Impala V6-3.8L SC VIN 1 (2005)
Ignition Control Module: Service and Repair
IGNITION CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the negative battery cable.
2. Remove the 14-way electrical 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 ignition coil screws (1).
5. Remove the ignition coils (2) from the ICM (3).
6. Remove the ignition control module (3) from the bracket.
INSTALLATION PROCEDURE
1. Install the ignition control module to the bracket.
2. Install the ignition coils (2) to the ignition control module (3).
3. Install the ignition coil screws (1).
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten the screws to 4.5 N.m (40 lb in).
4. Connect the spark plug wires.
5. Connect the 14-way electrical connector to the module.
Tighten the screw to 2.1 N.m (19 lb in).
6. Connect the negative battery cable.
