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Circuit Tests: Notes

CAUTION: When substituting a known-good PCM, immobilizer code must be rewritten to replacement known-good PCM using a Honda PGM tester, or engine will not start.
NOTE: Before performing any diagnostic test, refer to TESTS W/CODES - INTRODUCTION article for diagnostic system functions and system diagnostic procedures.
NOTE: Different Honda models are equipped with either an Engine Control Module (ECM) or a Powertrain Control Module (PCM). ECM will be referred to as a PCM.
NOTE: When there is no DTC stored, MIL will stay on if the SCS Service Connector (07PAZ-0010100 ) is connected and ignition is on.

When directed by testing procedure to install test equipment, see TEST EQUIPMENT in TESTS W/CODES - INTRODUCTION article.