U0140

U0140-LOST COMMUNICATION WITH BODY CONTROL MODULE





For a complete wiring diagram, refer to the Wiring Information Electrical Diagrams.

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

- Set Condition:
The Powertrain Control Module (PCM) doesn't receive a Totally Integrated Power Module (TIPM) message over the CAN C bus for seven 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

- Totally Integrated Power Module (TIPM) Perform the U0141-Lost Communication with IPM (FCM/TIPM) diagnostic procedure.

No

- Perform the CHECKING FOR AN INTERMITTENT DTC diagnostic procedure. Checking for an Intermittent DTC.