GPCM Replacement
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
If the glow plug controller (GPCM) is replaced, the following procedures must be performed.
- Fuel Injector Flow Rate Programming for fuel injector flow rate programming
- Service Programming System (SPS) for GPCM programming