CR-V LX 4WD L4-1972cc 2.0L DOHC MFI (2000)
Engine Control Module (ECM)/Powertrain Control Module (PCM) Reset Procedure
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. (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 (RADIO) (7.5 A) fuse from the under-hood fuse/relay box for 10 seconds.
ECM/PCM Updating and Substitution for Testing
ECM/PCM Updating and Substitution for Testing
Special Tools Required
Honda Interface Module (HIM) EQS05A35570
Use this procedure when you have to substitute a known-good ECM/PCM in a troubleshooting procedure. Update the ECM/PCM only if the ECM/PCM
does not already have the latest software loaded.
NOTE: Do not turn the ignition switch OFF while updating the ECM/PCM. If you turn the ignition switch OFF, the ECM/PCM can be damaged.
How to Update the ECM/PCM
NOTE:
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To ensure the latest program is installed, do an ECM/PCM update whenever the ECM/PCM is substituted or replaced.
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You can not update an ECM/PCM with the program it already has. It will only accept a new program.
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Before you update the ECM/PCM, make sure the vehicle's battery is fully charged.
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To prevent ECM/PCM damage, do not operate anything electrical (audio system, brakes, A/C, power windows, moonroof, door locks, etc.) during
the update.
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If you need to diagnose the Honda Interface Module (HIM) because the HIM's red (# 3) light came on or was flashing during the update leave the
ignition switch in the ON (II) position when you disconnect the HIM from the data link connector (DLC). This will prevent ECM/PCM damage.
1. Turn the ignition switch ON (II). Do not start the engine.
