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PCM Updating and Substitution For Testing

PCM Updating and Substitution for Testing

Special Tools Required
^ Honda diagnosis system (HDS) TDSGD2200
^ Honda interface module (HIM) EQS05A35570
^ HDS pocket tester TDSS3557011401
These special tools are available through the American Honda Tool and Equipment Program 1-888-424-6857.

Use this procedure when you have to substitute a known-good PCM in a troubleshooting procedure. Update the PCM only if the PCM does not already have the latest software loaded.

NOTE: Do not turn the ignition switch OFF while updating the PCM. If you turn the ignition switch OFF before completion, the PCM can be damaged.
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