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Thread: Collision sensor warning after disconnecting battery

  1. #1
    Junior Member
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    May 2019
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    Collision sensor warning after disconnecting battery

    Hi guys, I ran into a small issue after disconnecting my battery while installing afe scorcher chip. I think I connected all the sensors properly and didn't damage anything while working under the hood. After connecting everything back and starting the car, I've got this nasty message saying "check forward collision system" and ABS light gone off. I believe this happened due to battery disconnect?
    PS I can feel a great difference in power with the new chip lol.
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  3. #2
    Junior Member
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    Great, not a CEL is on also..

  4. #3
    Junior Member
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    Started the car this morning and the FCA error was gone, but the CEL is still there. Will reconnect everything after work, see if it it goes away..

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  6. #4
    Junior Member misnblu's Avatar
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    Quote Originally Posted by Duercos View Post
    Started the car this morning and the FCA error was gone, but the CEL is still there. Will reconnect everything after work, see if it it goes away..
    Before you do that just disconnect your battery, step on the brake pedal to discharge any capacitors in the system and this should clear your CEL code.

    Do a couple of drive cycles to make sure all is ok.
    Good luck.

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