How to Reset the ECM/PCM

Engine Control Module (ECM)/Powertrain Control Module (PCM) Reset Procedure

NOTE: Resetting the ECM/PCM will erase any stored DTCs and any freeze data. It will also restart all readiness code monitors.

Either of the following actions will reset the ECM/PCM.
* Use the OBD II scan tool or Honda PGM Tester to clear the ECM's/PCM's memory.

NOTE: See the OBD II scan tool or Honda PGM Tester user's manuals for specific operating instructions.





* Turn the ignition switch OFF. Remove the BACK UP (7.5 A) fuse from the under-hood fuse/relay box for 10 seconds.

NOTE: Removing the BACK UP (7.5 A) fuse cancels the clock and the radio presets. Make note of the customer's presets so you can reset them.