Pinpoint Test J: Abs Module Communication Concern With SASM: Notes
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
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