Nissan Altima HL32 Hybrid. Manual - part 257

EC-12

< BASIC INSPECTION >

[QR25DE]

INSPECTION AND ADJUSTMENT

6.

CHECK TARGET IDLE SPEED AGAIN

1. Activate “INSPECTION MODE 1” (

HBC-104

) to start engine, and warm up engine until engine coolant

temperature.

2. Shift the selector lever to N position with engine running.

3. Check idle speed.

For procedure, refer to 

EC-14, "IDLE SPEED : Special Repair Requirement"

.

For specification, refer to 

EC-470, "Idle Speed"

.

CAUTION:

Never leave the selector lever in the N position for a long period of time. In the N position, the

engine operates but electricity cannot be generated.

4. Shift the selector lever to P position.
Is the inspection result normal?

YES

>> GO TO 9.

NO

>> GO TO 7.

7.

DETECT MALFUNCTIONING PART

Check the Following.

• Check camshaft position sensor (PHASE) and circuit. Refer to 

EC-255, "DTC Logic"

.

• Check crankshaft position sensor (POS) and circuit. Refer to 

EC-251, "DTC Logic"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace. Then GO TO 4.

8.

CHECK ECM FUNCTION

Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but this

is a rare case.)

>> GO TO 4.

9.

CHECK IGNITION TIMING

1. Run engine at idle.

2. Shift the selector lever to N position with engine running.

3. Check ignition timing with a timing light.

For procedure, refer to 

EC-14, "IGNITION TIMING : Special Repair Requirement"

.

For specification, refer to 

EC-470, "Ignition Timing"

.

CAUTION:

Never leave the selector lever in the N position for a long period of time. In the N position, the

engine operates but electricity cannot be generated.

4. Shift the selector lever to P position.
Is the inspection result normal?

YES

>> GO TO 17.

NO

>> GO TO 10.

10.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

1. Turn ignition switch OFF.

2. Perform 

EC-15, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"

.

>> GO TO 11.

11.

PERFORM IDLE AIR VOLUME LEARNING

Perform 

EC-16, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"

.

Is Idle Air Volume Learning carried out successfully?

YES

>> GO TO 12.

NO

>> Follow the instruction of Idle Air Volume Learning. Then GO TO 4.

12.

CHECK TARGET IDLE SPEED AGAIN

INSPECTION AND ADJUSTMENT

EC-13

< BASIC INSPECTION >

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1. Activate “INSPECTION MODE 1” (

HBC-104

) to start engine, and warm up engine until engine coolant

temperature.

2. Shift the selector lever to N position with engine running.

3. Check idle speed.

For procedure, refer to 

EC-14, "IDLE SPEED : Special Repair Requirement"

.

For specification, refer to 

EC-470, "Idle Speed"

.

CAUTION:

Never leave the selector lever in the N position for a long period of time. In the N position, the

engine operates but electricity cannot be generated.

4. Shift the selector lever to P position.
Is the inspection result normal?

YES

>> GO TO 13.

NO

>> GO TO 15.

13.

CHECK IGNITION TIMING AGAIN

1. Run engine at idle.

2. Shift the selector lever to N position with engine running.

3. Check ignition timing with a timing light.

For procedure, refer to 

EC-14, "IGNITION TIMING : Special Repair Requirement"

.

For specification, refer to 

EC-470, "Ignition Timing"

.

CAUTION:

Never leave the selector lever in the N position for a long period of time. In the N position, the

engine operates but electricity cannot be generated.

4. Shift the selector lever to P position.
Is the inspection result normal?

YES

>> GO TO 17.

NO

>> GO TO 14.

14.

CHECK TIMING CHAIN INSTALLATION

Check timing chain installation. Refer to 

EM-51, "Removal and Installation"

.

Is the inspection result normal?

YES

>> GO TO 15.

NO

>> Repair the timing chain installation. Then GO TO 4.

15.

DETECT MALFUNCTIONING PART

Check the following.

• Check camshaft position sensor (PHASE) and circuit. Refer to 

EC-255, "DTC Logic"

.

• Check crankshaft position sensor (POS) and circuit. Refer to 

EC-251, "DTC Logic"

.

Is the inspection result normal?

YES

>> GO TO 16.

NO

>> Repair or replace. Then GO TO 4.

16.

CHECK ECM FUNCTION 

Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but this

is a rare case.)

>> GO TO 4.

17.

INSPECTION END

If ECM is replaced during this BASIC INSPECTION procedure, go to 

EC-14, "ADDITIONAL SERVICE WHEN

REPLACING CONTROL UNIT : Special Repair Requirement"

.

>> INSPECTION END

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT

EC-14

< BASIC INSPECTION >

[QR25DE]

INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description

INFOID:0000000004211304

When replacing ECM, this procedure must be performed.

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement

INFOID:0000000004211305

1.

PERFORM VIN REGISTRATION

Refer to 

EC-14, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Require-

ment"

.

>> GO TO 2.

2.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Refer to 

EC-14, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Require-

ment"

.

>> GO TO 3.

3.

PERFORM IDLE AIR VOLUME LEARNING 

Refer to 

EC-14, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Require-

ment"

.

>> END

IDLE SPEED
IDLE SPEED : Description

INFOID:0000000004211306

This describes how to check the idle speed. For the actual procedure, follow the instructions in “BASIC

INSPECTION”.

IDLE SPEED : Special Repair Requirement

INFOID:0000000004211307

1.

CHECK IDLE SPEED

With CONSULT-III

Check idle speed in “DATA MONITOR” mode with CONSULT-III.

With GST

Check idle speed with Service $01 of GST.

>> INSPECTION END

IGNITION TIMING
IGNITION TIMING : Description

INFOID:0000000004211308

This describes how to check the ignition timing. For the actual procedure, follow the instructions in “BASIC

INSPECTION”.

IGNITION TIMING : Special Repair Requirement

INFOID:0000000004211309

1.

CHECK IGNITION TIMING

INSPECTION AND ADJUSTMENT

EC-15

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1. Attach timing light to No. 1 igniton coil (1) wire as shown.

2. Check ignition timing.

>> INSPECTION END

VIN REGISTRATION
VIN REGISTRATION : Description

INFOID:0000000004211310

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).

VIN REGISTRATION : Special Repair Requirement

INFOID:0000000004211311

1.

CHECK VIN

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

GI-21, "Identification Number"

.

>> GO TO 2.

2.

PERFORM VIN REGISTRATION

With CONSULT-III

1. Turn ignition switch ON.

2. Select “VIN REGISTRATION” in “WORK SUPPORT” mode.

3. Follow the instruction of CONSULT-III display.

>> END

THROTTLE VALVE CLOSED POSITION LEARNING
THROTTLE VALVE CLOSED POSITION LEARNING : Description

INFOID:0000000004211312

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 harness connec-

tor of electric throttle control actuator or ECM is disconnected.

THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement

INFOID:0000000004211313

1.

START

1. Make sure that accelerator pedal is fully released.

A

:  Timing  light

: Vehicle front

ALBIA0135ZZ

1

: Timing indicator

ALBIA0048ZZ