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[whitejesse78]

I have a 2018 gti, yesterday I used it to boost another vehicle drove it home everything was fine I wake up this morning and started every sensor on the dash lit up airbag breaks for an assist park assist everything what can I do?


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[Tooly]

When you boosted the other vehicle, did you hook both the positive and negative clamps directly to the battery in your car? For the negative you're supposed to attach to the remote post by the firewall or you can cause issues to your car. Do you have access to VCDS or OBD11 to scan your car for fault codes?

[whitejesse78]

I have a jb4 with internal code reading and it did show codes p0504, P0000, P01100


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[whitejesse78]

And when I boosted I went battery direct. I didn't see that post till after


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[Tooly]

There is a battery control module attached to the negative terminal of the battery which is connected to the CAN gateway. Maybe that's what is giving you issues? Have you cleared the codes with any success?

[whitejesse78]

Yes the jb4 has a code clearing option but it doesn't clear these lights I believe it's more generated for check engine codes


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[whitejesse78]

Ok problem solved!! Was a bad ground from the jb4 install, was draining the battery and caused the cat to go into safe mode shutting down all assist functions


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