Pgm-Fi System (Except Hybrid & V6): Other Honda Accord VII

'03-05 models

Note. Make sure the HDS is loaded with the latest software version. If you are replacing the ECM/PCM after substituting a known-good ECM/PCM, reinstall the original ECM/PCM, then do this procedure.

Scheme 207

Scheme 208

1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
2. Make sure the HDS communicates with the ECM/PCM. If it doesn't, go to the DLC circuit (see «DLC Circuit Troubleshooting»(ref-217090-S42887122672006012800000) ).
3. Turn the ignition switch ON (II).
4. Turn the ignition switch OFF.
5. Jump the SCS line with the HDS.
6. Remove the center lower covers (A).
7. Remove the duct (B).
8. Disconnect ECM/PCM connectors (C).
9. Remove the bolts (D), then remove the ECM/PCM (E).
10. Install the ECM/PCM in the reverse order of removal.
11. Open the SCS line with the HDS.
12. Turn the ignition switch ON (II). NOTE: DTC P0630 "VIN Not Programmed or Mismatch" may be stored because VIN has not been programmed into the ECM/PCM; ignore it, and continue this procedure.
13. '05 model: Input the VIN to the ECM/PCM with the HDS.
14. Rewrite the immobilizer code with the ECM/PCM replacement procedure in the HDS; it allows you to start the engine.
15. Reset the ECM/PCM with the HDS.
16. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-217093-S19810389522006012800000) ).
17. Do the CKP pattern clear/pattern learn procedure with the HDS (see «HDS CLEAR COMMAND»(ref-217088-S06780142412006012800000) ).

'06-07 models

Note. Make sure the HDS is loaded with the latest software version. If you are replacing the ECM/PCM after substituting a known-good ECM/PCM, reinstall the original ECM/PCM, then do this procedure. During the procedure, if any READ DATA, WRITE DATA, or other data checks fail, not the failure, the continue.

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 ON (II).
3. Make sure the HDS communicates with the ECM/PCM. If it doesn't, go to the DLC circuit (see «DLC Circuit Troubleshooting»(ref-217090-S42887122672006012800000) ). If you are returning from DLC circuit troubleshooting, skip steps 4 through 9 and 20 through 25, and do the following procedure after replacing a ECM/PCM. Replace the engine oil and the engine oil filter (see «ENGINE OIL REPLACEMENT»(ref-217084-S36635099172006012800000) , «ENGINE OIL FILTER REPLACEMENT»(ref-217084-S33884019242006012800000) ). Replace the ATF (see «ATF REPLACEMENT»(ref-217103-S11949941292006012800000) ). Clean the throttle body (see «THROTTLE BODY CLEANING»(ref-217095-S29052750962006012800000) ).
4. Select the PGM-FI system with the HDS.
5. Select INSPECTION MENU with HDS..
6. 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.
7. Select the REPLACE ECM/PCM MENU, then READ DATA and follow the screen prompts.
8. A/T: Select the A/T SYSTEM with the HDS.
9. A/T: Select the REPLACE TCM/PCM, then READ DATA and follow the screen 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.
10. Turn the ignition switch OFF.
11. Jump the SCS line with HDS.
12. Remove the center lower covers (A).
13. Remove the duct (B).
14. Disconnect the ECM/PCM connectors (C).
15. Remove the bolts (D), then remove the ECM/PCM (E).
16. Install the ECM/PCM in the reverse order of removal.
17. Open the SCS line with the HDS.
18. Turn the ignition switch ON (II).
19. Manually input the VIN to the ECM/PCM with the HDS. NOTE: DTC P0630 "VIN Not Programmed or Mismatch" maybe stored because the VIN has not been programmed into the ECM/PCM; ignore it, and continue this procedure.
20. If the READ DATA (engine oil life) failed in step 7, go to step 23 (A/T) or step 26 (M/T). Otherwise go to step 21.
21. Select the PGM-FI system with the HDS.
22. Select the REPLACE ECM/PCM MENU, then WRITE DATA and follow the screen prompts. NOTE: If the WRITE DATA indicates FAILED, continue with this procedure.
23. A/T: If the READ DATA (ATF life) failed in step 9, go to step 26. Otherwise go to step 24.
24. A/T: Select the A/T SYSTEM with HDS.
25. A/T: Select the REPLACE TCM/PCM MENU, then WRITE DATA and follow the screen prompts. NOTE: If the WRITE DATA indicates FAILED, continue with this procedure.
26. Select IMMOBI system with the HDS.
27. Enter the immobilizer code with the ECM/PCM replacement procedure in the HDS; it allows you to start the engine.
28. If the TP POSITION CHECK failed in step 6 clean the throttle body (see «THROTTLE BODY CLEANING»(ref-217095-S29052750962006012800000) ), then go to step 29.
29. If the READ DATA failed in step 7 or the WRITE DATA failed in step 22, replace the engine oil and engine oil filter (see «ENGINE OIL REPLACEMENT»(ref-217084-S36635099172006012800000) , «ENGINE OIL FILTER REPLACEMENT»(ref-217084-S33884019242006012800000) ), then go to step 30 (A/T) or step 31 (M/T).
30. If the READ DATA failed in step 9 or the WRITE DATA failed in step 25, replace the ATF (see «ATF REPLACEMENT»(ref-217103-S11949941292006012800000) ), then go to step 31.
31. Select PGM-FI system and reset the ECM/PCM with the HDS.
32. Update the ECM/PCM if it does not have the latest software (see «UPDATING THE ECM/PCM»(ref-217088-S24744287632006012800000) ).
33. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-217093-S19810389522006012800000) ).
34. Do the CKP pattern learn procedure (see «CRANK (CKP) PATTERN CLEAR/CRANK (CKP) PATTERN LEARN; CLEAR/LEARN PROCEDURE (WITH THE HDS)»(ref-217088-S27848736222006012800000) ).

Scheme 209

1. Drain the engine coolant (see «COOLANT REPLACEMENT»(ref-217086-S03410102242006012800000) ).
2. Remove the splash shield.
3. Disconnect the ECT sensor 2 connector (A), then remove ECT sensor 2 (B).
4. Install ECT sensor 2 with a new O-ring (C).
5. Install the splash shield.
6. Refill the radiator with engine coolant (see «COOLANT REPLACEMENT»(ref-217086-S03410102242006012800000) ).