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P1631 Diagnostic Trouble Code Discussion for August 2004

Theft Deterrent - Start Enable Signal Not Correct

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Trouble Ticket Help Requests for DTC P1631
Help Request Posted
1999 Pontiac Grand Am SE 2.4L No Start VIN: 1G2NE12T1X
P1631: Theft Deterrent Enable Signal Not Correct. On monday vehicle was towed in with crank and no start. Customer stated that security was flashing. When vehicle arrived confirmed all above. She also said this happened a few days earlier but was ok since. Scanner confirmed 2 codes for theft system. In the pr...
August 06, 2004