Toyota
Nissan Versa
 Sedan Service Manual
Engine » Engine control system (EC)
Additional service when replacing ECM

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.

Work Procedure

1.CHECK ECM PART NUMBER

Check ECM part number to see whether it is blank ECM or not.

NOTE:

  • Part number of blank ECM is 23703 ×××××.
  • Check the part number when ordering ECM or with the one included in the label on the container box.

Is the ECM a blank ECM?

YES >> GO TO 2.

NO >> GO TO 4.

2.SAVE ECM PART NUMBER

Read out the part number from the old ECM and save the number, following the programming instructions.

Refer to "CONSULT Operation Manual".

NOTE:

  • The ECM part number is saved in CONSULT.
  • Even when ECM part number is not saved in CONSULT, go to 3.

>> GO TO 3.

3.PERFORM ECM PROGRAMMING

After replacing ECM, perform the ECM programming. Refer to "CONSULT Operation Manual".

NOTE:

  • Refer to EC463, "Removal and Installation" for replacement of ECM.
  • During programming, maintain the following conditions:
  • Ignition switch: ON
  • Electric load: OFF
  • Brake pedal: Not depressed
  • Battery voltage: 12 - 13.5 V (Be sure to check the value of battery voltage by selecting "BATTERY VOLT" in "Data monitor" of CONSULT.)

>> GO TO 5.

4.REPLACE ECM

Replace ECM.

>> GO TO 5.

5.PERFORM INITIALIZATION OF NATS SYSTEM AND REGISTRATION OF ALL NATS IGNITION KEY IDS

>> GO TO 6.

6.PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING

Refer to EC, "Work Procedure".

>> GO TO 7.

7.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Refer to EC, "Work Procedure".

>> GO TO 8.

8.PERFORM IDLE AIR VOLUME LEARNING

Refer to EC, "Work Procedure".

>> END

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    Nissan Versa Sedan Service Manual / Engine / Engine control system (EC) / Additional service when replacing ECM

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