Hi,
Bought a vectra a couple of weeks ago. Whilst turning the steering wheel, the power assistance is on/off, making the steering feel notchy. When I first bought the car, the steering warning lamp was on, this was caused by the plug for the steering angle sensor on the steering rack not being connected. I re-connected the plug, cleared the fault codes & the warning lamp is now off, but the steering is still the same. There are no fault codes present for the steering or the CIM, but when I read the measuring blocks for the CIM the steering angle sensor shows 0 degrees all the time. Would this mean a faulty CIM or will the steering angle sensor need re-calibrating? Also, is there a steering angle sensor in the CIM itself, or is the one on the steering rack the only one?
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