Inspection and Verification
Verify the customer concern.
Visually inspect the following for obvious signs of electrical damage.
Visual Inspection Chart Electrical
Central junction box (CJB) fuse 26 (7.5A)
Circuitry
Parking aid sensors
Parking aid disable switch and LED
Parking aid speaker
Reversing lamps
If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
If the cause is not visusally evident, connect the diagnostic tool to the data link connector and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
check that the program card is correctly installed.
check the connections to the vehicle.
check the ignition switch position.
If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
SCP+, SCP-, UBP or ISP circuit fault; all electronic control units no response/not equipped, refer to Section 418-00.
No response/not equipped for parking aid module, Go To Pinpoint Test BC.
System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the parking aid module.
If the DTCs retrieved are related to the concern, go to the Parking Aid Module Diagnostic Trouble Code (DTC) Index.
If no DTCs related to the concern are retrieved, GO to Symptom Chart to continue diagnostics.
Parking Aid Module Diagnostic Trouble Code (DTC) Index DTC Description Source Action
B1299 Power Supply Sensor Circuit Short to Ground Parking Aid Module Go To Pinpoint Test BD.
B1342 ECU is Defective Parking Aid Module CLEAR the DTCs. REPEAT the parking aid module self-test. If DTC B1342 is retrieved again, INSTALL a new parking aid module; REFER to Parking Aid Module in this section. CLEAR all DTCs. REPEAT the self-test.
B2373 LED No. 1 Circuit Failure Parking Aid Module Go To Pinpoint Test BD.
B2477 Module Configuration Failure Parking Aid Module REFER to Section 418-00.
C1699 Left Rear Sensor Circuit Short to Battery Parking Aid Module Go To Pinpoint Test BD.
C1700 Left Rear Sensor Circuit Failure Parking Aid Module Go To Pinpoint Test BD.
C1701 Left Rear Sensor Fault Parking Aid Module CLEAN the rear bumper and sensors with high-pressure water. CLEAR the DTCs. REPEAT the self-test. If the DTC returns, INSTALL a new parking aid sensor; REFER to Parking Aid Sensor in this section. CLEAR all DTCs.
C1702 Right Rear Sensor Circuit Short to Battery Parking Aid Module Go To Pinpoint Test BD.
C1703 Right Rear Sensor Circuit Failure Parking Aid Module Go To Pinpoint Test BD.
C1704 Right Rear Sensor Fault Parking Aid Module CLEAN the rear bumper and sensors with high-pressure water. CLEAR the DTCs. REPEAT the self-test. If the DTC returns, INSTALL a new parking aid sensor; REFER to Parking Aid Sensor in this section. CLEAR all DTCs.
C1705 Left Rear Center Sensor Circuit Short to Battery Parking Aid Module Go To Pinpoint Test BD.
C1706 Left Rear Center Sensor Circuit Failure Parking Aid Module Go To Pinpoint Test BD.
C1707 Left Rear Center Sensor Fault Parking Aid Module CLEAN the rear bumper and sensors with high-pressure water. CLEAR the DTCs. REPEAT the self-test. If the DTC returns, INSTALL a new parking aid sensor; REFER to Parking Aid Sensor in this section. CLEAR all DTCs.
C1708 Right Rear Center Sensor Circuit Short to Battery Parking Aid Module Go To Pinpoint Test BD.
C1709 Right Rear Center Sensor Circuit Failure Parking Aid Module Go To Pinpoint Test BD.
C1710 Right Rear Center Sensor Fault Parking Aid Module CLEAN the rear bumper and sensors with high-pressure water. CLEAR the DTCs. REPEAT the self-test. If the DTC returns, INSTALL a new parking aid sensor; REFER to Parking Aid Sensor in this section. CLEAR all DTCs.
C1742 Rear Sounder Circuit Failure Parking Aid Module Go To Pinpoint Test BD.
C1743 Rear Sounder Circuit Short to Battery Parking Aid Module Go To Pinpoint Test BD.
C1748 Switch Input Circuit Short to Ground Parking Aid Module Go To Pinpoint Test BD.
C1920 Status LED No. 1 Circuit Short to Ground Parking Aid Module Go To Pinpoint Test BD.
Symptom Chart
Symptom Chart Condition Possible Sources Action
No communication with the parking aid module
Circuitry.
Central junction box fuse 26 (7.5A).
Parking aid module.
Go To Pinpoint Test BC.
Parking aid is inoperative
Circuitry.
Parking aid sensor.
Parking aid speaker.
Parking aid disable switch.
Parking aid module.
Go To Pinpoint Test BD.
Continuous or intermittent tone when no obstacles or fault codes are present (Certain obstacles may appear "stealthy" to the system, depending on geometric shape, size and material.)
Dirty or iced over parking aid sensor(s).
CLEAN the rear bumper and sensors with high-pressure water.
Parking aid sensor bezel(s) or parking aid sensor(s) locked into the rear bumper incorrectly.
INSTALL the parking aid sensor bezel(s) into the rear bumper correctly. INSTALL the parking aid sensor(s) into the parking aid sensor bezel(s) correctly.
Parking aid sensors are not aligned correctly.
CARRY OUT the azimuth check. REFER to Azimuth System Check Minimum Detectable Object Verification in this section.