Pinpoint Test I : U0138:00: Notes
Refer to Wiring Diagram Four Wheel Drive Systems for schematic and connector information.
Normal Operation
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0138:00 | Lost Communication with All Terrain Control Module | Sets in continuous memory in the TCCM if data messages received from the Terrain Management module through the GWM are missing for 5 seconds or longer. |
Possible Sources
- Communication concern
- GWM concern
- TCCM
- All-Terrain Control Module