Diagnostic Test
- ACTIVE DTC NOTE:
For vehicle communication problems, use the scan tool to refer to the Network Review Screen. The screen depicts a high level view of the vehicle network. Fault and problem areas appear in red. Selecting any of the network components allows access to the source of the problem.
- Ignition on, engine not running.
- With a scan tool, select View DTCs.
Is the status Active for this DTC?
Yes
- Go To 2.
No
- Refer to STANDARD PROCEDURE and perform the EPPM SYSTEM INTERMITTENT TEST diagnostic procedure.
- U0121-LOST COMMUNICATION WITH ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE ALSO SET
- With a scan tool, select View DTCs.
Do any of the following DTCS or any DTCS set, DTC U0121-LOST COMMUNICATION WITH ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE, U0416-IMPLAUSIBLE DATA RECEIVED FROM ESP set in the BCM?
Yes
- Refer to DIAGNOSIS AND TESTING and perform the appropriate diagnostic procedure.
No
- Replace and program the Electronic Pedestrian Protection Module (EPPM) in accordance with the Service Information. Refer to MODULE, ELECTRONIC PEDESTRIAN PROTECTION, REMOVAL .
- Refer to STANDARD PROCEDURE and perform the EPPM SYSTEM VERIFICATION TEST.
- With a scan tool, select View DTCs.