LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2008 >> HHR LS, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Controls And Fuel - 2.4L - Introduction (2 Of 2)) >> Repair Instructions >> Engine Control Module Replacement >> Installation Procedure
September 30: LEMON manuals is back up on a temporary server! Slowness is possible

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: ECM Retaining Tabs
    GM1639229Courtesy of GENERAL MOTORS CORP.
    NOTE: Control module damage may result when the metal case contacts battery voltage. DO NOT contact the control module metal case with battery voltage when servicing a control module, using battery booster cables or when charging the vehicles battery.
  1. Slide the ECM (1) into the ECM/TCM bracket until the retaining tabs (2) engage the ECM.
    2. Fig 2: ECM Engine Harness Electrical Connector
    GM1639228Courtesy of GENERAL MOTORS CORP.
  2. Connect the engine harness electrical connectors (1, 2) to the ECM.
    3. Fig 3: ECM Body Harness Electrical Connector
    GM1639226Courtesy of GENERAL MOTORS CORP.
  3. Connect the body harness electrical connector (1) to the ECM.
    4. Fig 4: ECM/TCM Cover
    GM1631889Courtesy of GENERAL MOTORS CORP.
  4. Install the ECM/TCM cover.
  5. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  6. Program the ECM. Refer to Control Module References .
scientia non olet · About LEMON Manuals