Substituting the ECM/PCM
Special Tools Required
- Honda diagnostic system (HDS) tablet tester
- Honda interface module (HIM) and an iN workstation with HDS and CM update software
- HDS pocket tester
- GNA-600 and an iN workstation with HDS and CM update software
NOTE:
Use this procedure when you need to substitute a known-good ECM/PCM during troubleshooting procedures.
- Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
- Turn the ignition switch ON (II).
- Make sure the HDS communicates with the ECM/PCM. If it doesn't, go to DLC CIRCUIT TROUBLESHOOTING , '07-08 MODELS '07-08 models . If you are returning from DLC circuit troubleshooting, skip step 5 to 10, and clean the throttle body after substituting the ECM/PCM (see THROTTLE BODY CLEANING ).
- Select the INSPECTION MENU with the HDS.
- Select the ETCS TEST, then select the TP POSITION CHECK, and follow the screen prompts.NOTE: If the TP POSITION CHECK indicates FAILED, continue this procedure.
- Turn the ignition switch OFF.
- Jump the SCS line with the HDS.
- Remove the center lower covers (A).
- Remove the duct (B).
- Disconnect the ECM/PCM connectors (C).
- Remove the bolts (D), then remove the ECM/PCM (E).
- Install the parts in the reverse order of removal.
- Turn the ignition switch ON (II).NOTE: For '05-08 models: DTC P0630 "VIN Not Programmed or Mismatch" may be stored because the VIN has not been programmed into the ECM/PCM; ignore it, and continue this procedure.
- Manually input the VIN to the ECM/PCM with the HDS.
- Update the ECM/PCM if it does not have the latest software.
- Select the IMMOBI SYSTEM with the HDS.
- Enter the immobilizer code using the ECM/PCM replacement procedure in the HDS; this allows you to start the engine.
- Reset the ECM/PCM with the HDS.
- If the TP POSITION CHECK failed in step 5, clean the throttle body (see THROTTLE BODY CLEANING ).
- Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).
- Do the crank (CKP) pattern learn procedure.