Pinpoint Test T : U0138:00: Notes
Diagnostic Overview
U0138:00
Refer to Vehicle Dynamic Systems for schematic and connector information.
Normal Operation and Fault Conditions
With the ignition ON, the ATCM sends the ABS module messages over the HS-CAN. If these messages are missing for 5 seconds, the ABS module sets DTCs. For information on the messages sent to the ABS module from the ATCM, REFER to Anti-Lock Brake System (ABS) and Stability Control , Network Message Chart.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0138:00 | Lost Communication With All Terrain Control Module: No Sub Type Information | This DTC sets in continuous memory and on-demand if the "terrain mode actual" message is missing. |