How to Troubleshoot the A/T System
Substituting the PCM
Special Tools Required
  • Honda diagnostic system (HDS)
  • Honda interface module (HIM)
  • HDS pocket tester
Use any one of these update tools.
NOTE: Use this procedure when you have to substitute a known-good PCM during troubleshooting procedure.
  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 to ON (II).
  1. Make sure the HDS communicates with the PCM. If it does not, go to the DLC circuit troubleshooting; R20A3 engine model, K24Z3 engine model.
  1. Jump the SCS line with the HDS.
  1. Turn the ignition switch to LOCK (0).