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.
Pinpoint Test C: SASM DTC C1B00:56: Notes
- Normal Operation and Fault Conditions
The SASM is self-monitoring and capable of setting Diagnostic Trouble Codes (DTCs) to alert of potential internal errors. When the Steering Wheel Angle Trim routine is carried out, the SASM stores this information and shares this information with the ABS module. The ABS module calculates a steering angle offset based on wheel speed sensor information. If the offset is too great when compared to the SASM provided steering angle, the ABS module sends a message to the SASM and the SASM sets a DTC.
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition SASM C1B00:56 Steering Angle Sensor: Invalid/Incompatible Configuration This DTC sets if the ABS steering wheel angle trim offset is greater than 15 degrees. Possible Sources
- Steering angle sensors have not been trimmed
- ABS module has not been calibrated
Visual Inspection and Pre-checks
- Using a diagnostic scan tool, carry out the Steering Wheel Angle Trim routine and then the ABS Calibration routine.
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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.