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.
Steering wheel angle sensor
The steering wheel angle sensor is incorporated with the SRS contact reel, which in turn is installed on the steering wheel module. The steering wheel angle sensor is equipped with a disc with two code paths. Two circuits with light diodes read off a code path each. One circuit measures the steering angle up to 360 degrees and the other records how many complete turns the steering wheel has turned. Both circuits measure within +/- 700 degrees with a precision of 4.5 degrees. This information is transmitted to the control module for the Steering wheel angle sensor as digital signals.
Due to the reliance of the DSTC (Dynamic stability and traction control) on information from the steering angle sensor it is extremely important that the contact reel has been centered correctly and that only an original Volvo steering wheel is used.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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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