Substituting the 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
• GNA600 and an iN workstation with HDS and CM update software

Use this procedure when you have to substitute a known-good PCM during troubleshooting procedure.

1. Connect the HDS to the DLC (A).
   Fig 1: Identifying Data Link Connector

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
2. Turn the ignition switch to ON (II).
3. Make sure the HDS communicates with the PCM. If it doesn't, go to the DLC circuit troubleshooting; '05-07 models (see '05-07 MODELS ), '08 model (see '08 MODEL ). If you are returning from DLC circuit troubleshooting, skip steps 4 to  5, then clean the throttle body after substituting the PCM (see '08 MODEL ).
4. Select the INSPECTION MENU with the HDS.
5. Select the ETCS TEST, then select the TP POSITION CHECK, and follow the HDS screen prompts.
   NOTE: If the TP POSITION CHECK indicates FAILED, continue to the end of this procedure.
6. Jump the SCS line with the HDS.
7. Remove the front console cover (A) (see step 5 under CENTER CONSOLE REMOVAL/INSTALLATION ) and pull back the carpet.
   Fig 2: Front Console Cover, Ducts, PCM Connectors And PCM With Torque Specifications

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
8. Remove the ducts (B).
9. Disconnect the PCM connectors (C).
10. Remove the two bolts (D), and remove the PCM (E).
11. Install a known-good PCM in the reverse order of removal.
12. Open the SCS with the HDS.
13. Turn the ignition switch to ON (II).
    NOTE: DTC P0630 "VIN Not Programmed or Mismatch" may be stored because the VIN has not been programmed into the PCM; ignore it, and continue this procedure.
14. Manually input the VIN to the PCM with the HDS.
15. Update the PCM if it does not have the latest software.
16. Select the IMMOBI SYSTEM with the HDS.
17. Enter the immobilizer code using the PCM replacement procedure in the HDS; this allows you to start the engine.
18. Reset the PCM with the HDS.
19. If the TP POSITION CHECK failed in step  6, clean the throttle body (see THROTTLE BODY CLEANING ).
20. Do the PCM idle learn procedure (see PCM IDLE LEARN PROCEDURE ).
21. Do the CKP pattern learn procedure (see CRANK (CKP) PATTERN CLEAR/CRANK (CKP) PATTERN LEARN ).