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Stock 1991 - 1994 Explorers For questions related to the base Ford Explorer. Problem solving, maintenance, TSB, service bulletins, owner reviews, specifications. No modification questions.

List of codes, conditions, and what they mean.

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Old 11-01-2008, 01:19 AM   #1
Blacksheep Josh
Slinky+Escalator=Fun
Statesboro, GA
 
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1993 Ford Explorer XLT
 
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List of codes, conditions, and what they mean.

Due to the continuous aging of our vehicles, inabilities to buy new vehicles, we're all striving to maintain our vehicles, so below is a list I've made of codes, which test condition, and the probable cause. This list is for 1991-1995 Ford Explorers and Mazda Navajos. May also relate to other vehicles.

And yes, I hand typed all of this.

Order goes:
Code, Test Condition, Probable Cause
example: 123 O Example for Post

2 DIGIT CODES

11 O,C,R Pass (separator code)
12 R RPM not within Self-test upper limit
13 R RPM not within Self-test lower limit
14 C Profile Ignition Pick-up circuit fault
15 O Read Only Memory test failed
15 C Keep Alive Memory test failed
16 R RPM to low to perform O2 sensor/fuel test
18 C Loss of TACH input to PCM; SPOUT circuit grounded
18 R SPOUT circuit open
19 O Failure in EEC reference voltage
21 O,R Coolant Temperature Sensor out of range
22 O,C Manifold Absolute/Baro Pressure Sensor out of range
23 O,R Throttle Position Sensor out of range
24 O,R Intake Air Temperature sensor out of range
26 O,R Mass Air Flow Sensor out of range
29 C No input from Vehicle Speed Sensor
31 O,C,R EGR Vavle Position Sensor out of range (low)
32 O,C,R EGR valve not seated; closed voltage low
33 C,R EGR valve not opening; Insufficient flow detected
34 O,C,R EGR Valve Pressure Transducer/Position Sensor sonic voltage above closed limit
35 O,C,R EGR Vavle Pressure Transducer/Position Sensor voltage out of range (high)
41 R Heated Oxygen Sensor circuit indicates system lean, right side
41 C No Heated Oxygen Sensor switch detected, right side
42 R Heated Oxygen Sensor circuit indicates system rich, right side
44 R Secondary Air system inoperative, right side
45 R Secondary Air upstream during self-test
45 C Distributorless Ignition System (DIS) coil pack circuit failure
46 R Secondary Air not by-passed during Self-test
51 O,C Cooland Temperature sensor circuit open
53 O,C Throttle Position sensor out of range (high)
54 O,C Intake Air Temperature sensor circuit open
56 O,C Mass Air Flow sensor out of range (high)
61 O,C Coolant Temperature sensor circuit grounded
63 O,C Throttle Position sensor circuit out of range (low)
64 O,C Intake Air Temperature sensor circuit grounded
66 C Mass Air Flow sensor circuit out-of-range (low)
67 O Neutral Drive Switch circuit open
72 R Insufficient Mass Air Flow change during Dynamic Response Test
73 R Insufficient Throttle Position output during Dynamic Response Test
74 R Brake On/Off switch failure
75 R Brake On/Off circuit failure
77 R Wide Open Throttle not sensed during Self-test
79 O Air conditioning on during self-test
81 O Secondary Air Injection Diverter (AIRD) circuit failure
82 O Secondary Air Injection Bypass (AIRB) circuit failure
84 O EGR Vacuum Regulator circuit failure
85 O Canister Purge circuit failure
87 O,C Primary Fuel Pump circuit failure
91 R Heated Oxygen sensor indicates system lean, left side
91 C No heated oxygen sensor switching indicated, left side
92 R Heated oxygen sensor indicates system rich, left side
94 R Torque Converter Clutch (TCC) solenoid circuit failure
95 O,C Fuel Pump circuit open, PCM to motor
96 O,C Fuel Pump circuit open, Battery to PCM
98 R Hard Fault Present

3 DIGITS CODES

111 O,C,R Pass
112 O,R Intake Air Temperature sensor circuit indicates circuit grounded/above 245 degrees F
113 O,R Intake Air Temperature sensor circuit indicates open circuit/below -40 degrees F
114 O,R Intake Air Temperature sensor out of self-test range
116 O,R Coolant Temperature sensor out of self-test range
117 O,C Coolant Temperature circuit below minimum voltage/indicates above 245 degrees F
118 O,C Coolant Temperature sensor circuit above maximum voltage/indicates below -40 degrees F
121 O,C,R Throttle Position sensor out of self-test range
122 O,C Throttle Position sensor below minimum voltage
123 O,C Throttle Positino sensor above maximum voltage
124 C Throttle Position Sensor voltage higher than expected
125 C Throttle Position Sensor voltage lower than expected
126 O,C,R MAP/BARO sensor higher than expected
128 C MAP Sensor vacuum hose damaged or disconnected
129 R Insufficient Manifold Absolute Pressure/Mass Air Flow change during Dynamic Response Check
136 R Heated oxygen sensor indicates lean condition, left side
137 R Heated oxygen sensor indicates rich condition, left side
139 C No heated oxygen sensor switching detected, left side
144 C No heated oxygen sensor switching detected, right side
157 R,C Mass Air Flow Sensor below minimum voltage
158 O,C,R Mass Air Flow Sensor above maximum voltage
159 O,R Mass Air Flow Sensor out of self-test range
167 R Insufficient Throttle Position Sensor change during Dynamiic Response Check
171 C Heated Oxygen sensor unable to switch, right side
172 R,C Heated Oxygen sensor indicates lean condition, right side
173 R,C Heated oxygen sensor indicates rich condition, right side
174 C Heated oxygen sensor switching slow, right side
175 C Heated oxygen sensor unable to switch, left side
176 C Heated oxygen sensor indicates lean condition, left side
177 C Heated oxygen sensor indicates rich condition, left side
178 C Heated oxygen sensor switching slow, left side
179 C Adaptive Fuel lean limit reached at part throttle, system rich, right side
181 C Adaptive Fuel rich limit reached at part throttle, right side
182 C Adaptive Fuel lean limit reached at idle, right side
183 C Adaptive Fuel rich limit reached at idle, right side
184 C Mass Air Flow higher than expected
185 C Mass Air Flow lower than expected
186 C Injector Pulse-width higher than expected
187 C Injector Pulse-width lower than expected
188 C Adaptive Fuel lean limit reached, left side
189 C Adaptive Fuel rich limit reached, left side
211 C Profile Ignition Pick-up circuit fault
212 C Ignition module circuit failure/SPOUT circuit grounded
213 R SPOUT circuit open
214 C Cylinder Identification (CID) circuit failure
215 C PCM detected coil 1 primary circuit failure
216 C PCM detected coil 2 primary circuit failure
217 C PCM detected coil 3 primary circuit failure
218 C Loss of ignition diagnostic monitor (IDM) signal - left side (dual plug EI)
222 C Loss of ignition diagnostic monitor (IDM) signal - right side (dual plug)
224 C PCM detected coil 1,2,3 or 4 primary circuit failure (dual plug EI)
225 C Knock sensor not detected during dynamic response test KOER
226 O Ignition Diagnostic Module (IDM) signal not received (EI)
232 C PCM detected coil 1,2,3 or 4 primary circuit failure (EI)
311 R Secondary Air system inoperative, right side
312 R Secondary Air not by-passed
313 R Secondary Air inoperative, left side
327 O,C,R EGR Valve Pressure Transducer/Position Sensor circuit below minimum voltage
328 O,C,R EGR vavle position sensor voltage below closed limit
332 C,R EGR vavle opening not detected
334 O,C,R EGR valve position sensor voltage above closed limit
335 O EGR Sensor voltage out-of-range
336 R EGR circuit higher than expected
337 O,C,R EGR Valve Pressure Transducer/Position sensor circuit above maximum voltage
341 O Octane adjust service pin open
411 R Unable to control RPM during Low RPM Self-test
412 R Unable to control RPM during High RPM Self-test
452 C No input from Vehicle Speed Sensor
511 O Read only Memory test failed - replace PCM
512 C Keep Alive Memory test failed
513 O Internal voltage failure in PCM
519 O Power steering pressure switch (PSP) circuit open (1993 and 1994 only)
521 R Power steering pressure switch (PSP) circuit did not change states (1993 and 1994 only)
522 O Manual lever Position (MLP) sensor circuit open/vehicle in gear
528 O Clutch pedal position (CPP) circuit failure
536 C,R Brake ON/OFF (BOO) circuit failure/not activated during the KOER
538 R Insufficient change in RPM/operator error in Dynamic Response Check
538 R Invalid cylinder balance teset due to throttle movement during test (1995 models)
538 R Invalid cylinder balance test due to CID circuit failure (1995 models)
539 O Air conditioning on during Self-test
542 O,C Fuel Pump circuit open; PCM to motor
543 O,C Fuel Pump circuit open; Battery to PCM
551 O Idle Air Control (IAC) circuit failure KOEO
552 O Air Management 1 circuit failure
552 O Secondary Air Injection Bypass (AIRB) circuit failure
553 O Secondary Air Injection Diverter (AIRB) circuit failure
556 O,C Primary Fuel Pump circuit failure
558 O EGR Vacuum Regulator circuit failure
565 O Canister Purge circuit failure
566 O 3-4 shift solenoid circuit failure KOEO (A4LD Transmission)
569 O Auxiliary Canister Purge (AUX-CANP) circuit failure
617 C 1-2 Shift error
618 C 2-3 Shift error
619 C 3-4 Shift error
621 O,C Shift Solenoid (SS 1) circuit failure KOEO
622 O Shift Solenoid 2 (SS2) circuit failure KOEO
624 O,C Electronic Pressure Control (EPC) circuit failure
625 O,C Electronic Pressure Control (EPC) driver open in PCM
626 O Coast Clutch Solenoid (CCS) circuit failure KOEO
628 C Excessive converter clutch slippage
629 O,C Torque Converter Clutch (TCC) solenoid circuit failure
631 O Transmission Control Indicator Lamp (TCIL) circuit failure KOEO
632 R Transmission Control Switch (TCS) circuit did not change states during KOER
633 O 4X4L switch closed during KOEO
634 O,C,R Manual Lever Position (MLP) sensor voltage higher or lower than expected
636 O,R Transmission Fluid Temp (TFT) higher or lower than expected
637 O,C Transmission Fluid Temp (TFT) sensor circuit above maximum voltage/ -40F (-40C) indicated/circuit open
638 O,C Transmission Fluid Temp (TFT) sensor circuit below minimum voltage/ 290F (143C) indicated/circuit shorted
639 C,R Insufficient input from Trnamission Speed Sensor (TSS)
641 O Shift Solenoid 3 (SS3) Circuit Failure KOEO
643 O Coast Clutch Solenoid (CCS) circuit failure KOEO
652 O Torque Converter Clutch (TCC) solenoid circuit failure
654 O Transmission Range (TR) sensor not indicating PARK during KOEO
655 O Transmission Range (TR) sensor not indicating NEUTRAL during KOEO
656 C Torque Converter Clutch continuous slip error
657 C Transmission fluid temperature (TFT) overheating
667 C Transmission range (TR) circuit voltage above minimum voltage
668 C Transmission range (TR) circuit voltage above maximum voltage
691 C 4X4 LOW switch open or short circuit present (1995 models)
692 C Transmission state does not match calculated ratios (1995 models)
998 O Hard Faul Present


*O=Key On, Engine Off; C=Continuous Memory; R=Engine running

**November 2, 12:46PM. Finally Done. Please make good use of this, my wrists and fingers are all ready in bad condition from to many computer games.





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I haven't been on this forum in a while and I'm trying to work my way back into it. I'm going for Mod or bust!
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1991 Nissan 240sx Drift Pig
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Last edited by Blacksheep Josh; 11-02-2008 at 11:49 AM. Reason: DONE!
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Old 11-01-2008, 04:55 AM   #2
wood1
North of Edmonton
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Excellent list Josh. No doubt will become a sticky...




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Old 11-01-2008, 11:05 AM   #3
Blacksheep Josh
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Statesboro, GA
 
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Yeah, I'm working through it. I'm 21 years old with what feels like the beginning of arthritis or carpel tunnel. Trying to get done at least half a page at a time.




__________________
I haven't been on this forum in a while and I'm trying to work my way back into it. I'm going for Mod or bust!
"Thunder" Registry R.I.P. 2005-2012
2001 Ford Ranger Edge SLAMMED)
1991 Nissan 240sx Drift Pig
"You can hear me when I'm coming" - Yung Joc
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Old 11-01-2008, 10:25 PM   #4
Blacksheep Josh
Slinky+Escalator=Fun
Statesboro, GA
 
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1993 Ford Explorer XLT
 
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The list will be finished first thing when I wake up tomorrow. My hands have been hurting/tingling a lot lately... trying to give them a rest.




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I haven't been on this forum in a while and I'm trying to work my way back into it. I'm going for Mod or bust!
"Thunder" Registry R.I.P. 2005-2012
2001 Ford Ranger Edge SLAMMED)
1991 Nissan 240sx Drift Pig
"You can hear me when I'm coming" - Yung Joc
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Old 11-02-2008, 11:47 AM   #5
Blacksheep Josh
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Statesboro, GA
 
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1993 Ford Explorer XLT
 
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IT'S DONE!!!

-Josh




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I haven't been on this forum in a while and I'm trying to work my way back into it. I'm going for Mod or bust!
"Thunder" Registry R.I.P. 2005-2012
2001 Ford Ranger Edge SLAMMED)
1991 Nissan 240sx Drift Pig
"You can hear me when I'm coming" - Yung Joc
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Old 01-14-2009, 07:34 PM   #6
Amopower
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Is there another thread somewhere on how to read the codes? Are these ODB I vehicles, EEC IV, etc? I have a few code readers.
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Old 04-27-2009, 10:29 AM   #7
BrooklynBay
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Check these sticky threads:
http://www.explorerforum.com/forums/...d.php?t=160035
http://www.explorerforum.com/forums/...d.php?t=147734
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Old 02-21-2012, 09:52 PM   #8
the manzo
1993 ford explorer xlt
 
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Exclamation error codes

hi i have engine codes: 335, 124, 327, 332.

how can i repair these correctly?

thank you
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