Nissan Sentra manuals

Nissan Sentra Service Manual: Additional service when replacing ecm

Nissan Sentra Service Manual / Engine / Engine control system / Basic inspection / Additional service when replacing ecm

Description

When replacing ECM, the following procedure must be performed. (For details, refer to EC-135, "Work Procedure".)

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.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:

>> GO TO 2.

2.CHECK ECM PART NUMBER

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

NOTE:

Is the ECM a blank ECM? YES >> GO TO 3.

NO >> GO TO 5.

3.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:

>> GO TO 4.

4.PERFORM ECM PROGRAMMING

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

NOTE:

>> GO TO 6.

5.REPLACE ECM

Replace ECM. Refer to EC-485, "Removal and Installation".

>> GO TO 6.

6.PERFORM INITIALIZATION OF IVIS (NATS) SYSTEM AND REGISTRATION OF ALL IVIS (NATS) IGNITION KEY IDS

Refer to SEC-61, "ECM : Work Procedure" (With Intelligent Key System) or SEC-174, "ECM : Work Procedure" (Without Intelligent Key System).

>> GO TO 7.

7.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 8.

NO >> GO TO 9.

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 10.

9.PERFORM VIN REGISTRATION

Refer to EC-137, "Work Procedure".

>> GO TO 10.

10.PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING

Perform Accelerator Pedal Released Position Learning. Refer to EC-138, "Work Procedure".

>> GO TO 11.

11.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Perform Throttle Valve Closed Position Learning. Refer to EC-139, "Work Procedure".

>> GO TO 12.

12.PERFORM IDLE AIR VOLUME LEARNING

Perform Idle Air Volume Learning. Refer to EC-140, "Work Procedure".

>> END

Basic inspection
Work Procedure 1.INSPECTION START Check service records for any recent repairs that may indicate a related malfunction, or a current need for scheduled maintenance. Open engine hood and ch ...

Vin registration
Description VIN Registration is an operation to registering VIN in ECM. It must be performed each time ECM is replaced. NOTE: Accurate VIN which is registered in ECM may be required for Inspectio ...

Other materials:

Engine block heater (if so equipped)
Engine block heaters are used to assist with cold temperature starting. The engine block heater should be used when the outside temperature is 20°F (-7°C) or lower. WARNING Do not use your engine block heater with an ungrounded electrical system or a 2-pronged adapter. You ...

Output speed sensor
Exploded View Transaxle assembly Output speed sensor O-ring : Vehicle front : Always replace after every disassembly. : NВ·m (kg-m, in-lb) : Genuine NISSAN CVT Fluid NS-3 Removal and Installation REMOVAL Disconnect the output speed sensor harness connector. Remove ...

VDC/TCS/ABS
Symptom Table If ABS warning lamp and SLIP indicator lamp turn ON, perform self-diagnosis. NOTE: 1: The ABS does not operate when the speed is 10 km/h (6 MPH) or less. 2: Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly depr ...

© 2014-2020 Copyright www.nisentra.com