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Home >> Pontiac >> 2001 >> Aztek Base, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics >> Diagnostic Tests >> DTC P1631: Theft Deterrent Start Enable Signal Not Correct >> Code Enable Criteria
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Code Enable Criteria

DTC will run when ignition is on and DTC will set when PCM detects an incorrect password from the theft deterrent control module.