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Re: 2002 Passat won't start
We had the same problem. It was an expensive fix--there apparently was a problem with the onboard computer that would periodically lock out the ignition circuit. Felt just like a bad starter solenoid--but the part cost $800, plus labor, to replace. Ouch.
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if u unplug your battery for acouple hours it will reset youre ecu/cpu. (everything) does it turn over? or absolutly nothing? if nothing sometimes ur battery loses so many electrolytes it can't retain a charge therefore jumping won't help. new battery first step! local junkyards probably have a good battery for $20. Let me know if this helps.
Passats can be reset if the radio is pulled out and the fuse on the back is removed. Wait for 2 mins, reinsert the fuse and turn the radio on. If this doesn't work, please take it to the dealer for the unlocking of the code, for which he may charge you some fee.
it sounds like your computer went bad, somethings do not go to the computer like the radio and lights but all the sensors, ignition system, and locks witch im going to guess that you have a car alarm. if not even thow the computer tells all the locks to lock with one push of a button. you would have to take it to a garage theres a chip that has to be removed and put in the other inless the chip is the promblom but unlikely