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Diagnostic Aids

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

A GM SPO replacement PCM is in a functional state to learn the fuel enable password from the BCM. If the BCM is replaced, the PCM must be placed in the password learning mode to relearn the new fuel enable password from the BCM. The loss of PCM battery or ignition voltage does not affect the programmed password information. Refer to Programming Theft Deterrent System Components .

DTC P1630

Step Action Yes No
Schematic Reference:  Theft Deterrent System Schematics  
Connector End View Reference:  Theft Deterrent System Connector End Views  
1 Did you perform the Diagnostic System Check - Vehicle? Go to Programming Theft Deterrent System Components  Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
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