Diagnostic Aids
WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. 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 password from the theft deterrent module. If the TDM is replaced, the PCM must be placed in password learning mode to relearn the new password. Once learned, the password becomes permanent information that remains in the PCM. The loss of PCM battery or ignition voltage does not affect the programmed password information. Refer to Programming Immobilizer System Components (Domestic) .
DTC P1630
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Immobilizer Schematics Connector End View Reference: Immobilizer Connector End Views |
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| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Programming Immobilizer System Components (Domestic) | Go to DIAGNOSTIC SYSTEM CHECK - VEHICLE |