PCM Replacement

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

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

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
2. Turn the ignition switch ON (II).
3. Make sure the HDS communicates with the PCM and other vehicle systems. If it doesn't, go to the DLC circuit troubleshooting  (see ). If you are returning from DLC circuit troubleshooting, skip steps 4 through  9,  18 through  23, and  26 through  28, and do this after replacing the PCM;
   • USA, Canada models: Replace the engine oil (see ENGINE OIL REPLACEMENT ) and the engine oil filter (see ENGINE OIL FILTER REPLACEMENT ).
   • USA, Canada models: Replace the ATF (see ATF REPLACEMENT ).
   • USA, Canada models: Clean the throttle body (see THROTTLE BODY CLEANING ).
4. USA, Canada models: Select the PGM-FI system with the HDS.
5. USA, Canada models: Select the INSPECTION MENU with the HDS.
6. USA, Canada models: Select the ETCS TEST, then select the TP POSITION CHECK, and follow the screen prompts.
   NOTE: USA, Canada models: If the TP POSITION CHECK indicates FAILED, continue with this procedure.
7. USA, Canada models: Select the REPLACE PCM MENU, then select READ DATA and follow the screen prompts.
   NOTE:

   • USA, Canada models: Doing this step copies (READS) the engine oil life data from the original PCM so you can later download (WRITES) it into the new PCM.
   • USA, Canada models: If READ DATA indicates FAILED, continue with this procedure.
8. USA, Canada models: Select the A/T system with the HDS.
9. USA, Canada models: Select the REPLACE TCM/ PCM MENU, then select READ DATA and follow the screen prompts.
   NOTE:

   • USA, Canada models: Doing this step copies (READS) the ATF life data from the original PCM so you can later download (WRITES) it into the new PCM.
   • USA, Canada models: If READ DATA indicates FAILED, continue with this procedure.
10. Turn the ignition switch OFF.
11. Jump the SCS line with the HDS.
12. Remove the bracket (D), then free the A/C discharge line (E) from the clip (F) and remove the A/C suction line mounting bracket bolt (G).
    Fig 2: Bracket And A/C Suction Line Mounting Bracket Bolt With Torque Specification

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
13. Remove the cover (H), then disconnect the PCM connectors A, B, and C.
    NOTE: PCM connectors A, B, and C have symbols (A=□, B=Δ, C=◦) embossed on them for identification.
14. Remove the bolts (I), then remove the PCM (J).
15. Install the parts in the reverse order of removal.
16. Turn the ignition switch ON (II).
17. USA, Canada models: Manually input the VIN to the PCM with the HDS.
    NOTE: USA, Canada models: 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.
18. USA, Canada models: If the READ DATA (engine oil life) failed in step  7, go to step  21. Otherwise, go to step 19.
19. USA, Canada models: Select the PGM-FI system with the HDS.
20. USA, Canada models: Select the REPLACE PCM MENU, then select WRITE DATA and follow the screen prompts.
    NOTE: USA, Canada models: If the WRITE DATA indicates FAILED, continue with this procedure.
21. USA, Canada models: If the READ DATA (ATF life) failed in step  9, go to step  24. Otherwise go to step 22.
22. USA, Canada models: Select the A/T SYSTEM with the HDS.
23. USA, Canada models: Select the REPLACE TCM/ PCM MENU, then select WRITE DATA and follow the screen prompts.
    NOTE: USA, Canada models: If the WRITE DATA indicates FAILED, continue with this procedure.
24. Select IMMOBI system with the HDS.
25. Enter the immobilizer code with the PCM replacement procedure in the HDS; it allows you to start the engine.
26. USA, Canada models: If the TP POSITION CHECK failed in step  6 clean the throttle body (see THROTTLE BODY CLEANING ), then go to step 27.
27. USA, Canada models: If the READ DATA failed in step  7 or the WRITE DATA failed in step  20, replace the engine oil (see ENGINE OIL REPLACEMENT ) and engine oil filter (see ENGINE OIL FILTER REPLACEMENT ), then go to step 28.
28. USA, Canada models: If the READ DATA failed in step  9 or the WRITE DATA failed in step  21, replace the ATF (see ATF REPLACEMENT ), then go to step 29.
29. Select PGM-FI system and reset the PCM with the HDS.
30. Update the PCM if it does not have the latest software (see PCM UPDATE ).
31. Do the PCM idle learn procedure (see PCM IDLE LEARN PROCEDURE ).
32. Do the CKP pattern learn procedure (see CRANK (CKP) PATTERN CLEAR/CRANK (CKP) PATTERN LEARN ).