U0140

U0140-LOST COMMUNICATION WITH BODY CONTROL MODULE



- When Monitored:
Ignition run time is greater than 1 second. Battery voltage between 9 and 16 volts.

- Set Condition:
The PCM doesn't receive a FCM message over the CAN C bus for 7 consecutive seconds. The circuit is continuously monitored.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Pre-Diagnostic Troubleshooting Procedure.
ACTIVE DTC

NOTE: For vehicle communication problems, use the scan tool to refer to the Network Review Screen. The screen depicts a high level view of the vehicle network. Fault and problem areas appear in red. Selecting any of the network components allows access to the source of the problem.

1. Ignition on, engine not running.
2. With a scan tool, select View DTCs.

Is the status Active for this DTC?

Yes

- Testing and Inspection for diagnostic procedures and for further possible causes.

No

- Refer to the INTERMITTENT CONDITION Diagnostic Procedure. Intermittent Condition Test.