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.
Perform the Diagnostic Repair Verification
- 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)
- Underhood Electrical Center or Junction Block Replacement