Before Replacing ECM

19. SAVE ECM DATA
With M.U.T.-III SE
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Turn ignition switch ON.
4. Select "SAVING DATA FOR REPLC CPU" in "WORK SUPPORT" mode of "ENGINE" using M.U.T.-III SE.
5. Follow the instruction of M.U.T.-III SE display.
NOTE:
- Necessary data in ECM is copied and saved to M.U.T.-III SE.
- Go to Step 2 regardless of with or without success in saving data.
With remote engine start function >>

GO TO 2 .

Without remote engine start function >>
- Replace ECM.
- After replacing ECM, perform necessary work.
20. REPLACE ECM
Replace ECM. Refer to ECM: REMOVAL & INSTALLATION .

>>

After replacing ECM, perform necessary work.

After Replacing ECM
21. PERFORM ECM PROGRAMMING
With M.U.T.-III SE

Perform ECM programming according to the procedure of "Programming" in M.U.T.-III SE Operation Manual. Refer to M.U.T.-III SE Operation Manual.
CAUTION:
During programming, maintain the following conditions:
- Ignition switch: ON
- Electric load: OFF
- Brake pedal: Not depressed
- Battery voltage: 12 - 13.5 V (Check the value displayed on the M.U.T.-III SE screen.)
With remote engine start function >>

GO TO 2 .

Without remote engine start function >>

GO TO 3 .
22. PERFORM IGNITION SWITCH OPERATION
1. Turn ignition switch OFF.
2. Turn ignition switch ON.
>>

GO TO 3 .
23. PERFORM INITIALIZATION OF NATS SYSTEM AND REGISTRATION OF ALL NATS IGNITION KEY IDS
Refer to DESCRIPTION .

>>

GO TO 4 .
24. CHECK ECM DATA STATUS
Check if the data is successfully copied from the ECM at Step 1 (before replacement) and saved in M.U.T-III SE.

Is the data saved successfully?

YES >>

GO TO 5 .

NO >>

GO TO 6 .
25. WRITE ECM DATA
With M.U.T-III SE
1. Select "WRITING DATA FOR REPLC CPU" in "WORK SUPPORT" mode of "ENGINE" using M.U.T-III SE.
2. Follow the instruction of M.U.T-III SE display.
NOTE: The data saved by "SAVING DATA FOR REPLC CPU" is written to ECM.

>>

GO TO 7 .
26. PERFORM VIN REGISTRATION
Refer to DESCRIPTION .

>>

GO TO 7 .
27. WRITING MAC KEY FOR ECM
Refer to DESCRIPTION .

>>

GO TO 8 .
28. PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
Refer to DESCRIPTION .

>>

GO TO 9 .
29. PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Refer to DESCRIPTION .

>>

GO TO 10 .
30. PERFORM IDLE AIR VOLUME LEARNING
Refer to DESCRIPTION .

>>

GO TO 11 .
31. PERFORM EGR VOLUME CONTROL VALVE CLOSED POSITION LEARNING
Refer to DESCRIPTION .

>>

GO TO 12 .
32. CHECK DTC
1. Turn ignition switch OFF and wait for 10 seconds or more.
2. Turn ignition switch ON.
3. If DTC is displayed, perform diagnosis of detected DTC. Refer to DTC INDEX .
>>

END