My can can only reverse when I unplug the gear brain box but can drive with the brain box fixed

Asked by Guru9ZWXH Jun 06, 2017 at 05:27 PM about the 2002 Volkswagen Passat GLS V6

Question type: Maintenance & Repair

4 Answers
4,405

Christopher answered 6 years ago

Check for shorted or corroded wiring to the transmission control unit. Is water leaking jnto it?

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Deathjam4 answered 6 years ago

well if its wet your giving the water a open invitation to spark all over the place which will likely short out your computer tcu (transmission control unit) take it out let it dry then reseal the box and make sure the cables are not wet and try it out again.

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