How to Troubleshoot Fuel and Emissions Systems
Substituting the ECM
Special Tools Required
  • Honda diagnostic system (HDS)
  • Honda interface module (HIM)
  • HDS pocket tester
Use this procedure when you have to substitute a known-good ECM during troubleshooting procedures.
  1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
  1. Turn the ignition switch ON (II).
  1. Make sure the HDS communicates within the ECM. If it doesn't, go to the DLC circuit troubleshooting.
  1. Turn the ignition switch OFF, and wait 2 minutes.
  1. Remove the center console.
  1. Remove the passenger's kick panel.