Civic DX Coupe L4-1590cc 1.6L SOHC MFI (1999)
Engine Control Module: Service and Repair
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.
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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.
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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.