U0140

U0140-LOST COMMUNICATION WITH BODY CONTROL MODULE





For a complete wiring diagram Consult Diagrams/Electrical.

- 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.





Refer to Communications Test for this DTC and/or Manufacturer Code Charts for diagnostic procedures and for further possible causes.

Diagnostic Test

1. 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.

Ignition on, engine not running.
With a scan tool, select View DTCs.
Is the status Active for this DTC?

Yes

- Refer to Communications Test for this DTC and/or Manufacturer Code Charts for diagnostic procedures and for further possible causes.

No

- Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure.Checking For An Intermittent DTC
- Perform the PCM Verification Test Ver. 1Powertrain Verification Test