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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.8L - Introduction (2 Of 2) >> Repair Instructions >> Ignition Control Module Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: View Of ICM & Bracket
    GM1693880Courtesy of GENERAL MOTORS CORP.
  1. Place the ICM onto the bracket.
    2. Fig 2: Identifying Ignition Coil & Bolts
    GM1693822Courtesy of GENERAL MOTORS CORP.
  2. Install the ignition coils to the ICM.
  3. Install the ignition coil bolts.

    Tighten:  Tighten the bolts to 4.5 N.m (40 lb in).

    4. Fig 3: Identifying ICM bracket
    GM1693837Courtesy of GENERAL MOTORS CORP.
  4. Install the ICM bracket onto the studs.
  5. Install the ICM bracket nuts.

    Tighten:  Tighten the nuts to 50 N.m (37 lb ft).

    6. Fig 4: Identifying ICM wiring harness ground
    GM1686625Courtesy of GENERAL MOTORS CORP.
  6. Install the ICM wiring harness ground (2) onto the stud.
  7. Install the ICM wiring harness ground nut (1).

    Tighten:  Tighten the nut to 30 N.m (22 lb ft).

    8. Fig 5: Identifying Spark Plug Wires
    GM1693864Courtesy of GENERAL MOTORS CORP.
  8. Connect the rear spark plug wires (1) to the ignition coils.
  9. Connect the front spark plug wires (2) to the ignition coils.
    10. Fig 6: Identifying Ignition Control Module Wiring Harness Electrical Connector
    GM1686624Courtesy of GENERAL MOTORS CORP.
  10. Install the ICM wiring harness electrical connector.
  11. Tighten the bolt (2) securing the ICM wiring harness electrical connector.
  12. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  13. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  14. Refer to Control Module References for programming and setup information.
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