Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

How to Reset the ECM/PCM

Engine Control Module (ECM)/Powertrain Control Module (PCM) Reset Procedure
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. (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 (RADIO) (7.5 A) fuse from the under-hood fuse/relay box for 10 seconds.