Substituting the PCM
Substituting the PCMSpecial 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
Use any one of these update tools.
NOTE: Use this procedure when you need to substitute a known-good PCM during troubleshooting procedures.
1. Make sure you have the anti-theft codes for the audio system or the navigation system (if equipped), then write down the audio presets.
2. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
3. Turn the ignition switch ON (II).
4. Make sure the HDS communicates with the PCM and other vehicle systems. If it doesn't, go to the DLC circuit troubleshooting. Testing and Inspection If you are returning from DLC circuit troubleshooting, skip steps 5 and 6, and clean the throttle body after substituting the PCM.
5. Select the INSPECTION MENU with the 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 this procedure.
7. Turn the ignition switch OFF.
8. Remove the battery.
9. Remove the cover (A).
10. Remove the bolts (D), then remove the PCM (E).
11. 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.
12. Install the parts in the reverse order of removal.
NOTE: If the IMA battery level indicator (BAT) on the gauge indicates zero level, start the engine, and hold it between 3,500 rpm and 4,000 rpm without load (in Park or neutral) until the IMA battery level indicator (BAT) indicates at least three segments.
13. Turn the ignition switch ON (II).
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. Manually input the VIN to the PCM with the HDS.
15. Update the PCM if it does not have the latest software.
16. Select the IMMOBI SYSTEM with the HDS.
17. Enter the immobilizer code using the PCM replacement procedure in the HDS; this allows you to start the engine.
18. Reset the PCM with the HDS.
19. If the TP POSITION CHECK failed in step 6, clean the throttle body.
20. Do the PCM idle learn procedure.
21. Do the CKP pattern learn procedure.
22. Enter the anti-theft codes for the audio system or the navigation system (if equipped), then enter the audio presets. Set the clock (on vehicle without navigation).