Special Tools Required

Honda diagnostic system (HDS) tablet tester
Honda interface module (HIM) and iN workstation with the latest HDS software version
HDS pocket tester
GNA600 and iN workstation with the latest HDS software version

Any one of the above updating tools can be used.

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

Fig 1: Connecting HDS To Data Link Connector (DLC)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Turn the ignition switch to ON (II).
Make sure the HDS communicates with the PCM and all other vehicle systems. If it doesn't, go to DLC CIRCUIT TROUBLESHOOTING . If you are returning from the DLC circuit troubleshooting, skip steps 5 through 9, 18 through 23, and 26 through 28, and do these procedures after replacing the PCM:
- Replace the engine oil (see ENGINE OIL REPLACEMENT ) and the engine oil filter (see ENGINE OIL FILTER REPLACEMENT ).
- Replace the ATF (see ATF REPLACEMENT ).
- Clean the throttle body (see THROTTLE BODY CLEANING ).
Select the PGM-FI system with the HDS.
Select the INSPECTION MENU with the HDS.
Select the ETCS TEST, then select the TP POSITION CHECK, and follow the HDS prompts.
NOTE: If the TP POSITION CHECK indicates FAILED, continue with this procedure.
Select the REPLACE PCM MENU, then select READ DATA, and follow the HDS prompts.
NOTE:
- 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.
- If READ DATA indicates FAILED, continue with this procedure.
Select the A/T system with the HDS.
Select the REPLACE TCM/PCM MENU, then select READ DATA, and follow the HDS prompts.
NOTE:
- Doing this step copies (READS) the ATF life data from the original PCM so you can later download (WRITES) it into the new PCM.
- If READ DATA indicates FAILED, continue with this procedure.
Turn the ignition switch to LOCK (0).
Jump the SCS line with the HDS.
Remove the cover (D).

Fig 2: PCM Connector Cover & Screw With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Disconnect PCM connectors A, B, and C.
NOTE: PCM connectors A, B, and C have symbols (A=□, B=Δ, C=◦) embossed on them for identification.
Remove the bolts (E), and remove the PCM (F).
Install the PCM in the reverse order of removal.
Turn the ignition switch to ON (II).
Manually input the VIN to the PCM with the HDS.
NOTE: DTC P0630 VIN Not Programmed or Mismatch may be stored because VIN has not been programmed into the PCM; ignore it, and continue this procedure.
If the READ DATA (engine oil life) failed in step 7, go to step 21. Otherwise, go to step 19.
Select the PGM-FI system with the HDS.
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.
If the READ DATA (ATF life) failed in step 9, go to step 24. Otherwise, go to step 22.
Select the AT SYSTEM with the HDS.
Select the REPLACE TCM/PCM MENU, then select WRITE DATA, and follow the HDS prompts.
NOTE: If the WRITE DATA indicates FAILED, continue with this procedure.
Select IMMOBI SYSTEM with the HDS.
Enter the immobilizer code with the PCM replacement procedure in the HDS; it allows you to start the engine.
If the TP POSITION CHECK failed in step 6, clean the throttle body (see THROTTLE BODY CLEANING ), then Go to step 27.
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.
If the READ DATA failed in step 9 or the WRITE DATA failed in step 23, replace the ATF (see ATF REPLACEMENT ), then go to step 29.
Select PGM-FI system and reset the PCM with the HDS.
Update the PCM if it does not have the latest software (see PCM UPDATE ).
Do PCM IDLE LEARN PROCEDURE .
Do the CKP pattern learn procedure (see CKP PATTERN CLEAR/CKP PATTERN LEARN ).