U0140

U0140-LOST COMMUNICATION WITH BODY CONTROL MODULE (TIPM)

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

- 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.





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

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

No

- Perform the CHECKING FOR AN INTERMITTENT DTC diagnostic procedure. Intermittent Condition Test.
- Perform the PCM Verification Test. Powertrain Verification Test.