Engine Control Module: Service and Repair

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1. Disconnect battery ground cable.
2. Disconnect two ECM electrical connectors.
3. Remove the ECM mounting hardware.
4. Remove ECM from passenger compartment.
5. Reverse procedure to install.

CAUTION: Replacement ECM is supplied without engine calibration unit (PROM) and care must be taken when removing the PROM from a defective ECM as it will be used in the replacement ECM.