Normal Operation and Fault Conditions
With the ignition ON, the ATCM sends messages to the ABS module over the HS-CAN 2. If the ABS module does not receive these messages within a certain time frame (usually less than 1 second), the ABS module sets a DTCs. For information on the messages sent to the ABS module by the ATCM, refer to the Description and Operation in the Anti-Lock Brake System (ABS) and Stability Control article.
PPT BM ABS MODULE DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0138:00 | Lost Communication With All Terrain Control Module: No Sub Type Information | Sets when the ABS module does not receive any messages from the ATCM. |
| U0138:86 | Lost Communication With All Terrain Control Module: Signal Invalid | Sets when the ABS module is configured for one type of selectable drive mode switch and the ABS module receives a message for a different type of selectable drive mode switch. |
| U0138:87 | Lost Communication With All Terrain Control Module: Missing Message | Sets when the ABS module does not receive the 4x4 switch data message in the alloted time. |