Powertrain Control Module (PCM)

U0168-LOST COMMUNICATION WITH VEHICLE SECURITY CONTROL MODULE (WIN)





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

- When Monitored:
With the ignition on, the battery voltage between 9 and 16 volts and engine run time greater than three seconds.

- Set Condition:
The Powertrain Control Module (PCM) doesn't receive a bus message from the Vehicle Security Control Module (WIN) for a specific amount of time.





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.

NOTE: Check the IOD fuse before continuing. If the fuse is open, check the circuit for a short to ground.

1. Turn the ignition on.
2. With a scan tool, select View DTCs.

Is the status Active for this DTC?

Yes

- Perform the U0168-Lost Communication With Vehicle Security Control Module (WIN) diagnostic procedure. Totally Integrated Power Module (TIPM)

No

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