Diesel

U0103-LOST COMMUNICATION WITH ELECTRIC GEAR SHIFT MODULE

For a complete wiring diagram Consult Diagrams/Electrical

- When Monitored:
Continuously while the system is active.

- Set Condition:
The ECM doesn't receive a Bus Message from the Electric Gear Shift Module.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.Initial Inspection and Diagnostic Overview

Diagnostic Test

1. DTC IS ACTIVE
Ignition on, engine not running.
With the scan tool, Clear DTCs in the Engine Control Module (ECM).
Monitor the scan tool for at least two minutes.
Cycle the ignition key off and on several times, leaving the ignition on for at least 10 seconds at a time.
Start the engine.
Allow the engine to reach normal operating temperature.
With the 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.Intermittent Condition