Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Normal Operation and Fault Conditions
With the ignition ON, the SASM sends messages to the GWM over the HS-CAN2 , the GWM relays thesemessages to the ABS module over the FD-CAN . If the ABS module does not receive these messageswithin the specified time frame, the ABS module sets Diagnostic Trouble Codes (DTCs). This can be dueto a steering angle sensor failure, a circuit failure on the HS-CAN or an excessive load on the network. Forinformation 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 | Description | Fault Trigger Condition |
|---|---|---|
| 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, acircuit failure on the HS-CAN or an excessive load on the network. The SASM is also known as the SCCM . |
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.