GM Service Manual Online
For 1990-2009 cars only

Glow Plug Control Module Programming and Setup for Chevrolet Express 2006

Glow Plug Control Module Programming and Setup RPO LLY or LBZ

The following service procedures require either a programming or a setup event performed for a complete repair.

GPCM Replacement

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

GPCM Reprogramming

If the glow plug controller (GPCM) needs to be reprogrammed, refer to Service Programming System (SPS) .

Setup for Component Replacement

The replacement of some components will require a setup procedure for complete repair.

If any of the following components are replaced, the Fuel Injector Flow Rate Programming must be performed.

    • Fuel injector
    • Engine control module (ECM)
    • GPCM