Work Procedure

Description

When replacing ECM, the following procedure must be performed.

PROGRAMMING OPERATION

NOTE: After replacing with a blank ECM, programming is required to write ECM information. Be sure to follow the procedure to perform the programming.

BEFORE REPLACEMENT

When replacing ECM, perform "SAVING DATA FOR REPLC CPU" in "WORK SUPPORT" of "ENGINE" by using CONSULT to save current ECM data before replacement.

AFTER REPLACEMENT

After replacing ECM, the following items must be performed:

Write data after replace CPU
Accelerator pedal released position learning
Throttle valve closed position learning
Idle air volume learning

Work Procedure (Before Replacing ECM)

SAVE ECM DATA
With CONSULT
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 CONSULT.
5. Follow the instruction of CONSULT display.
NOTE:
- Necessary data in ECM is copied and saved to CONSULT.
- Go to Step 2 regardless of with or without success in saving data.
>>

GO TO 2.
SAVE 'OPERATION LOG'
With CONSULT: Save Operation Log, according to the procedure of "Programming" in CONSULT Operation Manual.

NOTE: ECM part number is saved in Operating Log saved in CONSULT.

>>
- Replace ECM.
- After replacing ECM, perform necessary work.

Work Procedure (After Replacing ECM)

After replacing ECM, the following items must be performed:

Write data after replace CPU
Accelerator pedal released position learning
Throttle valve closed position learning
Idle air volume learning
Electric intake valve timing control actuator reference position learning

CHECK 'OPERATION LOG'
With CONSULT: Check Operation Log saved before replacing ECM, according to the procedure of "Programming" in CONSULT Operation Manual.

NOTE: For the vehicle that the programming is to be performed, check if Operation Log of Vehicle Identification Number (VIN) is in Saved Data List.

Is there an applicable Operation Log in the Saved Data List?

YES>>

GO TO 2.

NO>>

GO TO 3.
PERFORM ECM PROGRAMMING
With CONSULT: Perform ECM programming, according to "Programming" of CONSULT Operation Manual. Refer to CONSULT 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 CONSULT screen.)
>>

GO TO 5

.
READ IN ECM PART NUMBER BY 'EPC (service parts catalog) LINKED'
Obtain ECM part number by NISSAN PARTS CATALOG GLOBAL EPC (service parts catalog), according to the procedure of 'EPC (service parts catalog) linked' in CONSULT Operation Manual. Refer to CONSULT Operation Manual.

NOTE: 'EPC (service parts catalog) linked' allows an appropriate programming by obtaining ECM part number from NISSAN PARTS CATALOG GLOBAL EPC (service parts catalog) even when the part number cannot be obtained from the old ECM used before replacing with a new one.

>>

GO TO 4.
PERFORM ECM PROGRAMMING [EPC (service parts catalog) LINKED]
With CONSULT: Perform ECM programming according to the procedure of EPC (service parts catalog) linked in CONSULT Operation Manual. Refer to CONSULT 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 CONSULT screen.)
>>

GO TO 5

.
PERFORM INITIALIZATION OF IVIS (NATS) SYSTEM AND REGISTRATION OF ALL IVIS (NATS) IGNITION KEY IDS
Refer to Work Procedure .

>>

GO TO 6

.
CHECK ECM DATA STATUS
Check if the data is successfully copied from the ECM at Step 1 (before replacement) and saved in CONSULT.

Is the data saved successfully?

YES>>

GO TO 7

.

NO>>

GO TO 8

.
WRITE ECM DATA
With CONSULT
1. Select "WRITING DATA FOR REPLC CPU" in "WORK SUPPORT" mode of "ENGINE" using CONSULT.
2. Follow the instruction of CONSULT display.
NOTE: The data saved by "SAVING DATA FOR REPLC CPU" is written to ECM.

>>

GO TO 9

.
PERFORM VIN REGISTRATION
Refer to Work Procedure .

>>

GO TO 9

.
PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
Perform Accelerator Pedal Released Position Learning. Refer to Work Procedure .

>>

GO TO 10

.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform Throttle Valve Closed Position Learning. Refer to Work Procedure .

>>

GO TO 11

.
PERFORM IDLE AIR VOLUME LEARNING
Perform Idle Air Volume Learning. Refer to Work Procedure .

>>

END