On the 3.0L engine, the (PCM) Powertrain Control Module is used in place of a ignition module. The PCM is designed to maintain exhaust emission levels to Federal or California standards, while providing excellent driveability and fuel efficiency. The control module monitors numerous engine and vehicle functions and controls the following operations.
The Ignition Control Module (ICM) on the 4.6L engine is located on the top of the rear camshaft cover. The ICM performs several functions:
The ICM is not repairable. When the module is replaced, the remaining components must be transferred to the new module
REMOVAL & INSTALLATION
- Remove the spark plug wires at the ignition control module assembly.
- Remove the four electrical connectors at the ignition control module.
- Remove the four bolts (4 and 8) retaining the IC module assembly to the rear camshaft cover.
- Remove the IC module assembly from the vehicle.
- Remove the ignition coils from the IC module assembly (1, 2, 3, and 7).
- Remove the IC module from the assembly bracket.
- Installation is the reversal of the removal procedure.