Pinpoint Test Bx: Abs Module Communication Concern With AWD (All-Wheel Drive) Module
Normal Operation and Fault Conditions
With the ignition ON, the AWD module sends messages to the ABS module through the GWM over the HS-CAN 2. If the ABS module does not receive these messages within the specified time frame, the ABS module sets a DTC. This can be due to a AWD module failure, a circuit failure on the network or an excessive load on the network. For information on the messages sent to the ABS module by the AWD module, REFER to: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| ABS U011D:00 | Lost Communication With All Wheel Drive Control Module: No Sub Type Information | This DTC sets when the ABS module does not receive any messages from the AWD module. |
| ABS U041E:00 | Invalid Data Received From All Wheel Drive Control Module: No Sub Type Information | This DTC sets when the ABS module receives the AWD locking torque message with invalid data for more than the allotted time |
Possible Sources
- Network communication concern
- GWM
- AWD module