Repair Procedures

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Engine Control Module Programming and Setup (Gasoline Engines) or Engine Control Module Programming and Setup (W/RPO LMM)
Engine Control Module Replacement
Relay Replacement (Attached to Wire Harness) or Relay Replacement (Within an Electrical Center)