Ignition Control Module Replacement for Buick LeSabre 2005

1. Turn the ignition OFF.
2. Disconnect the 14-way connector from the ignition control module (ICM).
3. Disconnect the spark plug wires from the coil assemblies. Before removing the wires, note the position of the wires .



4. Remove the screws (1) that secure the coil assemblies (2) to the ICM (3).
5. Remove the coils (2) and the ICM (3) from the bracket.

1. Attach the coils (2) and the ignition control module (3) to the bracket.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the screws (1) that retain the ignition coils (2) and the ICM (3) to the bracket.

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

3. Connect the spark plug wires.
4. Connect the 14-way connector to the module.

Tighten:
Tighten the screw to 2.1 N·m (19 lb in).

5. Refer to Control Module References for programming and setup information.