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Home › Hummer › 2009 › H3 Alpha › Repair and Diagnosis › Engine Performance › System › Engine Controls And Fuel - 5.3L - DTC P0315 To DTC P064A › DTC P0685 or P0690 › Repair Procedures

Repair Procedures

Engine Control Module Programming and Setup (V8) or Engine Control Module Programming and Setup (LLR)
Engine Control Module Replacement
Relay Replacement (Attached to Wire Harness) or Relay Replacement (Within an Electrical Center)