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 has the latest HDS software version.
- The lifetime points of the Eco guide cannot be carried over to the replacement PCM.
- Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
- Turn the ignition switch to ON (II).
- 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 the DLC circuit troubleshooting, skip steps 4 through 7, 17 through 19, and 20 through 23, and do these procedures after replacing the PCM:
- Replace the engine oil and the engine oil filter (see ENGINE OIL FILTER REPLACEMENT ).
- Clean the throttle body (see THROTTLE BODY TEST ).
- 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 screen 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 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 the new PCM.
- If the READ DATA indicates FAILED, continue with this procedure.
- Jump the SCS line with the HDS.
- Turn the ignition switch to LOCK (0).
- Remove the PCM cover (A), then go to step 11 (KC model) or to step 12 (except KC model).
- Remove the bracket (A).
- Remove the bolts (D).
- Disconnect PCM connectors A, B, and C, then remove the PCM (E).NOTE: PCM connectors A, B, and C have symbols (A=□, B=Δ, C=◦) embossed on them for identification.
- Install all parts 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 the 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 18.
- Select the PGM-FI system with the HDS.
- Select the REPLACE PCM MENU, then select WRITE DATA, and follow the screen prompts.NOTE: If the WRITE DATA indicates FAILED, continue with this procedure.
- Select the IMMOBI system with the HDS.
- 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.
- If the TP POSITION CHECK failed in step 6, clean the throttle body (see THROTTLE BODY TEST ), then go to step 23.
- If the READ DATA failed in step 7 or the WRITE DATA failed in step 19, replace the engine oil (see ENGINE OIL REPLACEMENT ), and the engine oil filter (see ENGINE OIL FILTER REPLACEMENT ), then go to step 24.
- Select the 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 the PCM idle learn procedure (see
PCM IDLE LEARN PROCEDURE
).NOTE: If the IMA battery level indicator displays no level, start the engine, and hold it between 3, 500 and 4, 000 rpm without load (in P or N) until the level in the indicator is half full.
- Do the CKP pattern clear/CKP pattern learn procedure (see CKP PATTERN CLEAR/CKP PATTERN LEARN ).
- Do the start clutch control calibration procedure (see START CLUTCH PRESSURE CONTROL CALIBRATION PROCEDURES ).