U0141
U0141-LOST COMMUNICATION WITH FRONT CONTROL MODULE IPM (FCM/TIPM)
For a complete wiring diagram, refer to the Wiring Information.
- When Monitored:
With the ignition on.
Battery voltage between 10 and 16 volts.
Ignition Off Draw (IOD) fuse installed.
Totally Integrated Power Module (TIPM) is configured correctly.
- Set Condition:
Bus messages not received from the Totally Integrated Power Module (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.
NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing.
1. Using the scan tool, read active DTCs.
Is this DTC active?
Yes
- Go To 2
No
- Perform the Stored Lost Communication DTC diagnostic procedure Stored Lost Communication DTCs.
2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCs
1. 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
- Perform the appropriate diagnostic procedure.
No
- Go To 3
3. VERIFY THAT THE TIPM IS ACTIVE ON THE BUS
1. Turn the ignition on.
2. Using the scan tool, select ECU View.
3. Verify that the TIPM is active on the bus.
Is the TIPM active on the bus?
Yes
- Go To 4
No
- Perform the appropriate No Response from TIPM diagnostic procedure No Response From TIPM (Totally Integrated Power Module).
4. CHECK FOR ADDITIONAL COMMUNICATION RELATED DTCs
1. 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.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
No
- Replace/update the module that set this DTC.
- Perform the appropriate VERIFICATION TEST.