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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Mechanical - 3.6L - 2 Of 5) >> Off-Vehicle Repair Instructions (1 Of 4) >> Engine Wiring Harness Assembly Removal >> Left Side Harness Connections

Left Side Harness Connections

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Locating Right Torque Strut Bracket Bolts
    GM1414384Courtesy of GENERAL MOTORS CORP.
  1. Remove the right torque strut bracket bolts.
  2. Remove the right torque strut bracket.
    3. Fig 2: Identifying Engine Control Module (ECM) Ground Harness Terminal Screw
    GM1414397Courtesy of GENERAL MOTORS CORP.
  3. Remove the engine control module (ECM) ground harness terminal screw from the ECM lug.
    4. Fig 3: View Of Engine Wiring Harness From ECM Module
    GM1414390Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the engine wiring harness from the ECM module.
    5. Fig 4: Locating ECM Module Nuts
    GM1414386Courtesy of GENERAL MOTORS CORP.
  5. Remove the ECM module nuts.
  6. Remove the ECM module from the ECM bracket.
    7. Fig 5: Identifying ECM Bracket Bolts
    GM1414385Courtesy of GENERAL MOTORS CORP.
  7. Remove the ECM bracket bolts.
  8. Remove the ECM bracket.
    9. Fig 6: View Of Radiator Inlet Hose Support
    GM1414382Courtesy of GENERAL MOTORS CORP.
  9. Remove the radiator inlet hose support bolt.
  10. Remove the radiator inlet hose support.
    11. Fig 7: Engine Wiring Harness Bracket Bolts From Intake Manifold
    GM1414388Courtesy of GENERAL MOTORS CORP.
  11. Remove the engine wiring harness bracket bolts from the intake manifold.
    12. Fig 8: View Of Engine Wiring Harness ECM Ground Bolt
    GM1414424Courtesy of GENERAL MOTORS CORP.
  12. Remove the engine wiring harness ECM ground bolt from the left cylinder head.
    13. Fig 9: Locating Engine Wiring Harness Bracket Bolts
    GM1414403Courtesy of GENERAL MOTORS CORP.
  13. Remove the engine wiring harness bracket bolts from the front lower left side of the engine.
    14. Fig 10: Identifying Engine Wiring Harness From Left Camshaft Position Actuator Valves
    GM1414402Courtesy of GENERAL MOTORS CORP.
  14. Disconnect the engine wiring harness from the left camshaft position actuator valves.
    15. Fig 11: Engine Wiring Harness From Left Camshaft Position Sensors
    GM1414400Courtesy of GENERAL MOTORS CORP.
  15. Disconnect the engine wiring harness from the left camshaft position sensors.
    16. Fig 12: Engine Wiring Harness Ground Bolt
    GM1414398Courtesy of GENERAL MOTORS CORP.
  16. Remove the engine wiring harness ground bolt from the left cylinder head.
    17. Fig 13: Locating Engine Wiring Harness To Engine Coolant Temperature (ECT) Sensor
    GM1414399Courtesy of GENERAL MOTORS CORP.
  17. Slide the heat shield away from the engine coolant temperature (ECT) sensor in order to access the wiring harness connector.
  18. Disconnect the engine wiring harness from the ECT sensor.
    19. Fig 14: View Of Engine Wiring Harness From Generator
    GM1414392Courtesy of GENERAL MOTORS CORP.
  19. Disconnect the engine wiring harness from the generator.
  20. Disconnect the engine wiring harness from the A/C compressor.
    21. Fig 15: Locating Engine Wiring Harness From Left Knock Sensor
    GM1414404Courtesy of GENERAL MOTORS CORP.
  21. Disconnect the engine wiring harness from the left knock sensor.
    22. Fig 16: View Of Oil Pressure Sensor Wiring Harness
    GM1412135Courtesy of GENERAL MOTORS CORP.
  22. Disconnect the engine wiring harness from the oil pressure sender.
    23. Fig 17: Engine Wiring Harness From Starter Motor Solenoid
    GM1414401Courtesy of GENERAL MOTORS CORP.
  23. Disconnect the engine wiring harness from the starter motor solenoid.
    24. Fig 18: View Of Engine Wiring Harness From Fuel Injector Harness
    GM1414395Courtesy of GENERAL MOTORS CORP.
  24. Disconnect the engine wiring harness from the fuel injector harness.
    25. Fig 19: Engine Wiring Harness From Left Ignition Coils
    GM1414396Courtesy of GENERAL MOTORS CORP.
  25. Disconnect the engine wiring harness from the left ignition coils.
    26. Fig 20: Locating Engine Wiring Harness To Front Left Camshaft Cover
    GM1414393Courtesy of GENERAL MOTORS CORP.
  26. Disconnect the engine wiring harness from the front of the left camshaft cover.
    27. Fig 21: Identifying Engine Wiring Harness From Top Left Camshaft Cover
    GM1414394Courtesy of GENERAL MOTORS CORP.
  27. Disconnect the engine wiring harness from the top of the left camshaft cover.
    28. Fig 22: Engine Wiring Harness To Barometric (BARO) Sensor
    GM1414411Courtesy of GENERAL MOTORS CORP.
  28. Disconnect the engine wiring harness from the barometric (BARO) sensor.
    29. Fig 23: Identifying Engine Wiring Harness To Throttle Body Connector
    GM1414412Courtesy of GENERAL MOTORS CORP.
    NOTE: DO NOT use any mechanical device such as pliers or screwdrivers to disengage the connector. In order to prevent damage to the connector or harness wiring, both of the latches on the connector must be depressed with finger pressure only. When the latches are depressed the connector must then be pulled straight back without pulling on the wires in order to disengage. Failure to follow this procedure can lead to connector or wiring harness damage and failure.
  29. Disconnect the engine wiring harness from the throttle body connector.
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