Totally Integrated Power Module (TIPM)

U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM)







- When Monitored:
With the ignition on.

Battery voltage between 10 and 16 volts.

Ignition Off Draw (IOD) fused installed.

Totally Integrated Power Module (TIPM) is configured correctly.

- Set Condition:
Bus messages not received from the TIPM for approximately two to five seconds.





1. 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.

1. With the scan tool, read active DTCs.

Is this DTC active?

Yes

- Go To 2

No

- Stored Lost Communication DTCs Perform the STORED LOST COMMUNICATION DTCS diagnostic procedure.

2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS
1. 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 and perform the appropriate diagnostic procedure.

No

- Go To 3

3. VERIFY THE TIPM IS ACTIVE ON THE BUS
1. Turn the ignition on.
2. With the scan tool, select Network Diagnostics.
3. Verify the TIPM is active on the bus.

Is the TIPM active on the bus?

Yes

- Go To 4

No

- No Response From TIPM (Totally Integrated Power Module) Perform the NO RESPONSE FROM TIPM diagnostic procedure.

4. CHECK FOR ADDITIONAL COMMUNICATION RELATED DTCS
1. With the scan tool, select Network Diagnostics.

Is there more than one module with active DTCs "Logged Against" the TIPM?

Yes

- Replace/update the TIPM.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace/update the module that set this DTC
- Perform the appropriate verification test for the module being replaced. Verification Tests If there is no verification test for the associated module perform the BODY VERIFICATION TEST. Body Verification Test.