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Home › GMC › 2006 › Sierra 1500 HD, RWD › Repair and Diagnosis › Accessories & Equipment › Communication Devices › Programming And Setup - All Systems › Repair Instructions › Glow Plug Control Module (GPCM) Programming and Setup (RPO LLY) › GPCM Replacement

GPCM Replacement

If the glow plug controller (GPCM) is replaced, the Fuel Injector Flow Rate Programming must be performed. Refer to Fuel Injector Flow Rate Programming .