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P1631 Diagnostic Trouble Code Discussion for October 2005

Theft Deterrent - Start Enable Signal Not Correct

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Trouble Ticket Help Requests for DTC P1631
Help Request Posted
2002 Chevrolet Silverado 2500 HD 6.6L MIL Lamp on, ABS and BRAKE lites VIN: 1GCHK23132
P1631: Theft Deterrent - Start Enable Signal Not Correct. ... positive battery cable which welded itself to the transmission cooler lines just ahead of the starter. The current flow was so high that one of the negative cables actually caught fire. Obviously, the truck was towed to us and by the time we got the correc...
October 20, 2005