Engine Control Module: Service and Repair

How to Remove the ECM/PCM for Testing

If the inspection for a trouble code requires voltage or resistance checks at the ECM/PCM connectors, remove the ECM/PCM and test it:

1. Disconnect the negative cable from the battery.
2. Remove glove box.




3. Disconnect the gray 20P ECM/PCM wire harness connector, and remove it from the ECM/PCM mounting bracket. Disconnect the 7 P mode control motor connector. Remove PGM-FI main relay 2 (A). Remove the ECM/PCM mounting bolt (B) and the bracket.
4. Remove the nuts, then remove the ECM/PCM (C).
5. Install the ECM/PCM in the reverse order of removal.
6. Reconnect the negative cable to the battery.
7. Do the ECM/PCM idle learn procedure.