Engine Control Module: Service and Repair

PCM Replacement

Special Tools Required

- Honda Diagnostic System (HDS) tablet tester
- Honda Interface Module (HIM) and an iN workstation with the latest HDS software version
- HDS pocket tester
- GNA600 and an iN workstation with the latest HDS software version
- MVCI unit with the latest control module (CM) update software installed
Any one of the above updating tools can be used.

NOTE: Make sure the HDS/iN workstation or the MVCI unit has the latest HDS software version.

1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.





2. Turn the ignition switch to ON (II).

3. Make sure the HDS communicates with the PCM and all other vehicle systems. If it does not, go to the DLC circuit troubleshooting Testing and Inspection. If the result of the DLC circuit troubleshooting is to replace the PCM, skip steps 4 and 5, 14 through 16, and 19, and do the following procedures after replacing the PCM:

- Replace the engine oil Service and Repair and the engine oil filter Service and Repair.

4. USA, Canada models: Select the PGM-FI system with the HDS.

5. USA, Canada models: Select the REPLACE PCM MENU, then select READ DATA, and follow the HDS screen prompts.

NOTE:

- Doing this step copies (READS) the engine oil life data from the original PCM so you can later download (WRITES) it into a new PCM.
- If READ DATA indicates FAILED, continue with this procedure.

6. Turn the ignition switch to LOCK (0).

7. Jump the SCS line with the HDS.

8. Disconnect PCM connectors A, B, and C.

NOTE: PCM connectors A, B, and C have symbols (A=(square), B=(triangle), C=(circle)) embossed on them for identification.





9. Remove the bolts (D), and remove the PCM assembly (E).

10. Remove the cover (A), and the bracket (B) from the PCM (C).





11. Install the parts in the reverse order of removal.

12. Turn the ignition switch to ON (II).

13. Manually input the VIN to the PCM with the HDS.

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. USA, Canada models: If the READ DATA (engine oil life) failed in step 5, go to step 17. Otherwise, go to step 15.

15. USA, Canada models: Select the PGM-FI system with the HDS.

16. USA, Canada models: Select the REPLACE PCM MENU, then select WRITE DATA, and follow the HDS prompts.

NOTE: If the WRITE DATA indicates FAILED, continue with this procedure.

17. Select IMMOBI system with the HDS.

18. Enter the immobilizer PCM code that you got from the iN, and use the PCM replacement procedure in the IMMOBI MENU of the HDS; it allows you to start the engine.

19. USA, Canada models: If the READ DATA failed in step 5 or the WRITE DATA failed in step 16, replace the engine oil Service and Repair and engine oil filter Service and Repair, then go to step 20.

20. Clean the throttle body Procedures.

21. Select PGM-FI system, and reset the PCM with the HDS.

22. Update the PCM if it does not have the latest software PCM Update.

23. Do the PCM idle learn procedure PCM Idle Learn Procedure.

24. Do the CKP pattern clear/CKP pattern learn procedure.