LEMON Manuals: Even more car manuals for everyone
Home >> Hummer >> 2008 >> H3 Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 315 (Engine Control System & Fuel System - 5.3L - Introduction, Service & Repair) >> Repair Instructions >> Engine Control Module Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2009 GMC Canyon and 2009 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: ECM Connector & CPA Retainer
    GM1897080Courtesy of GENERAL MOTORS CORP.
  1. Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.
  2. Remove the windshield washer solvent container. Refer to Windshield Washer Solvent Container Replacement .
  3. Disengage the integral connector position assurance (CPA) retainer (1) on the body wiring harness electrical connector.
  4. Disconnect the body wiring harness electrical connector (2) from the ECM.
  5. Fig 2: ECM Connector
    GM1897083Courtesy of GENERAL MOTORS CORP.
  6. Disengage the integral CPA retainers on the engine wiring harness electrical connectors.
  7. Disconnect the engine wiring harness electrical connectors (2) from the ECM.
  8. Fig 3: ECM & Bracket Tabs
    GM1897085Courtesy of GENERAL MOTORS CORP.
  9. Lift up the ECM bracket tabs (2) and tilt the ECM (1) towards the front of the vehicle, removing the ECM (1).