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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 540 (Theft Deterrent System) >> Diagnostic Information and Procedures >> DTC P1631: PCM Did Not Receive A Valid Password >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.

The powertrain control module (PCM) did not receive a valid password before the fuel disable decision point was reached.

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