Engine Control Module: Service and Repair

ECM/PCM Replacement

'06-07 models




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 troubleshooting Testing and Inspection; '07 model. If you are returning from DLC circuit troubleshooting, skip steps 4 through 7, 17 through 19, and 22 through 23, and do the following procedures after replacing the ECM/PCM;
- Replace the engine oil and the engine oil filter.
- Clean the throttle body.

4. Select the PGM-FI system with the HDS.
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 with this procedure.

7. Select the REPLACE ECM/PCM MENU, then READ DATA and follow the screen prompts.

NOTE:
- Doing this step copies (READS) the engine oil life data from the original ECM/PCM so you can later download (WRITES) it into the new ECM/PCM.
- If READ DATA indicates FAILED, continue with this procedure.

8. Turn the ignition switch OFF.
9. Jump the SCS line with the HDS.




10. Remove the center lower covers (A).
11. Remove the duct (B).
12. Disconnect ECM/PCM connectors (C).
13. Remove the bolts (D), then remove the ECM/PCM (E).
14. Install the parts in the reverse order of removal.
15. Turn the ignition switch ON (II).
16. Manually input the VIN to the ECM/PCM with the HDS.

NOTE: DTC P0630 "VIN Not Programmed or Mismatch" may be stored because the VIN has not been programmed into the ECM/PCM; ignore it, and continue this procedure.

17. If the READ DATA (engine oil life) failed in step 8, Go to step20. Otherwise, Go to step 18.
18. Select the PGM-FI system with the HDS.
19. 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.

20. Select IMMOBI system with the HDS.
21. Enter the immobilizer code with the ECM/PCM replacement procedure in the HDS; it allows you to start the engine.
22. If the TP POSITION Check failed in step 6 clean the throttle body, then Go to step 23.
23. If the Read DATA failed in step7 or the WRITE DATA failed in step 19, replace the engine oil and engine oil filter, then Go to step 24.
24. Select PGM-FI system and reset the ECM/PCM with the HDS.
25. Update the ECM/PCM if it does not have the latest software.
26. Do the ECM/PCM idle learn procedure.
27. Do the CKP pattern learn procedure.