ECM/Pcm Reset Procedure/Clearing Diagnostic Trouble Codes

WARNING: This page is about a different car, the 2003 Acura RSX. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Some models have an anti-theft code built into radio circuit. Clearing codes cancels clock and radio settings; make note of anti-theft code and station presets before beginning reset procedure. After ECM/PCM reset, radio will not operate until anti-theft code is entered.

To reset Powertrain Control Module (ECM/PCM) (clear codes), use Honda PGM tester or OBD-II scan tool following manufacturer's instructions. Codes can also be cleared by turning ignition off and removing BACK UP (RADIO) fuse (7.5-amp) from underhood fuse/relay block (located next to battery). On all models, leave fuse out for at least 10 seconds to reset ECM/PCM. Remove SCS service connector, if connected. Disconnect Honda PGM Tester or scan tool from DLC.

NOTE: If service check connector is connected and no DTC is stored in ECM/PCM, MIL will remain on when the ignition is turned on.