Pinpoint Test J: Abs Module Communication Concern With SASM: Notes
Refer to MODULE COMMUNICATIONS NETWORK for schematic and connector information.
Normal Operation and Fault Conditions
With the ignition ON, the SASM sends messages to the GWM over the HS-CAN2, the GWM relays these messages to the ABS module over the FD-CAN. If the ABS module does not receive these messages within the specified time frame, the ABS module sets Diagnostic Trouble Codes (DTCs). This can be due to a steering angle sensor failure, a circuit failure on the HS-CAN or an excessive load on the network. For information on the messages sent to the ABS module by the SASM, 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 U0126:00 | Lost Communication With Steering Angle Sensor Module: No Sub Type Information | This DTC sets in the ABS module if any of the SASM messages are missing. This can be due to a SASM failure, a circuit failure on the HS-CAN or an excessive load on the network. The SASM is also known as the SCCM. |
Possible Sources
- Wiring, terminals or connectors
- Network communication concern
- SASM
- ABS module