MODULE -ENGINE CONTROL
REMOVAL
The ECM (Engine Control Module) (2) is located in the engine compartment.
Use a diagnostic scan tool to reprogram the new ECM with the vehicles original identification number (VIN) and the vehicles original mileage. If this step is not done, a Diagnostic Trouble Code (DTC) may be set.
To avoid possible voltage spike damage to the ECM, ignition key must be off, and negative battery cable must be disconnected before unplugging ECM connectors.
1. Disconnect negative battery cable at battery.
2. Remove plastic shields from over electrical connectors. Shields snap to connectors.
3. Carefully unplug two electrical connectors (1) from ECM.
4. Remove ECM mounting bolts (3) and remove ECM (2) from vehicle.
INSTALLATION
Use a diagnostic scan tool to reprogram the new Engine Control Module (ECM) with the vehicles original identification number (VIN) and the vehicles original mileage. If this step is not done, a Diagnostic Trouble Code (DTC) may be set.
1. Check pin connectors in ECM and electrical connectors for corrosion or damage. Also check pin heights in connectors. Pin heights should all be the same. Repair as necessary before installing electrical connectors.
2. Install two electrical connectors to ECM.
3. Install ECM (2) and mounting screws (3) to vehicle.
4. Tighten screws to 4 N·m (35 in. lbs.).
5. Install plastic shield to electrical connectors. Shields snap to connectors.
6. Install negative battery cable.
7. Use a diagnostic scan tool to reprogram new ECM with vehicles original Vehicle Identification Number (VIN) and original vehicle mileage.