Engine Control Module: Service and Repair

REMOVAL

The PCM engine control strategy prevents reduced idle speeds until after the engine operates for 320 km (200 miles). If the PCM is replaced after 320 km (200 miles) of usage, update the mileage and vehicle identification number (VIN) in the new PCM. Use the DRB scan tool to change the millage and VIN in the PCM. If this step is not done a Diagnostic Trouble Code (DTC) may be set. Refer to the appropriate Powertrain Diagnostic and the DRB scan tool.

Fig. 6 PCM:

The PCM attaches to a bracket welded on the dash panel.
1. Remove the air cleaner lid, disconnect the inlet air temperature sensor and makeup air hose.
2. Remove the negative battery cable.

Fig. 7 PCM Screws:

3. Remove screws attaching PCM to dashpanel bracket.

Fig. 8 Locking Tabs:

4. Unlock the connector then disconnect both 40-way connectors from the PCM.
5. Lift PCM up to remove it from vehicle.

INSTALLATION
The PCM engine control strategy prevents reduced idle speeds until after the engine operates for 320 km (200 miles). If the PCM is replaced after 320 km (200 miles) of usage, update the mileage and vehicle identification number (VIN) in the new PCM. Use the DRB scan tool to change the millage and VIN in the PCM. If this step is not done a Diagnostic Trouble Code (DTC) may be set. Refer to the appropriate Powertrain Diagnostic and the DRB scan tool.

The PCM attaches to a bracket welded on the dash panel.
1. Install PCM. Tighten mounting screws to 10.7 Nm (95 ins. lbs.).
2. Attach both 40-way connectors to PCM. Lock the tabs.
3. Install the negative battery cable.
4. Install the air cleaner lid, connect the inlet air temperature sensor and makeup air hose.