Question about 2000 GMC Safari

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1999 GMC Safari Theftlock crazy...van won't start.

A friends van won't start. He parked it one day and the next the battery was dead. He went to charge it and immediatly after hooking up battery the theftlock sirens started going crazy and the van would not start. No click when ignition turned on but fuel pump engages...along with an unidentified buzzing from somewhere under the steering column. Cannot get code to deactivate the system, but i thnk maybe that there is an open in the circuit causing it to drain the battery and also keep it from starting. Problem is the wiring diagrams don't show the theftlock system wires fully nor tell how to disconnect it without causing a bigger problem. Any help would be appreciated.

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I had this problem, and ended up having to disconnect the theft system because I could no longer start the van.

Posted on Sep 01, 2009

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You have to take it to the dealer,ive tow a good
bunch of them in.many mac i know have to use a computer to fix the prolbem

Posted on Aug 02, 2009

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