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.
Diagnostic trouble code (DTC) information
Condition
The steering wheel angle sensor is initialized when the steering wheel is moved at least 5° within a certain amount of time of the ignition being switched on.
Diagnostic trouble code (DTC) BCM-A030 is stored if the steering angle is not initialized after 2 minutes driving at a speed above 10 km/h.
The initialization can be run before the ignition is switched off even after diagnostic trouble code (DTC) BCM-A030 has been stored. The anti spin warning lamp then goes out. Diagnostic trouble code (DTC) BCM-0108 is also stored if the initialization is not completed before the ignition is switched off.
Substitute Value
- Active yaw control is blocked.
Possible Source
- The steering wheel angle sensor is uninitiated after two minutes driving above 10 km/h.
This diagnostic trouble code (DTC) is not due to an internal hardware fault in the Brake control module (BCM) and must not be remedied by replacing the control module.
Fault symptom[s]
- The anti-spin warning lamp is lit (up to and including 2002 model year)
- General yellow warning lamp lit (from model year 2003 inclusive)
- The traction control system does not function.
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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.
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