Programming Immobilizer System Components: Notes
IMPORTANT:
When replacing a body control module (BCM) with an GM Service Parts Operation (SPO) replacement part, set up the replacement BCM prior to the 10-Minute Relearn Procedure or the 30-Minute Relearn Procedure. Refer to Body Control Module Programming and Setup
.
IMPORTANT:
- When replacing a BCM with an GM SPO replacement part, the module will learn the keys immediately. The existing powertrain control module (PCM) must learn the new fuel continue password when you replace the BCM.
- When replacing a PCM with a GM SPO replacement part, the new PCM will learn the incoming fuel enable password immediately after programming and upon receipt of a password message. A PCM which had been installed in another vehicle would have learned the fuel enable password of the other vehicle's BCM. Perform either the 10-Minute Relearn Procedure or the 30-Minute Relearn Procedure to learn the fuel enable password of the current vehicle's BCM.
- When performing either relearn procedure, all previously learned keys will be erased from the BCM memory.
- Additional keys may be learned. Refer to Adding Keys (Domestic) or Adding Keys (Export) .