Occupant Restraint Controller (ORC)

U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM)







- When Monitored:
With the ignition on. Battery voltage between 10 and 16 volts. Front Control Module is configured correctly.

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





1.
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Occupant Restraint Controller (ORC) Verification Test.
VERIFY 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

- Perform the Stored Lost Communication DTCs diagnostic procedure. Stored Lost Communication DTCs

2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS
1. With the scan tool, read all active DTCs from all modules.

NOTE: Check for FCM 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 THAT THE FCM IS ACTIVE ON THE BUS
1. Turn the ignition on.
2. With the scan tool, select Network Diagnostics.
3. Verify that the FCM is active on the bus.

Is the FCM active on the bus?

Yes

- Go To 4

No

- No Response From FCM (Front Control Module) Perform the No Response from FCM 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 FCM?

Yes

- Replace/update the Front Control Module (FCM).
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace/update the module that set this DTC.
- Perform the appropriate VERIFICATION TEST. Verification Tests