O/R
55
Key Power Check
R
56
Transmission Fluid Temperature Circuit Open
C/O
Mass Air Flow/Vane Air Flow Sensor Circuit Above Maximum Voltage
C/O/R
57
Transaxle Neutral Position Switch Circuit Failed Open
C
58
Idle Tracking Switch Circuit Open Or Grounded (CFI)
O/R
Vane Air Temperature Sensor Input Greater Than Self Test Maximum (EFI)
C/O
59
AXOD Neutral Position Switch Circuit Failed Open (3.0L & 3.8L)
C
2–3 Shift Error (Others)
C
Low Speed Fuel Pump Circuit Failure, Battery To PCM (3.0L SHO)
C/O
AXOD 4/3 Pressure Switch Circuit Failed Closed
O
AXOD 4/3 Pressure Switch Circuit Failed Open
C
61
ECT Sensor Circuit Grounded
C/O/R
62
Torque Converter Clutch Error
C
AXOD 4/3 Or 3/2 Pressure Switch Circuit Grounded
O
63
Throttle Position Sensor Circuit Below Minimum Voltage
C/O/R
Fuel Injection Pump Lever Sensor Input Is Less Than Self Test Min. (Diesel)
C/O
64
Intake Air Temperature/Air Charge Temperature Circuit Grounded
C/O/R
65
Transmission Control Switch/Overdrive Cancel Switch Circuit Did Not Change States
R
Fuel Control (2.3L Turbo)
C
66
Mass Air Flow Sensor Circuit Below Minimum Voltage (Except 1.9L MFI & 2.3L Turbo)
C
Vane Air Flow Sensor Input Less Than Self Test Minimum (1.9L MFI & 2.3L Turbo)
O/C
Transmission Fluid Temperature Circuit Grounded (Others)
O/C
67
Park Neutral Position Switch Circuit Open; A/C On (Manual)
O
Manual Lever Position Sensor Out Of Range/A/C On
O/C
Clutch Switch Circuit Failure
C
A/C Input High (2.5L TBI)
O/C
68
Idle Tracking Switch Closed (1.9L, 2.3L, 2.5L & 3.8L CFI)
O/R
Vane Air Temperature Sensor Input Less Than Self Test Minimum (1.9L MFI & 2.3L Turbo)
O/C
Transmission Fluid Temperature Transmission Over Temp (Overheated) (Diesel)
C
69
3–4 Shift Error
C
AXOD Neutral Position Switch Failed Open (3.0L)
C
AXOD 3/2 Pressure Switch Failed Closed (3.8L SFI)
C/O
70
EEC IV Data Transaxle Circuit Failed (3.8L SFI)
C
71
Idle Tracking Switch Closed On Pre-Position (1.9L, 2.3L & 2.5L CFI)
C
Software Re-Initalization Detected (1.9L EFI)
C
Cluster Center Control Circuit Failed (3.8L SFI)
C
72
Insufficient Manifold Absolute Pressure/Mass Air Flow Change During Dynamic Response Test
R
Power Interrupt Software Re-Initalization Detected (1.9L & 2.3L Turbo)
C
Message Center Control Assembly Circuit Failed (3.8L SFI)
C
73
Insufficient Throttle Position Change During Dynamic Response Test
O/R
74
Brake On/Off Circuit Open–Not During Self Test
R/C
75
rake On/Off Circuit Closed/ECA Input Open
R
76
Insufficient Vane Air Flow Sensor Output Change During Dynamic Response Test
R
77
Operator Error Dynamic Response Test
R
78
Re-Initalization Check
R
79
A/C On/Defrost On During Self Test
O
81
Secondary Air Diverter Circuit Failure
O
Turbo Boost (2.3L Turbo)
O
Insufficient IAS Output Voltage Change When Solenoid Is Activated (3.0L SHO)
O
82
Secondary Air Bypass Circuit Failure
O
Integrated Relay Control Module (2.3L Turbo)
O
Supercharger Bypass Circuit Failure (3.8L SC)
O
83
Integrated Relay Control Module (2.3L Turbo & 2.5L)
O
High Electric Drive Fan Circuit Failure (1.9L & 2.5L SFI)
O
EVP/EGRC/EGRV (2.3L OHC & 3.8L CFI)
O
Low Speed Fuel Pump Relay Circuit Open (3.0L SHO)
C/O
Integrated Relay Control Module (3.8L Turbo)
O
High Electric Drive Fan Circuit Failure (3.8L SFI & 3.8L SC)
O
84
EGR Valve Position/Pressure Feedback EGR/EGR Control Circuit Failure
O
85
Adaptive Fuel Lean Limit Reached (1.9L EFI)
C
Shift Solenoid 3/4–4/3 (2.3L Turbo)
O
CANP Circuit Failure (Others)
O
86
Shift Solenoid Circuit Failure (2.9L 3.0L & 4.0L)
O
Adaptive Fuel Rich Limit Reached (1.9L EFI)
C
87
Primary Fuel Pump Circuit Failure
O/C
Integrated Relay Control Module (2.3L Turbo & 2.5L & 3.8L MFI)
O
88
Loss Of Dual Plug Input Control
C
Shift Solenoid 3/4–4/3 (2.3 Turbo)
O
Integrated Relay Control Module (2.5 L HSC & 3.8L EFI)
O
Electric Drive Fan Circuit Failure (2.5L, 3.0L SHO & 3.8L SFI)
O
Throttle Kicker Fault (5.0L)
—
89
Converter Clutch Override Circuit Failure (2.9L, 3.0L & 4.0L)
O
Exhaust Heat Control (3.8L CFI)
O
91
Shift Solenoid 1 Circuit Failure
O
HO2S Circuit Indicates Lean
R
No HO2S Switching Detected
C
92
Shift Solenoid 2 Circuit Failure
O
HO2S Circuit Indicates Rich
R
93
Throttle Position Sensor Input Low At Maximum D.C. Motor Extension (1.9L, 2.3L & 2.5L TBI)
O
Converter Clutch Solenoid Circuit Failure (Others)
O
94
Torque Converter Clutch Solenoid Circuit Failure
O
Secondary Air Injection Inoperative
R
95
Integrated Relay Control Module (2.5L HSC & 3.8L EFI)
C/O
Fuel Pump Circuit Open-PCM To Motor Ground (Others)
C/O
96
Integrated Relay Control Module (2.5L HSC & 3.8L EFI)
C/O
High Speed Fuel Pump Relay Circuit Open (3.0L SHO)
C/O
Fuel Pump Circuit Open-Battery To PCM (Others)
C/O
97
Transmission Control Indicator Lamp Circuit Failure
O
98
Hard Fault Present
R
Electronic Pressure Control Driver Open In PCM (Diesel)
O
99
Electronic Pressure Control Circuit Failure
O/C
Electronic Engine System Has Not Learned To Control Idle
R
111
System Pass
C/O/R
112
Intake Air Temperature/Air Charge Temperature Sensor Circuit Below Minimum Voltage
C/O
113
Intake Air Temperature/Air Charge Temperature Sensor Circuit Above Maximum Voltage
C/O
114
Intake Air Temperature/Air Charge Temperature Higher Or Lower Than Expected
O/R
116
Engine Coolant Temperature Higher Or Lower Than Expected
O/R
117
ECT Sensor Circuit Below Minimum Voltage
C/O
118
ECT Sensor Circuit Above Maximum Voltage
C/O
121
Closed Throttle Voltage Higher Or Lower Than Expected
C/O/R
121
Indicates Throttle Position Voltage Inconsistent With Mass Air Flow Sensor
C/O/R
122
Throttle Position Sensor Circuit Below Minimum Voltage
C/O
123
Throttle Position Sensor Circuit Above Maximum Voltage
C/O
124
Throttle Position Sensor Voltage Higher Than Expected
C
125
Throttle Position Sensor Voltage Lower Than Expected
C
126
Manifold Absolute Pressure/Barometric Pressure Sensor Higher Or Lower Than Expected
C/O/R
Cylinder Identification Circuit Failure (3.0L SHO)
C
128
Manifold Absolute Pressure Sensor Vacuum Hose Damaged/Disconnected
C
129
Insufficient Manifold Absolute Pressure/Mass Air Flow Change During Dynamic Response Test KOER
R
136
System Indicates Lean (Bank No. 1)
R
137
System Indicates Rich (Bank No. 2)
R
138
Cold Start Injector Flow Insufficient
R
139
No HO2S Switch Detected
C
141
Flexible Fuel Control
R
144
No HO2S Switch Detected
C
157
Mass Air Flows Sensor Circuit Below Minimum Voltage
C
158
Mass Air Flow Sensor Circuit Above Maximum Voltage
C/O
159
Mass Air Flow Higher Or Lower Than Expected
O/R
167
Insufficient Throttle Position Change During Dynamic Response Test
R
171
Fuel System At Adaptive Limits
C
No HO2S Switching Detected
C
172
HO2S System Indicates Lean
C/R
173
HO2S System Indicates Rich
R
174
HO2S Switching Time Is Slow
C
175
Fuel System At Adaptive Limits (Bank No. 2)
C
176
System Indicates Lean (Bank No. 2)
C
Insufficient TP Change During Dynamic Response Test (4.9L)
R
177
System Indicates Rich (Bank No. 2)
C
178
HO2S Switch Time Is Slow (Bank No. 1)
C
179
Fuel System At Lean Adaptive Limit At Part Throttle, System Rich (1.9L, 2.0L. 2.3L HSC, 2.5L & 3.0L)
C
Fuel System Adaptive Lean Limit Is Reached (4.6L, 4.9L 5.0L, 5.8L, 7.0L & 7.5L)
C
Fuel System At Rich Adaptive Limit (Others)
C
181
Fuel System At Rich Adaptive Limit At Part Throttle, System Lean (1.9L, 2.0L, 2.3L HSC, 2.5L & 3.0L)
C
Fuel System Adaptive Rich Limit Is Reached (4.6L, 4.9L, 5.0L, 5.8L , 7.0L & 7.5L)
C
Fuel System At Lean Adaptive Limit (Others)
C
182
Fuel System At Lean Adaptive Limit At Idle, System Rich (1.9L, 2.3L, 2.5L, 3.0L, 3.8L SC, 4.6L , 7.0L & 7.5L)
C
Fuel System At Lean Adaptive Limit (Others)
C
183
Fuel System At Rich Adaptive Limit At Idle, System Lean (1.9L, 2.3L, 3.0L, 3.8L SC, 4.6L, 7.0L & 7.5L)
C
Fuel System At Rich Adaptive Limit (Others)
C
184
Mass Air Flow Sensor Circuit Voltage Higher Than Expected
C
185
Mass Air Flow Sensor Circuit Voltage Lower Than Expected
C
186
Injector Pulse Width Higher Than Expected (With BARO Sensor)
C
Injector Pulse Width Higher Or Mass Air Flow Lower Than Expected (Less BARO Sensor)
C
187
Injector Pulse Width Lower Than Expected (With BARO Sensor)
C
Injector Pulse Width Lower Or MAF Higher Than Expected (Less BARO Sensor)
C
188
Fuel System At Lean Adaptive Limit
C
189
Fuel System At Rich Adaptive Limit
C
191
Fuel System At Lean Adaptive Limit (Front)
C
192
Fuel System At Rich Adaptive Limit (Front)
193
Flexible Fuel Sensor Circuit Failure
O
211
Profile Ignition Pickup Circuit Failure
C
212
Loss Of Ignition Diagnostic Module Input To PCM/SPOUT Circuit Grounded
C
213
Spark Output (SPOUT) Circuit Open
R
214
Cylinder Identification Circuit Failure
C
215
PCM Detected Coil 1 Primary Circuit Failure (EI)
C
216
PCM Detected Coil 2 Primary Circuit Failure (EI)
C
217
PCM Detected Coil 3 Primary Circuit Failure (EI)
C
218
Loss Of Ignition Diagnostic Module Signal LH Side (Dual Plug EI)
C
219
Spark Timing Error
C
221
Spark Timing Error
C
222
Loss Of Ignition Diagnostic Module Signal RH Side (Dual Plug EI)
C
223
Loss Of Dual Plug Ignition Control (Dual Plug EI)
C
224
PCM Detected Coil 1, 2, 3 Or 4 Primary Circuit Failure (EI)
C
Erratic Ignition Diagnostic Module Input To Processor
C
Loss Of Tack Input To Processor/SPOUT Circuit Grounded (5.8L)
C
225
Knock Not Sensed During Dynamic Response Test KOER
R
226
Ignition Diagnostic Module Signal Not Received (EI)
O
232
PCM Detected Coil 1, 2, 3 Or 4 Primary Circuit Failure (EI)
C
238
PCM Detect Coil 4 Primary Circuit Failure
C
244
Cylinder Identification Sensor Circuit Failure (2.0L)
R
311
AIR System Inoperative/AIR System Inoperative During KOER (Bank No. 1 With Dual HO2S)
R
312
AIR Misdirected During KOER
R
313
AIR Not Bypassed During KOER
R
314
AIR System Inoperative During KOER
R
326
EGR Temperature Sensor Circuit Above Maximum Voltage (2.0L, 2.3L HSC & 3.0L SHO)
C
Pressure Feedback EGR Circuit Voltage Low (Others)
C/R
327
EGR Circuit Below Minimum Voltage
C/O/R
328
EGR Valve Position Sensor Closed Valve Voltage Lower Than Expected
C/O/R
332
Insufficient EGR Flow Detected
C/R
334
EGR Valve Position Sensor Closed Valve Voltage Higher Than Expected
C/O/R
335
Pressure Feedback EGR Sensor Voltage Higher Or Lower Than Expected During KOEO
O
336
Pressure Feedback EGR Circuit Voltage Higher Than Expected
C/R
337
EGR Valve Position/Pressure Feedback EGR Circuit Above Maximum Voltage
C/O/R
338
Engine Coolant Temperature Lower Than Expected
C
339
Engine Coolant Temperature Higher Than Expected
C
341
Octane Adjust Service Pin Open
O
381
Erratic A/C Compressor Clutch Cycling
C
411
Cannot Control RPM During KOER Low RPM Check
R
412
Cannot Control RPM During KOER High RPM Check
R
415
Idle Air Control Solenoid
C
416
Idle Air Control Solenoid
C
452
Insufficient Input From Vehicle Speed Sensor To PCM
C
511
Read Out Memory Test Failure KOEO
C/O/R
512
Keep Alive Memory Test Failure
C
513
PCM Internal Voltage Failure (KOEO)
C/O/R
519
Power Steering Pressure Switch Circuit Open KOEO
O
521
Power Steering Pressure Switch Circuit Did Not Change States KOER
R
522
Vehicle Not In Park Or Neutral During KOEO
O
524
Low Speed Fuel Pump Circuit Open
C/O
525
Vehicle In Gear With A/C On
C/O
526
Neutral Position Switch Circuit Closed, A/C On
O
527
Neutral Drive Switch Circuit Open, A/C On
O
528
Clutch Position Switch Circuit Failure
C
529
Data Communication Link Or Electronic Engine Controller Fault
C
533
Data Communication Link To Electronic Instrument Cluster Fault
C
536
Brake On/Off Circuit Failure/Not Actuated During KOER
C/R
538
Insufficient RPM Change During KOER Dynamic Response Test
R
538
Invalid Cylinder Balance Test Due To Throttle Movement During Test
R
538
Invalid Cylinder Balance Test Due To Cylinder Identification Sensor Circuit Failure
R
539
A/C On/Defrost On During KOEO
O/R
542
Fuel Pump Circuit Open–PCM To Motor Ground
C/O
543
Fuel Pump Circuit Open–Battery To Powertrain Control Module (PCM)
C/O
551
Intake Air Control Circuit Failure KOEO
O
552
AIR Bypass Circuit Failure KOEO
O
553
AIR Bypass Circuit Failure KOEO
O
554
Fuel Pump Relay Control Circuit Failure
O
556
Fuel Pump Relay Primary Circuit Failure
C/O
557
Low Speed Fuel Pump Primary Circuit Failure
C/O
558
EGR Vacuum Regulator Circuit Failure
O
559
A/C On Relay Circuit Failure
O
563
High Speed Electric Fan Circuit Failure
O
564
Electric Fan Circuit Failure
O
565
Canister Purge Circuit Failure KOEO
O
566
Shift Solenoid Circuit Failure KOEO
O
569
Auxiliary Canister Purge Circuit Failure
O
571
EGR Circuit Failure
O
572
EGR Circuit Failure
O
578
A/C Pressure Sensor Circuit
C
579
Insufficient A/C Pressure Change
C
581
Power To Fan Circuit Over Current
C
582
Fan Circuit Open
O
583
Power To Fuel Pump Over Current
C
584
Power Ground Circuit Open
C
585
Power To A/C Clutch Over Current
C
586
A/C Clutch Circuit Open
C
587
Vehicle Control Relay Module Communication Failure
C/O
617
1–2 Shift Error
C
618
2–3 Shift Error
C
619
3–4 Shift Error
C
621
Shift Solenoid 1 Circuit Failure KOEO
C/O
622
Shift Solenoid 2 Circuit Failure KOEO
C/O
623
Transmission Control Indicator Lamp Circuit Failure
C/O
624
Electronic Pressure Control Circuit Failure
C/O
625
Hard Fault Is Present (5.8L)
C/O/R
625
Electronic Pressure Control Driver Open In PCM (Others)
C/.O
626
Converter Clutch Solenoid Circuit Failure KOEO
O
627
Torque Converter Clutch Solenoid Circuit Failure
O
628
Excessive Torque Converter Clutch Slippage
C
629
Torque Converter Clutch Solenoid Circuit Failure
C
631
Transmission Control Indicator Lamp Circuit Failure KOEO
O
632
Torque Converter Solenoid Circuit Did Not Change States During KOER
C
633
4 X 4 Switch Closed During KOEO
O
634
Manual Lever Position Sensor Voltage Higher Or Lower Than Expected
C/O
636
Transmission Fluid Temperature Higher Or Lower Than Expected
O/R
637
Transmission Fluid Temperature Sensor Circuit Above Maximum Voltage
C/O
638
Transmission Fluid Temperature Sensor Circuit Below Minimum Voltage
C/O
639
Insufficient Input From Turbine Speed Sensor
C/R
641
Shift Solenoid 3 Circuit Failure
C/O
643
Torque Converter Clutch Circuit Failure
C/O
645
Improper Gear Ratio In 1st Gear
C
646
Improper Gear Ratio In 2nd Gear
C
647
Improper Gear Ratio In 3rd Gear
C
648
Improper Gear Ratio In 4th Gear
C
649
Electronic Pressure Control Higher Or Lower Than Expected
C
651
Electronic Pressure Control Circuit Failure
C
652
Torque Converter Clutch Solenoid Circuit Failure
C
653
Torque Converter Solenoid Did Not Change States During KOER
R
654
Manual Lever Position Sensor Indicating Not In Park During Self Test
O
655
Manual Lever Position Sensor Indicating Not In Neutral During Self Test
—
656
Torque Converter Clutch Slippage Error
C
657
Transmission Over Temp Condition
C
659
High Vehicle Speed In Park Indicated
R
662
Shift Solenoid 2 Circuit
O
667
Transmission Range Sensor Circuit Below Minimum Voltage
C/O
668
Transmission Range Sensor Circuit Above Maximum Voltage
C/O
675
Transmission Range Sensor Circuit Voltage Out Of Range
O/R
998
Hard Fault Present
O/R
96 & newer vehicles are OBD2 systems
and REQUIRE A SCANNER, unless otherwise stated.
Warning: Please check for manufacturer specific codes and
confirm the trouble code descriptions with an appropriate manual.
Disclaimer: We cannot guarantee the accuracy of all information.
Please confirm the information with an appropriate manual.
We try and make them as accurate as we can, but sometimes we all make mistakes.
Here is a list of EEC-IV codes:
2 Digit Codes
11
System OK
12
Idle Speed Control motor or Air Bypass not controlling idle properly (generally idle too low) - ISC
13
(O)
ISC did not respond properly (extends to touch throttle then retracts for KOEO) - ISC
(R)
Idle Speed Control motor or Air Bypass not controlling idle properly (generally idle too high)
(M)
ISC sticking, open ITS circuit or TP sticking
14
Ignition pickup (PIP) was erratic - Ignition Systems
E4OD Transmission diesel RPM sensor - Diesel RPM sensor
15
(O)
No Keep Alive Memory power to PCM pin 1 or bad PCM (Memory Test Failure)
(M)
KAM (pin 1) was interrupted (was battery disconnected ?)
16
1.9L & 2.5L - Throttle stop set too high - IDLE or Idle Set Procedures
2.3L - RPM's too low - IDLE
(O)
Electronic ignition - IDM circuit fault - Ignition Systems
17
1.9L & 2.5L - Throttle stop set too low - IDLE
18
(R)
Check base timing & advance function - Timing Tests
(M)
Ignition TACH signal erratic - Ignition Systems
Spark Angle Word (SAW) circuit failure (1.9L SFI)
19
(O)
No Vehicle Power (pins 37 + 57) or bad PCM VPWR Diagnosis
(R)
Erratic idle during test (reset throttle & retest) - Idle Set Procedures
Electronic ignition Cylinder ID sensor/circuit problem - Ignition Systems
21
Engine Coolant Temperature (ECT) sensor out of range - ECT
22
MAP (vacuum) or BARO signal out of range - MAP
23
Throttle sensor out of range or throttle set too high - TPS
24
Intake Air Temperature (IAT) or Vane Air Temperature (VAT) sensor out of range - IAT VAT
25
Knock sensor not tested (ignore if not pinging) - KS
26
Mass Air Flow (MAF) or Vane Air Flow (VAF) out of range - MAF VAF
Transmission Oil Temperature (TOT) sensor out of range, Transmissions
27
Vehicle Speed Sensor problem - VSS
28
Vane Air Temperature (VAT) sensor out of range - VAT
2.3L w/Electronic Ignition - Cyl ID, IDM low or right coil pack failure - Ignition Systems
29
Vehicle Speed Sensor problem - VSS
31
(O,R,M)
EVP - EVP signal is/was out of range - EVP
(O,R,M)
EVR - EVP signal is/was low - EVR
(O,R,M)
PFE - PFE signal is/was low - PFE
32
(R)
EVP - EGR not responding properly during test - EVP
(O,R,M)
EVR - EVP signal is/was low - EVR
(R,M)
PFE - PFE shows low pressure, EGR not seating or memory, not seating intermittently - PFE
33
(O,M)
ALL - EGR did not open/ respond during test or if memory code, did not open intermittently - EVP EVR PFE
34
(R)
EVP - EGR did not respond properly during test - EVP
(O,R,M)
EVR - EVP sensor is/was high - EVR
(O,R,M)
PFE - PFE sensor is/was out of range - PFE
35
(R)
EVP - Engine RPM's too low to test EGR system - EVP
(O,R,M)
EVR - EVP sensor signal is/was high - EVR
(O,R,M)
PFE - PFE sensor signal is/was high - PFE
38
Idle Tracking Switch signal was intermittent - ISC
39
Transmission Torque Converter clutch not engaging - Transmissions
41
(R)
System lean - Fuel control
(M)
System was lean for 15 seconds or more (no HO2S switching) - Fuel control
42
(R)
System rich - Fuel control
(M)
System was rich for 15 seconds or more (no HO2S switching) - Fuel control
43
(R)
HO2S sensor not reading (run at 2000 rpm's for 2 minutes and retest - check for HO2S switching)
(M)
Was lean at WOT for 3 seconds or more - Fuel control
44
AIR system inoperative - Air Injection
45
AIR not Diverting (AIRD) - Air Injection
Electronic Ignition - coil primary circuit failure - Ignition Systems
46
AIR Bypass (AIRB) not working - Air Injection
Electronic Ignition - primary circuit failure coil 2 - Ignition Systems
47
Low flow unmetered air (check for small vacuum leaks, injector o'rings, gaskets etc )
E4OD transmission 4x4 switch/circuit problem - Transmissions
48
High flow unmetered air (check for large vacuum leak, inlet hoses etc. )
Electronic Ignition - coil primary circuit failure - Ignition Systems
49
Electronic Ignition - spout signal circuit problem - Ignition Systems
Transmission 1/2 shift problem - Transmissions
51
Engine Coolant Temperature (ECT) sensor signal is/was too high - ECT
52
Power Steering Pressure Switch/circuit open - PSP
(R)
Did you turn wheel during test ?
53
Throttle Position sensor too high - TPS
54
Intake Air Temperature (IAT) or Vane Air Temperature (VAT) signal high - IAT VAT
55
No or low (under 7.5 V) Key Power to PCM pin 5
56
Vane Air Flow (VAF) or Mass Air Flow (MAF) sensor high - VAF MAF
Transmission Oil Temperature sensor too high - Transmissions
57
Intermittent in Park/Neutral/ Switch or Neutral Pressure switch circuit - PNP or Transmissions
58
Idle Tracking Switch (ITS) signal problem ISC
Vane Air Temperature (VAT) sensor out of range or open - VAT
59
AXOD 4/3 circuit fault - Transmissions
3.0L SHO - Low speed fuel pump circuit problem - Power / Fuel Pump Circuits
Transmission 2/3 shift problem - Transmissions
61
Engine Coolant Temperature (ECT) sensor is or was too low - ECT
62
AXOD (KOEO only) 3/2 circuit short to ground - Transmissions
AXOD (KOEO AND KOER) 4/3 circuit failure - Transmissions
E4OD excessive converter clutch slippage - Transmissions
63
Throttle Position Sensor (TPS) signal too low TPS
64
Intake Air Temperature (IAT) or Vane Air Temperature (VAT) signal low or grounded - IAT VAT
65
Check intermittent HO2S (signal or ground) - Fuel Control
(R)
E4OD truck - cycle OD cancel switch after engine ID is received - Transmissions
1984 3.8L ONLY - O, M Battery voltage high (check for electrical system overcharging)
66
Vane Air Flow (VAF) or Mass Air Flow (MAF) signal low - VAF MAF
Transmission Oil Temperature (TOT) signal low (possibly grounded) - Transmissions
67
Park/Neutral circuit fault - PNP
Transmission Manual Lever Position (MLP) sensor circuit - Transmissions
(M)
Intermittent Park Neutral Position (PNP) sensor fault - PNP
68
Idle Tracking Switch (ITS) circuit (possibly grounded) - ISC
Vane Air Temperature (VAT) sensor out of range or grounded - VAT
3.8L AXOD -Transmission Temperature Switch (TTS) open - Transmissions
Electronic Transmission - Transmission Oil Temperature (TOT) sensor was overheated -Transmissions
69
AXOD transmission (O) 3/2 switch closed (possible short circuit) - Transmissions
AXOD (M) 3/2 switch open (poss short to power) - Transmissions
E4OD 3/4 shift problem - Transmissions
70
(M)
3.8L AXOD - Data link to instrument cluster fault Service any other EEC codes, erase memory and retest If code is still present refer to instrument cluster diagnosis manual
71
(M)
1.9L TBI, 2.3L TBI, 2.5L TBI - ITS signal was grounded when throttle should have been opening ITS-ISC ISC motor problem or Idle Tracking Switch (ITS) signal wire shorted to ground - ISC
(M)
1.9L MFI - PCM re-initialized Possible electrical noise, case ground or intermittent VPWR problem - VPWR Diagnosis
(M)
3.8L AXOD - Data link to instrument cluster fault - See code 70
72
(R)
No MAP or MAF change in "goose" test - retest, check for frequency or voltage change - MAP MAF
(M)
1.9L MFI - VPWR circuit to PCM was intermittent - VPWR Diagnosis
(M)
2.3L T/C - PCM re-initialized Possible electrical noise, case ground or intermittent VPWR problem - VPWR Diagnosis
(M)
3.8L AXOD - Message center data link circuit fault - See code 70
73
(O)
Rerun test, if 73 is still output replace TPS
(R)
No Throttle Position Sensor (TPS) change in "goose" test Must get at least 25% throttle rotation - TPS
74
Was brake depressed after engine ID was received ?
Brake On Off (BOO) signal open or short to ground - BOO
75
Brake On Off (BOO) signal shorted to power - BOO
76
Vane Air Flow (VAF) did not respond to "goose" test - VAF
77
System did not receive "goose" test - see TESTS
78
(M)
VPWR circuit to PCM was intermittent or the PCM is bad VPWR Diagnosis
79
A/C is on or pin 10 is shorted to power
81
Boost control solenoid - Solenoids
AIRD solenoid - Solenoids and Air Injection
3.0L SHO - Inlet Air Solenoid - Solenoids
82
2.3L TC - Fan Control wire shorted to ground - A/C and Fan Circuits
AIRB solenoid - Solenoids and Air Injection
3.8L SC - Super Charger Bypass Solenoid - Solenoids
83
High Electro Drive Fan circuit fault - A/C and Fan Circuits
EGR Control solenoid - Solenoids
3.0L SHO - Low Speed Fuel Pump Relay circuit - Power / Fuel Pump Circuits
84
EGR Vacuum Regulator - Solenoids
EGR cutoff solenoid - Solenoids
EGR Vent solenoid - Solenoids
85
2.3L T/C Automatic - 3/4-4/3 Shift solenoid - Transmissions
CANP solenoid (ALL 1989) - Solenoids
(M)
1.9L MFI - System has corrected rich condition - Fuel control
86
2.3L or 2.9L Truck - A4LD 3/4 shift solenoid - Transmissions
(M) 1.9L MFI - System has corrected lean condition - Fuel control
87
(O)
Fuel pump circuit fault (check inertia switch) - Power / Fuel Pump Circuits
Vehicles with 2 BBL carb - Temperature Compensated Accelerator Pump Solenoid - Solenoids (M) intermittent in fuel pump primary circuit - Power / Fuel Pump Circuits NOTE: On some Escorts with automatic seat belts this code is normal IN MEMORY due to the wiring
88
Throttle Kicker Solenoid - Solenoids
Variable Voltage Choke relay circuit fault - VVC
Fan Control circuit fault - A/C and Fan Circuits
A4LD - Converter Clutch Override solenoid - Transmissions
Electronic Ignition - IDM, DPI or spout circuit fault - Ignition Systems
89
A4LD - Converter Clutch Override solenoid - Transmissions
AXOD Torque Converter Control solenoid circuit - Transmissions
Exhaust Heat Control (heat riser) solenoid circuit - Solenoids
91
(R, M) System running lean - Fuel control
Transmission SS 1 circuit/solenoid problem - Transmissions
92
(R)
System running rich - Fuel control
Transmission SS 2 circuit/solenoid problem - Transmissions
93
(O,R)
Throttle linkage binding or bad ISC motor ISC HO2S not reading Fuel control
Transmission TCC circuit/solenoid problem - Transmissions
94
AIR system inoperative - Air Injection
Transmission TCC circuit/solenoid problem - Transmissions
95
(O)
Fuel pump: open, bad ground or always on - Power / Fuel Pump Circuits
(R)
AIR not Diverting (AIRD) - Air Injection
(M)
Possible bad fuel pump ground or open between fuel pump and pin 8 at PCM (Fuel Pump Monitor signal) - Power / Fuel Pump Circuits
96
(O)
Fuel pump monitor circuit shows no power - Power / Fuel Pump Circuits
(R)
AIR Bypass (AIRB) not working - Air Injection
(M)
(Service 87 code first if present) Fuel pump relay or battery power feed was open - Power / Fuel Pump Circuits
97
E4OD OD cancel light circuit failure - Transmissions
98
(R)
Did not pass KOEO yet (Get 11 in KOEO first)
Transmission EPC circuit/solenoid failure - Transmissions
99
(R)
ISC needs to learn (Let idle for 2 minutes, Erase memory and retest)
Transmission EPC circuit/solenoid failure - Transmissions
(R) = Engine Running test (M) = Memory code (O)=Key On Engine Off test
3 Digit codes
111
System checks OK
112
(O,M)
Intake Air Temperature (IAT) sensor is/was low or grounded - IAT
113
(O,M)
IAT sensor is/was high or open - IAT
114
(O,R)
IAT sensor out of range - IAT
116
(O,R)
Engine Coolant (ECT) sensor out of range - ECT
117
(O,M)
ECT sensor is/was low or grounded - ECT
118
(O,M)
ECT sensor is/was high or open - ECT
121
(O,R,M)
Throttle Position (TP) sensor out of range - TPS
122
(O,M)
TP low (possibly grounded or open circuit) - TPS
123
(O,M)
TP is/was high or short to power - TPS
124
(M)
TP voltage was higher than expected - Fuel control
125
(M)
TP voltage was lower than expected - Fuel control
126
(O,R,M)
MAP or BARO sensor out of range - ">MAP
128
(M)
MAP vacuum has not been changing - check vacuum lines - ">MAP
129
(R)
No MAP or Mass Air Flow sensor change during "goose" test - MAP MAF
136
(R)
Oxygen sensor not switching/system lean Left or Front HO2S - Fuel control
137
(R)
Oxygen sensor not switching/system rich Left or Front HO2S - Fuel control
138
(R)
Fault in Cold Start Injector circuit - Fuel control
139
(M)
Oxygen sensor not switching Left or Front HO2S - Fuel control
144
(M)
Oxygen sensor not switching Single, Right or Rear HO2S - Fuel control
157
(R,M)
Mass Air Flow signal is/was low or grounded - MAF
158
(O,R,M)
MAF sensor is/was high or short to power - MAF
159
(O,R)
MAF sensor is/was out of range - MAF
167
(R)
No Throttle Position sensor change in "goose" test (must get at least 25% rotation) - TPS
171
(M)
Oxygen sensor not switching - system was at adaptive limits - Single, Right or Rear HO2S - Fuel control
172
(R,M)
Oxygen sensor not switching - system is or was lean - Single, Right or Rear HO2S - Fuel control
173
(R,M)
Oxygen sensor not switching - system is or was rich - Single, Right or Rear HO2S - Fuel control
174
(M)
Oxygen sensor was slow in switching Single, Right or Rear HO2S - Fuel control
175
(M)
Oxygen sensor not switching - system was at adaptive limits - Left or Front HO2S - Fuel control
176
(M)
Oxygen sensor not switching - system is or was lean Left or Front HO2S - Fuel control
177
(M)
Oxygen sensor not switching - system was rich Left or Front HO2S - Fuel control
178
(M)
Oxygen sensor was slow in switching Left or Front HO2S - Fuel control
179
(M)
Fuel system was rich at part throttle Single, Right or Rear HO2S - Fuel control
181
(M)
Fuel system was lean at part throttle Single, Right or Rear HO2S - Fuel control
182
(M)
Fuel system was rich at idle Single, Right or Rear HO2S - Fuel control
183
(M)
Fuel system was lean at idle Single, Right or Rear HO2S - Fuel control
184
(M)
Mass Air (MAF) output higher than expected - Fuel control
185
(M)
Mass Air (MAF) output lower than expected - Fuel control
186
(M)
Injector pulse width longer than expected or Mass Air Flow (MAF) lower than expected - Fuel control
187
Injector pulse width shorter than expected or Mass Air Flow (MAF) higher than expected - Fuel control
188
(M)
Fuel system was rich at part throttle - Left or Front HO2S - Fuel control
189
(M)
Fuel system was lean at part throttle - Left or Front HO2S - Fuel control
191
(M)
Fuel system was rich at idle - Left or Front HO2S - Fuel control
192
(M)
Fuel system was lean at idle - Left or Front HO2S - Fuel control
193
Failure in Flexible Fuel (FF) sensor circuit - Fuel control
194
(M)
Perform cylinder balance test to check for inoperative injectors
195
(M)
Perform cylinder balance test to check for inoperative injectors
211
(M)
Ignition PIP signal was erratic or missing - Ignition Systems
212
(M)
Ignition TACH signal was erratic (module/wiring) or SPOUT circuit fault - Ignition Systems
213
(R)
Ignition SPOUT or SAW circuit open or shorted - Ignition Systems
214
(M)
Error in Cylinder ID (CID) circuit or signal - Ignition Systems
215
(M)
Primary circuit failure - ignition coil 1 - Ignition Systems
216
(M)
Primary circuit failure - ignition coil 2 - Ignition Systems
217
(M)
Primary circuit failure - ignition coil 3 - Ignition Systems
218
(M)
IDM signal open or high or left coil pack failure - Ignition Systems
219
(M)
SPOUT circuit failure, timing defaulted to 10 degrees - follow code 213 diagnosis
222
(M)
IDM open or high or right coil pack failure - Ignition Systems
223
(M)
Dual Plug (DPI), SPOUT or IDM circuit fault - Ignition Systems
224
(M)
Failure in ignition coil primary circuit - Ignition Systems
225
(R)
Knock sensor not tested (ignore if not pinging) - KS
226
(O)
Ignition Diagnostic Monitor (IDM) signal fault - Ignition Systems
232
(M)
EI primary coil circuit failure - Ignition Systems
238
(M)
EI primary circuit failure - ignition coil 4 - Ignition Systems
311
(R)
AIR system not working - Single, Right or Rear HO2S - Air Injection
312
(R)
AIR not diverting - Air Injection
313
(R)
AIR not bypassing - Air Injection
314
(R)
AIR inoperative, Left or Front HO2S - Air Injection
326
(R,M)
Pressure Feedback EGR shows low pressure EGR not seating or not seating intermittently - PFE
327
(O,R,M)
EGR feedback signal is/was low - EVR or PFE
328
(O,R,M)
EGR Valve Position (EVP) is/was low - EVR
332
(R,M)
EGR did not open/respond during test or if memory code, did not open intermittently - EVR or PFE
334
(O,R,M)
EVP sensor is/was high - EVR
335
(O)
EGR feedback signal is/was out of range - EVR or PFE
336
(O,R,M)
PFE sensor signal is/was was high - ">PFE
337
(O,R,M)
EGR feedback signal is/was was high - EVR
338
(M)
Cooling system did not heat up (check cooling system / thermostat operation)
339
(M)
Cooling system overheated (check cooling system / thermostat operation)
341
(O)
Octane jumper installed (information only code to notify you if it is installed)
411
(R)
Idle speed system not controlling idle properly (generally idle too high) - ISC
412
(R)
Idle speed system not controlling idle properly (generally idle too low) - ISC
452
(M)
Vehicle Speed Sensor (VSS) problem
511
(O)
No power to PCM pin 1 or bad PCM (processor)
512
(M)
Memory power (PCM pin 1) was interrupted - Was battery disconnected ?
513
(O)
Replace processor (PCM) (internal failure)
519
(O)
PSP switch/circuit open - PSP h Pedal Position (CPP) circuit fault - PNP
528
(M)
System shows voltage at pin 10 (is A/C on ?) or pin 30 (PNP, CPP switch) - PNP
529
(M)
Data Communications Link to processor failure Service any EEC codes, erase memory and retest If code is still present refer to instrument cluster diagnosis manual
533
(M)
Data Communications Link to instrument cluster failure - see 529
536
(O,R,M)
Brake On Off open or shorted to ground - BOO
538
(R)
System did not receive "goose" test - TESTS
539
(O)
System shows voltage at PCM pin 10 Is A/C on ?
542
(O,M)
Fuel pump open, bad ground or always on - - Power / Fuel Pump Circuits
543
(O)
Fuel pump monitor circuit shows no power - Power / Fuel Pump Circuits
(M)
(Service 556 code first if present) Fuel pump relay or battery power feed was open - Power / Fuel Pump Circuits
551
Problem in Intake Manifold Runner Control (IMRC) solenoid/circuit - Solenoids
552
(O)
AIRB solenoid/circuit failure - Solenoids
553
(O)
AIRD solenoid/circuit failure - Solenoids
554
(O)
Fuel Press Regulator Control solenoid/circuit fault - Power / Fuel Pump Circuits
556
(O,M)
Fuel pump relay primary circuit fault - Power / Fuel Pump Circuits
557
(O,M)
Low speed pump relay primary circuit fault - Power / Fuel Pump Circuits
558
(O)
EGR vacuum regulator solenoid/circuit failure - EVR or PFE or Solenoids
559
(O)
A/C relay primary circuit fault - A/C and Fan Circuits
563
(O)
High Fan Control (HFC) circuit failure - A/C and Fan Circuits
564
(O)
Fan Control (FC) circuit failure - A/C and Fan Circuits
565
(O)
Canister Purge 1 solenoid/circuit failure - Solenoids
566
(O)
transmission 3/4 shift solenoid/circuit - Transmissions
569
(O)
Canister Purge 2 solenoid/circuit failure - Solenoids
578
(M)
A/C pressure sensor VREF short to ground - A/C and Fan Circuits
579
(M)
ACP sensor did not change with A/C on - A/C and Fan Circuits
581
(M)
Cooling fan current was excessive - A/C and Fan Circuits
582
(O)
Open cooling fan circuit - A/C and Fan Circuits
583
(M)
Fuel pump current was excessive - Power / Fuel Pump Circuits
584
(M)
Open power ground circuit - Power / Fuel Pump Circuits
585
(M)
A/C clutch current was excessive - A/C and Fan Circuits
586
(M)
Open circuit in A/C clutch - A/C and Fan Circuits
587
(O, M)
Communication problem between PCM and Variable Control Relay Module (VCRM) - Power / Fuel Pump Circuits
617
(M)
Transmission shift failure (1/2 shift) - Transmissions
618
(M)
Transmission shift failure (2/3 shift) - Transmissions
619
(M)
Transmission shift failure (3/4 shift) - Transmissions
621
(O)
Solenoid/circuit failure - shift solenoid 1 - Transmissions
622
(O)
Solenoid/circuit failure - shift solenoid 2 - Transmissions
624
(O,M)
Solenoid/circuit failure -Electronic Pressure Control (EPC) current is high - Transmissions
625
(O,M)
Solenoid/circuit failure - Electronic Pressure Control (EPC) current is low - Transmissions
626
(O)
Transmission Coast Clutch (CCS) Solenoid/circuit fault - Transmissions
627
(O)
Torque Converter Clutch circuit fault - Transmissions
628
(M)
Excessive converter clutch slippage - Transmissions
629
(O,M)
Torque Converter Clutch circuit fault - Transmissions
631
(O)
Overdrive Cancel Light circuit problem - Transmissions
632
(R)
E4OD - Transmission Control Switch (TCS) should be cycled once between engine ID and Goose test
633
(O)
4x4L switch should be in 4x2 or 4x4 high for the test
634
(O,M)
Park/Neutral Position (PNP) or Clutch Pedal Position (CPP) circuit fault Electronic shift transmission - Manual Lever Position (MLP) sensor out of range in Park-Transmissions
636
(O,R)
Transmission Oil Temperature (TOT) sensor out of range - Transmissions
637
(O,M)
TOT sensor is/was high or open - Transmissions
638
(O,M)
TOT sensor is/was low or grounded - Transmissions
639
(R,M)
Transmission Speed sensor (TSS) circuit fault - Transmissions
641
(O)
Transmission solenoid/circuit failure Shift Solenoid 3 - Transmissions
643
(O,M)
Torque Converter Clutch (TCC) circuit - Transmissions
645
(M)
Transmission 1st gear failure - Transmissions
646
(M)
Transmission 2nd gear failure - Transmissions
647
(M)
Transmission 3rd gear failure - Transmissions
648
(M)
Transmission 4th gear failure - Transmissions
649
(M)
Transmission EPC system failure - Transmissions
651
(M)
Transmission EPC solenoid/circuit fault - Transmissions
652
(O)
Torque Converter Clutch (TCC) circuit fault - Transmissions
654
(O)
Transmission selector not in PARK - Transmissions
656
(M)
Torque Converter Clutch (TCC) slip - Transmissions
657
(M)
Transmission temperature was excessive - Transmissions
96 & newer vehicles are OBD2 systems
and REQUIRE A SCANNER, unless otherwise stated.
Warning: Please check for manufacturer specific codes and
confirm the trouble code descriptions with an appropriate manual.
Disclaimer: We cannot guarantee the accuracy of all information.
Please confirm the information with an appropriate manual.
This was the more complete list from the second link:
EEC-IV
C—Continuous memory code.
O—Key On, engine Off self test code.
R—Engine running self test code.
MIL
Type
11
System Pass
C/O/R
12
RPM Not Within Self Test Upper Limit
R
13
RPM Not Within Self Test Lower Limit
R
DC Motor Did Not Move
C/O/R
14
Profile Ignition Pickup Circuit Failure
C
Engine RPM Sensor Circuit Fault (Diesel)
C
15
Readout Memory Test Failed
O
Keep Alive Memory Test Failed
C
16
Ignition Diagnostic Module (2.9L, 3.0L & 4.0L)
O
Idle RPM High With ISC Retracted (2.5L)
R
RPM Above Self Test Limit With ISC Off (1986–90 1.9L EFI)
R
RPM Too Low To Perform HO2S Test (Others)
R
17
Idle RPM Low With ISC Retracted (1.9L & 2.5L CFI)
R
RPM Below Self Test Limit With ISC Off (1986–90 1.9L EFI)
R
18
Spark Out (SPOUT) Circuit Open
R
Loss Of Ignition Diagnostic Module Input To PCM/SPOUT Circuit Grounded
C
Spark Angle Word (SAW) Circuit Failure (1.9L SFI)
C/R
19
Failure In PCM Internal Voltage
R
Erratic RPM During Hard Idle Self Test
R
RPM Drop Too Low During ISC Off Test (1.9L EFI)
R
Power Processor Check (2.3L HSC EFI)
O
Cylinder Identification Sensor Input Failure (3.0L SHO)
C
21
Engine Coolant Temperature (ECT) Sensor Out Of Self Test Range
O/R
22
Manifold Absolute Pressure/Barometric Pressure Sensor Out Of Self Test Range
C/O/R
23
Throttle Position Sensor Out Of Self Test Range
C/O/R
Fuel Injector Pump Lever Sensor Input Is Out Of Self Test Range (Diesel)
O/R
24
Intake Air Temperature/Air Charge Temperature Sensor Out Of Self Test Range
O/R
25
Knock Not Sensed During Dynamic Response Test
R
26
Mass Air Flow/Vane Air Flow Sensor Out Of Self Test Range
O/R
Transmission Fluid Temperature Sensor Input Out Of Self Test Range (5.0L, 5.8L, 7.3L & 7.5L Truck)
O/R
27
Vehicle Speed Sensor (2.3L Turbo)
C
28
Loss Of Ignition Diagnostic Module RH Side
C
Vane Air Temperature Sensor Input Out Of Self Test Range (1.9L EFI)
O/R
29
Insufficient Input From Programmable Speedometer/Odometer Module (From 1993)
C
Insufficient Input From Vehicle Speed Sensor (To 1992)
C
31
EGR Valve Position/Pressure Feedback EGR Circuit Below Minimum Voltage
C/O/R
32
EGR Not Controlling (2.3L OHC & 3.8L CFI)
R
EGR Valve Not Seated (1.9L CFI, 2.9L & 3.0L SHO)
C/R
EGR Valve Position/Pressure Feedback EGR Voltage Below Closed Voltage (Others)
C/O/R
33
EGR Not Closing Properly (2.3L OHC & 3.8L CFI)
C/R
Throttle Position Sensor Noisy/Harsh On Line (Diesel)
C
EGR Valve Opening Not Detected (Others)
C/R
34
EGR Valve Opening Not Detected (2.3L OHC & 3.8L CFI)
R
Defective EGR Pressure Transducer Sensor (1.9L CFI, 2.3L HSC EFI & 3.0L)
C/O/R
EGR On/Off Control (2.3L Turbo)
R
EGR Valve Position/Pressure Feedback EGR Voltage Above Closed Limit (Others)
C/O/R
35
RPM Too Low To Perform EGR Test (2.3L OHC & 3.8L CFI)
R
EGR Valve Position/EGR Pressure Feedback EGR Circuit Above Maximum Voltage (Others)
C/O/R
36
System Indicates Lean At Idle
R
37
System Indicates Rich At Idle
R
38
DC Motor Idle Speed Control/Idle Tracking Throttle Position Sensor Open Circuit (2.3L CFI & 2.5L HSC)
C
39
AXOD Converter Bypass Clutch Not Applying Properly
C
41
System Indicates Lean
R
No HO2S Switching Detected
C
42
System Indicates Rich
R
No O2S Switching Detected
C
43
HO2S Lean At Wide Open Throttle (1986–90 1.9L MFI)
C
Throttle Position Sensor Below Idle Sped (Diesel)
C
44
Secondary Air System Inoperative
R
45
Secondary Air Upstream During Self Test
R
Coil 1 Primary Circuit Failure (1990–91 1.9L EFI/SFI, )
C
Distributorless Ignition System Coil Pack 3 Circuit Failure (3.0L SHO 3.8L SC)
C
46
Secondary Air Not Bypassed During Self Test
R
Coil 2 Primary Circuit Failure (1990–91 1.9L MFI/SFI)
C
Distributorless Ignition System Coil Pack 1 Circuit Failure (3.0L SHO 3.8L SC)
C
47
4 X 4 Switch Is Closed
O
Measured Air Flow Low At Base Idle
R
48
Loss Of Ignition Diagnostic Monitor LH Side (2.3L)
C
Measured Air Flow High At Base Idle (1986–90 1.9L EFI)
R
Distributorless Ignition System Coil Pack 2 Circuit Failure (3.0L SHO 3.8L SC)
C
49
Spark Output (SPOUT) Signal Default To 10°. BDTC (3.0L SHO & 3.8L SC)
C
1–2 Shift Error (Others)
C
51
Engine Coolant Temperature Circuit Open
O/C
52
Power Steering Pressure Switch Circuit Open
O
Power Steering Pressure Switch Circuit Did Not Change States
R
53
Throttle Position Sensor Circuit Above Maximum Voltage
C/O
Fuel Injector Pump Lever Sensor Input Is Greater Than Self Test (Diesel)
C/O
54
Intake Air Temperature/Air Charge Temperature Circuit Open
C/O/R
55
Key Power Check
R
56
Transmission Fluid Temperature Circuit Open
C/O
Mass Air Flow/Vane Air Flow Sensor Circuit Above Maximum Voltage
C/O/R
57
Transaxle Neutral Position Switch Circuit Failed Open
C
58
Idle Tracking Switch Circuit Open Or Grounded (CFI)
O/R
Vane Air Temperature Sensor Input Greater Than Self Test Maximum (EFI)
C/O
59
AXOD Neutral Position Switch Circuit Failed Open (3.0L & 3.8L)
C
2–3 Shift Error (Others)
C
Low Speed Fuel Pump Circuit Failure, Battery To PCM (3.0L SHO)
C/O
AXOD 4/3 Pressure Switch Circuit Failed Closed
O
AXOD 4/3 Pressure Switch Circuit Failed Open
C
61
ECT Sensor Circuit Grounded
C/O/R
62
Torque Converter Clutch Error
C
AXOD 4/3 Or 3/2 Pressure Switch Circuit Grounded
O
63
Throttle Position Sensor Circuit Below Minimum Voltage
C/O/R
Fuel Injection Pump Lever Sensor Input Is Less Than Self Test Min. (Diesel)
C/O
64
Intake Air Temperature/Air Charge Temperature Circuit Grounded
C/O/R
65
Transmission Control Switch/Overdrive Cancel Switch Circuit Did Not Change States
R
Fuel Control (2.3L Turbo)
C
66
Mass Air Flow Sensor Circuit Below Minimum Voltage (Except 1.9L MFI & 2.3L Turbo)
C
Vane Air Flow Sensor Input Less Than Self Test Minimum (1.9L MFI & 2.3L Turbo)
O/C
Transmission Fluid Temperature Circuit Grounded (Others)
O/C
67
Park Neutral Position Switch Circuit Open; A/C On (Manual)
O
Manual Lever Position Sensor Out Of Range/A/C On
O/C
Clutch Switch Circuit Failure
C
A/C Input High (2.5L TBI)
O/C
68
Idle Tracking Switch Closed (1.9L, 2.3L, 2.5L & 3.8L CFI)
O/R
Vane Air Temperature Sensor Input Less Than Self Test Minimum (1.9L MFI & 2.3L Turbo)
O/C
Transmission Fluid Temperature Transmission Over Temp (Overheated) (Diesel)
C
69
3–4 Shift Error
C
AXOD Neutral Position Switch Failed Open (3.0L)
C
AXOD 3/2 Pressure Switch Failed Closed (3.8L SFI)
C/O
70
EEC IV Data Transaxle Circuit Failed (3.8L SFI)
C
71
Idle Tracking Switch Closed On Pre-Position (1.9L, 2.3L & 2.5L CFI)
C
Software Re-Initalization Detected (1.9L EFI)
C
Cluster Center Control Circuit Failed (3.8L SFI)
C
72
Insufficient Manifold Absolute Pressure/Mass Air Flow Change During Dynamic Response Test
R
Power Interrupt Software Re-Initalization Detected (1.9L & 2.3L Turbo)
C
Message Center Control Assembly Circuit Failed (3.8L SFI)
C
73
Insufficient Throttle Position Change During Dynamic Response Test
O/R
74
Brake On/Off Circuit Open–Not During Self Test
R/C
75
rake On/Off Circuit Closed/ECA Input Open
R
76
Insufficient Vane Air Flow Sensor Output Change During Dynamic Response Test
R
77
Operator Error Dynamic Response Test
R
78
Re-Initalization Check
R
79
A/C On/Defrost On During Self Test
O
81
Secondary Air Diverter Circuit Failure
O
Turbo Boost (2.3L Turbo)
O
Insufficient IAS Output Voltage Change When Solenoid Is Activated (3.0L SHO)
O
82
Secondary Air Bypass Circuit Failure
O
Integrated Relay Control Module (2.3L Turbo)
O
Supercharger Bypass Circuit Failure (3.8L SC)
O
83
Integrated Relay Control Module (2.3L Turbo & 2.5L)
O
High Electric Drive Fan Circuit Failure (1.9L & 2.5L SFI)
O
EVP/EGRC/EGRV (2.3L OHC & 3.8L CFI)
O
Low Speed Fuel Pump Relay Circuit Open (3.0L SHO)
C/O
Integrated Relay Control Module (3.8L Turbo)
O
High Electric Drive Fan Circuit Failure (3.8L SFI & 3.8L SC)
O
84
EGR Valve Position/Pressure Feedback EGR/EGR Control Circuit Failure
O
85
Adaptive Fuel Lean Limit Reached (1.9L EFI)
C
Shift Solenoid 3/4–4/3 (2.3L Turbo)
O
CANP Circuit Failure (Others)
O
86
Shift Solenoid Circuit Failure (2.9L 3.0L & 4.0L)
O
Adaptive Fuel Rich Limit Reached (1.9L EFI)
C
87
Primary Fuel Pump Circuit Failure
O/C
Integrated Relay Control Module (2.3L Turbo & 2.5L & 3.8L MFI)
O
88
Loss Of Dual Plug Input Control
C
Shift Solenoid 3/4–4/3 (2.3 Turbo)
O
Integrated Relay Control Module (2.5 L HSC & 3.8L EFI)
O
Electric Drive Fan Circuit Failure (2.5L, 3.0L SHO & 3.8L SFI)
O
Throttle Kicker Fault (5.0L)
—
89
Converter Clutch Override Circuit Failure (2.9L, 3.0L & 4.0L)
O
Exhaust Heat Control (3.8L CFI)
O
91
Shift Solenoid 1 Circuit Failure
O
HO2S Circuit Indicates Lean
R
No HO2S Switching Detected
C
92
Shift Solenoid 2 Circuit Failure
O
HO2S Circuit Indicates Rich
R
93
Throttle Position Sensor Input Low At Maximum D.C. Motor Extension (1.9L, 2.3L & 2.5L TBI)
O
Converter Clutch Solenoid Circuit Failure (Others)
O
94
Torque Converter Clutch Solenoid Circuit Failure
O
Secondary Air Injection Inoperative
R
95
Integrated Relay Control Module (2.5L HSC & 3.8L EFI)
C/O
Fuel Pump Circuit Open-PCM To Motor Ground (Others)
C/O
96
Integrated Relay Control Module (2.5L HSC & 3.8L EFI)
C/O
High Speed Fuel Pump Relay Circuit Open (3.0L SHO)
C/O
Fuel Pump Circuit Open-Battery To PCM (Others)
C/O
97
Transmission Control Indicator Lamp Circuit Failure
O
98
Hard Fault Present
R
Electronic Pressure Control Driver Open In PCM (Diesel)
O
99
Electronic Pressure Control Circuit Failure
O/C
Electronic Engine System Has Not Learned To Control Idle
R
111
System Pass
C/O/R
112
Intake Air Temperature/Air Charge Temperature Sensor Circuit Below Minimum Voltage
C/O
113
Intake Air Temperature/Air Charge Temperature Sensor Circuit Above Maximum Voltage
C/O
114
Intake Air Temperature/Air Charge Temperature Higher Or Lower Than Expected
O/R
116
Engine Coolant Temperature Higher Or Lower Than Expected
O/R
117
ECT Sensor Circuit Below Minimum Voltage
C/O
118
ECT Sensor Circuit Above Maximum Voltage
C/O
121
Closed Throttle Voltage Higher Or Lower Than Expected
C/O/R
121
Indicates Throttle Position Voltage Inconsistent With Mass Air Flow Sensor
C/O/R
122
Throttle Position Sensor Circuit Below Minimum Voltage
C/O
123
Throttle Position Sensor Circuit Above Maximum Voltage
C/O
124
Throttle Position Sensor Voltage Higher Than Expected
C
125
Throttle Position Sensor Voltage Lower Than Expected
C
126
Manifold Absolute Pressure/Barometric Pressure Sensor Higher Or Lower Than Expected
C/O/R
Cylinder Identification Circuit Failure (3.0L SHO)
C
128
Manifold Absolute Pressure Sensor Vacuum Hose Damaged/Disconnected
C
129
Insufficient Manifold Absolute Pressure/Mass Air Flow Change During Dynamic Response Test KOER
R
136
System Indicates Lean (Bank No. 1)
R
137
System Indicates Rich (Bank No. 2)
R
138
Cold Start Injector Flow Insufficient
R
139
No HO2S Switch Detected
C
141
Flexible Fuel Control
R
144
No HO2S Switch Detected
C
157
Mass Air Flows Sensor Circuit Below Minimum Voltage
C
158
Mass Air Flow Sensor Circuit Above Maximum Voltage
C/O
159
Mass Air Flow Higher Or Lower Than Expected
O/R
167
Insufficient Throttle Position Change During Dynamic Response Test
R
171
Fuel System At Adaptive Limits
C
No HO2S Switching Detected
C
172
HO2S System Indicates Lean
C/R
173
HO2S System Indicates Rich
R
174
HO2S Switching Time Is Slow
C
175
Fuel System At Adaptive Limits (Bank No. 2)
C
176
System Indicates Lean (Bank No. 2)
C
Insufficient TP Change During Dynamic Response Test (4.9L)
R
177
System Indicates Rich (Bank No. 2)
C
178
HO2S Switch Time Is Slow (Bank No. 1)
C
179
Fuel System At Lean Adaptive Limit At Part Throttle, System Rich (1.9L, 2.0L. 2.3L HSC, 2.5L & 3.0L)
C
Fuel System Adaptive Lean Limit Is Reached (4.6L, 4.9L 5.0L, 5.8L, 7.0L & 7.5L)
C
Fuel System At Rich Adaptive Limit (Others)
C
181
Fuel System At Rich Adaptive Limit At Part Throttle, System Lean (1.9L, 2.0L, 2.3L HSC, 2.5L & 3.0L)
C
Fuel System Adaptive Rich Limit Is Reached (4.6L, 4.9L, 5.0L, 5.8L , 7.0L & 7.5L)
C
Fuel System At Lean Adaptive Limit (Others)
C
182
Fuel System At Lean Adaptive Limit At Idle, System Rich (1.9L, 2.3L, 2.5L, 3.0L, 3.8L SC, 4.6L , 7.0L & 7.5L)
C
Fuel System At Lean Adaptive Limit (Others)
C
183
Fuel System At Rich Adaptive Limit At Idle, System Lean (1.9L, 2.3L, 3.0L, 3.8L SC, 4.6L, 7.0L & 7.5L)
C
Fuel System At Rich Adaptive Limit (Others)
C
184
Mass Air Flow Sensor Circuit Voltage Higher Than Expected
C
185
Mass Air Flow Sensor Circuit Voltage Lower Than Expected
C
186
Injector Pulse Width Higher Than Expected (With BARO Sensor)
C
Injector Pulse Width Higher Or Mass Air Flow Lower Than Expected (Less BARO Sensor)
C
187
Injector Pulse Width Lower Than Expected (With BARO Sensor)
C
Injector Pulse Width Lower Or MAF Higher Than Expected (Less BARO Sensor)
C
188
Fuel System At Lean Adaptive Limit
C
189
Fuel System At Rich Adaptive Limit
C
191
Fuel System At Lean Adaptive Limit (Front)
C
192
Fuel System At Rich Adaptive Limit (Front)
193
Flexible Fuel Sensor Circuit Failure
O
211
Profile Ignition Pickup Circuit Failure
C
212
Loss Of Ignition Diagnostic Module Input To PCM/SPOUT Circuit Grounded
C
213
Spark Output (SPOUT) Circuit Open
R
214
Cylinder Identification Circuit Failure
C
215
PCM Detected Coil 1 Primary Circuit Failure (EI)
C
216
PCM Detected Coil 2 Primary Circuit Failure (EI)
C
217
PCM Detected Coil 3 Primary Circuit Failure (EI)
C
218
Loss Of Ignition Diagnostic Module Signal LH Side (Dual Plug EI)
C
219
Spark Timing Error
C
221
Spark Timing Error
C
222
Loss Of Ignition Diagnostic Module Signal RH Side (Dual Plug EI)
C
223
Loss Of Dual Plug Ignition Control (Dual Plug EI)
C
224
PCM Detected Coil 1, 2, 3 Or 4 Primary Circuit Failure (EI)
C
Erratic Ignition Diagnostic Module Input To Processor
C
Loss Of Tack Input To Processor/SPOUT Circuit Grounded (5.8L)
C
225
Knock Not Sensed During Dynamic Response Test KOER
R
226
Ignition Diagnostic Module Signal Not Received (EI)
O
232
PCM Detected Coil 1, 2, 3 Or 4 Primary Circuit Failure (EI)
C
238
PCM Detect Coil 4 Primary Circuit Failure
C
244
Cylinder Identification Sensor Circuit Failure (2.0L)
R
311
AIR System Inoperative/AIR System Inoperative During KOER (Bank No. 1 With Dual HO2S)
R
312
AIR Misdirected During KOER
R
313
AIR Not Bypassed During KOER
R
314
AIR System Inoperative During KOER
R
326
EGR Temperature Sensor Circuit Above Maximum Voltage (2.0L, 2.3L HSC & 3.0L SHO)
C
Pressure Feedback EGR Circuit Voltage Low (Others)
C/R
327
EGR Circuit Below Minimum Voltage
C/O/R
328
EGR Valve Position Sensor Closed Valve Voltage Lower Than Expected
C/O/R
332
Insufficient EGR Flow Detected
C/R
334
EGR Valve Position Sensor Closed Valve Voltage Higher Than Expected
C/O/R
335
Pressure Feedback EGR Sensor Voltage Higher Or Lower Than Expected During KOEO
O
336
Pressure Feedback EGR Circuit Voltage Higher Than Expected
C/R
337
EGR Valve Position/Pressure Feedback EGR Circuit Above Maximum Voltage
C/O/R
338
Engine Coolant Temperature Lower Than Expected
C
339
Engine Coolant Temperature Higher Than Expected
C
341
Octane Adjust Service Pin Open
O
381
Erratic A/C Compressor Clutch Cycling
C
411
Cannot Control RPM During KOER Low RPM Check
R
412
Cannot Control RPM During KOER High RPM Check
R
415
Idle Air Control Solenoid
C
416
Idle Air Control Solenoid
C
452
Insufficient Input From Vehicle Speed Sensor To PCM
C
511
Read Out Memory Test Failure KOEO
C/O/R
512
Keep Alive Memory Test Failure
C
513
PCM Internal Voltage Failure (KOEO)
C/O/R
519
Power Steering Pressure Switch Circuit Open KOEO
O
521
Power Steering Pressure Switch Circuit Did Not Change States KOER
R
522
Vehicle Not In Park Or Neutral During KOEO
O
524
Low Speed Fuel Pump Circuit Open
C/O
525
Vehicle In Gear With A/C On
C/O
526
Neutral Position Switch Circuit Closed, A/C On
O
527
Neutral Drive Switch Circuit Open, A/C On
O
528
Clutch Position Switch Circuit Failure
C
529
Data Communication Link Or Electronic Engine Controller Fault
C
533
Data Communication Link To Electronic Instrument Cluster Fault
C
536
Brake On/Off Circuit Failure/Not Actuated During KOER
C/R
538
Insufficient RPM Change During KOER Dynamic Response Test
R
538
Invalid Cylinder Balance Test Due To Throttle Movement During Test
R
538
Invalid Cylinder Balance Test Due To Cylinder Identification Sensor Circuit Failure
R
539
A/C On/Defrost On During KOEO
O/R
542
Fuel Pump Circuit Open–PCM To Motor Ground
C/O
543
Fuel Pump Circuit Open–Battery To Powertrain Control Module (PCM)
C/O
551
Intake Air Control Circuit Failure KOEO
O
552
AIR Bypass Circuit Failure KOEO
O
553
AIR Bypass Circuit Failure KOEO
O
554
Fuel Pump Relay Control Circuit Failure
O
556
Fuel Pump Relay Primary Circuit Failure
C/O
557
Low Speed Fuel Pump Primary Circuit Failure
C/O
558
EGR Vacuum Regulator Circuit Failure
O
559
A/C On Relay Circuit Failure
O
563
High Speed Electric Fan Circuit Failure
O
564
Electric Fan Circuit Failure
O
565
Canister Purge Circuit Failure KOEO
O
566
Shift Solenoid Circuit Failure KOEO
O
569
Auxiliary Canister Purge Circuit Failure
O
571
EGR Circuit Failure
O
572
EGR Circuit Failure
O
578
A/C Pressure Sensor Circuit
C
579
Insufficient A/C Pressure Change
C
581
Power To Fan Circuit Over Current
C
582
Fan Circuit Open
O
583
Power To Fuel Pump Over Current
C
584
Power Ground Circuit Open
C
585
Power To A/C Clutch Over Current
C
586
A/C Clutch Circuit Open
C
587
Vehicle Control Relay Module Communication Failure
C/O
617
1–2 Shift Error
C
618
2–3 Shift Error
C
619
3–4 Shift Error
C
621
Shift Solenoid 1 Circuit Failure KOEO
C/O
622
Shift Solenoid 2 Circuit Failure KOEO
C/O
623
Transmission Control Indicator Lamp Circuit Failure
C/O
624
Electronic Pressure Control Circuit Failure
C/O
625
Hard Fault Is Present (5.8L)
C/O/R
625
Electronic Pressure Control Driver Open In PCM (Others)
C/.O
626
Converter Clutch Solenoid Circuit Failure KOEO
O
627
Torque Converter Clutch Solenoid Circuit Failure
O
628
Excessive Torque Converter Clutch Slippage
C
629
Torque Converter Clutch Solenoid Circuit Failure
C
631
Transmission Control Indicator Lamp Circuit Failure KOEO
O
632
Torque Converter Solenoid Circuit Did Not Change States During KOER
C
633
4 X 4 Switch Closed During KOEO
O
634
Manual Lever Position Sensor Voltage Higher Or Lower Than Expected
C/O
636
Transmission Fluid Temperature Higher Or Lower Than Expected
O/R
637
Transmission Fluid Temperature Sensor Circuit Above Maximum Voltage
C/O
638
Transmission Fluid Temperature Sensor Circuit Below Minimum Voltage
C/O
639
Insufficient Input From Turbine Speed Sensor
C/R
641
Shift Solenoid 3 Circuit Failure
C/O
643
Torque Converter Clutch Circuit Failure
C/O
645
Improper Gear Ratio In 1st Gear
C
646
Improper Gear Ratio In 2nd Gear
C
647
Improper Gear Ratio In 3rd Gear
C
648
Improper Gear Ratio In 4th Gear
C
649
Electronic Pressure Control Higher Or Lower Than Expected
C
651
Electronic Pressure Control Circuit Failure
C
652
Torque Converter Clutch Solenoid Circuit Failure
C
653
Torque Converter Solenoid Did Not Change States During KOER
R
654
Manual Lever Position Sensor Indicating Not In Park During Self Test
O
655
Manual Lever Position Sensor Indicating Not In Neutral During Self Test
—
656
Torque Converter Clutch Slippage Error
C
657
Transmission Over Temp Condition
C
659
High Vehicle Speed In Park Indicated
R
662
Shift Solenoid 2 Circuit
O
667
Transmission Range Sensor Circuit Below Minimum Voltage
C/O
668
Transmission Range Sensor Circuit Above Maximum Voltage
C/O
675
Transmission Range Sensor Circuit Voltage Out Of Range
O/R
998
Hard Fault Present
O/R
96 & newer vehicles are OBD2 systems
and REQUIRE A SCANNER, unless otherwise stated.
Warning: Please check for manufacturer specific codes and
confirm the trouble code descriptions with an appropriate manual.
Disclaimer: We cannot guarantee the accuracy of all information.
Please confirm the information with an appropriate manual.
We try and make them as accurate as we can, but sometimes we all make mistakes.