Operation CHARM: Car repair manuals for everyone.

Clearing Diagnostic Trouble Codes

How to Reset the PCM
1. Make sure you have the anti-theft code for the radio, then write down the radio station presets.
2. Turn the ignition switch OFF.





3. Use one of these methods to reset the PCM memory:
- Use the OBD II Scan Tool or the Honda PGM Tester.
- Remove the BACK UP fuse (7.5 A)(A) from the passenger's under-dash fuse/relay box (B) for 10 seconds.

How to End a Troubleshooting Session
This procedure must be done after any troubleshooting.
1. Turn the ignition switch OFF.
2. Disconnect the OBD II Scan Tool or Honda PGM Tester (C) from the DLC (D).
3. Reset the PCM.
4. Turn the ignition switch ON (II).
5. Enter the radio code, reset the preset stations, and set the clock.
6. To verify that the problem is repaired, test-drive the vehicle for several minutes at speeds over 30 mph (48 km/h).