Diagnostic Test
- VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE:
Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding.
NOTE:Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing.
- Using the scan tool, read active DTCs.
Is this DTC active?
Yes
- Go To 2.
No
- Refer to DIAGNOSIS AND TESTING and perform the Stored Lost Communication DTCs diagnostic procedure.
- Using the scan tool, read active DTCs.
- CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS
- Using the scan tool, read all active DTCs from all modules.NOTE:
Check for TIPM configuration, CAN B or C hardware electrical, VIN Missing/Mismatch, battery or ignition related DTCs.
Does the scan tool display any active DTCs to the conditions listed above?
Yes
- Refer to DIAGNOSIS AND TESTING and perform the appropriate diagnostic procedure.
No
- Go To 3.
- Using the scan tool, read all active DTCs from all modules.
- VERIFY THAT THE TIPM IS ACTIVE ON THE BUS
- Turn the ignition on.
- Using the scan tool, select ECU View.
- Verify that the TIPM is active on the bus.
Is the TIPM active on the bus?
Yes
- Go To 4.
No
- Refer to DIAGNOSIS AND TESTING and perform the appropriate No Response from TIPM diagnostic procedure.
- CHECK FOR ADDITIONAL COMMUNICATION RELATED DTCS
- Using the scan tool, select Network Diagnostics and select Advanced.
Is there more than one module with active DTCs "Logged Against" the TIPM?
Yes
- Replace/update the Totally Integrated Power Module in accordance with the Service Information.
- Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
No
- Replace/update the module that set this DTC in accordance with the Service Information.
- Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
- Using the scan tool, select Network Diagnostics and select Advanced.