Nissan Sentra. Manual - part 360

EC-136

< BASIC INSPECTION >

[MRA8DE]

ADDITIONAL SERVICE WHEN REPLACING 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) IGNI-

TION KEY IDS
Refer to 

SEC-61, "ECM : Work Procedure"

 (With Intelligent Key System) or 

SEC-174, "ECM : Work Proce-

dure"

 (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

VIN REGISTRATION

EC-137

< BASIC INSPECTION >

[MRA8DE]

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VIN REGISTRATION

Description

INFOID:0000000009758401

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 Inspection & Maintenance (I/M).

Work Procedure

INFOID:0000000009758402

1.

CHECK VIN

Check the VIN of the vehicle and note it. Refer to 

GI-23, "Identification Number"

.

>> GO TO 2.

2.

PERFORM VIN REGISTRATION

With CONSULT

1. Turn ignition switch ON and engine stopped.

2. Select “VIN REGISTRATION” in “WORK SUPPORT” mode of “ENGINE” using CONSULT.

3. Follow the instruction of CONSULT display.

>> END

EC-138

< BASIC INSPECTION >

[MRA8DE]

ACCELERATOR PEDAL RELEASED POSITION LEARNING

ACCELERATOR PEDAL RELEASED POSITION LEARNING

Description

INFOID:0000000009758403

Accelerator Pedal Released Position Learning is a function of ECM to learn the fully released position of the

accelerator pedal by monitoring the accelerator pedal position sensor output signal. It must be performed each

time harness connector of accelerator pedal position sensor or ECM is disconnected.

Work Procedure

INFOID:0000000009758404

1.

START

1. Make sure that accelerator pedal is fully released.

2. Turn ignition switch ON and wait at least 2 seconds.

3. Turn ignition switch OFF and wait at least 10 seconds.

4. Turn ignition switch ON and wait at least 2 seconds.

5. Turn ignition switch OFF and wait at least 10 seconds.

>> END

THROTTLE VALVE CLOSED POSITION LEARNING

EC-139

< BASIC INSPECTION >

[MRA8DE]

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THROTTLE VALVE CLOSED POSITION LEARNING

Description

INFOID:0000000009758405

Throttle Valve Closed Position Learning is a function of ECM to learn the fully closed position of the throttle

valve by monitoring the throttle position sensor output signal. It must be performed each time the harness con-

nector of the electric throttle control actuator or ECM is disconnected or electric throttle control actuator inside

is cleaned.

Work Procedure

INFOID:0000000009758406

1.

START

With CONSULT

1. Turn ignition switch ON.

2. Select “CLSD THL POS LEARN” in “WORK SUPPORT” mode of “ENGINE” using CONSULT.

3. Follow the instructions on the CONSULT display.

4. Turn ignition switch OFF and wait at least 10 seconds.

Check that throttle valve moves during the above 10 seconds by confirming the operating sound.

Without CONSULT

1. Start the engine.

NOTE:

Engine coolant temperature is 25

°C (77°F) or less before engine starts.

2. Warm up the engine.

NOTE:

Raise engine coolant temperature until it reaches 65

°C (149°F) or more.

3. Turn ignition switch OFF and wait at least 10 seconds.

Check that throttle valve moves during the above 10 seconds by confirming the operating sound.

>> END