Thread: DTC C0040 RF Wheel Speed Circuit Malfunction

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  1. #1 DTC C0040 RF Wheel Speed Circuit Malfunction 
    paulk
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    Default 01-20-2011
    I have a 2001 Grand Prix SE, 3.1 with DTC C0040. If I reset the code, it comes back. The RF wheel sensor appears to be OK. Does anybody have schematics or detailed instructions for troubleshooting this and/or wringing out the wiring? Also the wheel speed indicates 2 MPH on the other 3 wheels when I'm sitting still! Any suggestions?
    Thanks
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  2. #2 Re: DTC C0040 RF Wheel Speed Circuit Malfunction 
    TheOtherNick
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    Default 01-20-2011
    Sounds like a bad sensor replace it.
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  3. #3 Re: DTC C0040 RF Wheel Speed Circuit Malfunction 
    nfloyd2006
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    Default 01-20-2011
    yep. replace the hub. i just did one today that had the same code and a new hub fixed the problem.
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