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.
- With the scan tool, read active DTCs.
Is this DTC active?
Yes
- Go To 2
No
- Refer to STORED LOST COMMUNICATION DTCS and perform the STORED LOST COMMUNICATION DTCS diagnostic procedure.
- With the scan tool, read active DTCs.
- CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS
- With the scan tool, read all active DTCs from all modules.NOTE:
Check for TIPM configuration, CAN 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
- Go to DTC INDEX and perform the appropriate diagnostic procedure.
No
- Go To 3
- With the scan tool, read all active DTCs from all modules.
- VERIFY THE TIPM IS ACTIVE ON THE BUS
- Turn the ignition on.
- With the scan tool, select Network Diagnostics.
- Verify 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 NO RESPONSE FROM TIPM diagnostic procedure.
- CHECK FOR ADDITIONAL COMMUNICATION RELATED DTCS
- With the scan tool, select Network Diagnostics.
Is there more than one module with active DTCs "Logged Against" the TIPM?
Yes
- Replace/update the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- Replace/update the module that set this DTC in accordance with the Service Information
- Perform the appropriate verification test for the module being replaced. If there is no verification test for the associated module perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
- With the scan tool, select Network Diagnostics.