ION L4-2.2L VIN F (2004)
Engine Control Module: Service and Repair
ENGINE CONTROL MODULE (ECM) REPLACEMENT
REMOVAL PROCEDURE
NOTE:
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In order to prevent any possible electrostatic discharge damage to the ECM, do not touch the connector pins or the soldered components on the
circuit board.
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Always turn the ignition off when installing or removing the ECM connectors in order to prevent damage to the components.
1. Disconnect the negative battery cable.
2. Disconnect the small ECM harness connector (3) from the ECM.
3. Remove the bolt retaining the large ECM connector to the ECM.
4. Disconnect the large ECM harness connector (4) from the ECM.
