I have codes C0040 and C0245. There’s so many different answers online.
What is your question?
On my 2006 Pontiac Grand Prix GT, I have codes C0040 (Right Front Wheel Speed Sensor Malfunction) and C0245 (EBCM Control Valve Circuit).
They used to come on every once in a while, however over time they started coming on every time I drove the car. Especially when I turn the steering wheel right, they’re guaranteed to come on.
I’ve seen so many different things online about what it could be and I just want to know where to start and work towards.
I’ve seen to just replace the wheel speed sensor, the harness, the wheel bearing/hub, the abs module. I just need some guidance.
How long has your 2006 Pontiac Grand Prix had this problem?
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I know it's really difficult sometimes, but hands-on inspection by a professional is needed. The codes don't tell anything when you don't have a physical inspection to go along with it, perhaps also with a digital voltmeter/ohmmeter. It's too hard to know what's going on, and the reason there is no internet answers is because -- there are too many variables to know what's happening for your particular vehicle and concern.
My gut feeling - which is only that - would suggest that something is happening with the wiring to the right front speed sensor when you make the right turn, due to stress on the harness. This means nothing without inspection, so seek local guidance near you.
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