Nissan Murano. Manual - part 589

EC-466

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

REFRIGERANT PRESSURE SENSOR

3.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors F123, E6
• IPDM E/R harness connectors E10, E346
• Harness for open or short between ECM and refrigerant pressure sensor

>> Repair open circuit, short to ground or short to power in harness or connectors.

4.

CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec-
tor.

4.

Also check harness for short to ground and short to power.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors F123, E6
• IPDM E/R harness connectors E10, E346
• Harness for open or short between ECM and refrigerant pressure sensor

>> Repair open circuit, short to ground or short to power in harness or connectors.

6.

CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec-
tor.

2.

Also check harness for short to ground and short to power.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> GO TO 7.

7.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors F123, E6
• IPDM E/R harness connectors E10, E346
• Harness for open or short between ECM and refrigerant pressure sensor

>> Repair open circuit, short to ground or short to power in harness or connectors.

8.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace refrigerant pressure sensor. Refer to 

HA-54, "Exploded View"

.

Refrigerant pressure sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

E300

3

F8

40

Existed

Refrigerant pressure sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

E300

2

F8

39

Existed

REFRIGERANT PRESSURE SENSOR

EC-467

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

C

D

E

F

G

H

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A

EC

N

P

O

NO

>> Repair or replace malfunctioning part. 

EC-468

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

VARIABLE INDUCTION AIR SYSTEM

VARIABLE INDUCTION AIR SYSTEM

Description

INFOID:0000000009720237

Power Valves 1 and 2

The power valves 1 and 2 are installed in intake manifold collector and used to control the suction passage of
the variable induction air control system. They are set in the fully closed or fully opened position by the power
valve actuators 1 and 2 operated by the vacuum stored in the vacuum tank. The vacuum to power valve actu-
ators is controlled by the VIAS control solenoid valves 1 and 2.

Component Function Check

INFOID:0000000009720238

1.

CHECK OVERALL FUNCTION-I

 With CONSULT

1.

Start engine and warm it up to the normal operating temperature.

2.

Perform “VIAS S/V-1” in “ACTIVE TEST” mode with CONSULT.

3.

Turn VIAS control solenoid valve 1 “ON” and “OFF”, and check that power valve actuator 1 rod moves.

 Without CONSULT

1.

Start engine and warm it up to the normal operating temperature.

2.

Rev engine quickly up to approximately 5,000 rpm.

3.

Check that power valve actuator 1 rod moves.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>>

EC-469, "Diagnosis Procedure"

.

2.

CHECK OVERALL FUNCTION-II

 With CONSULT

1.

Power valve actuator 1

2.

Power valve actuator 1 rod

3.

Power valve actuator 2

4.

Power valve actuator 2 rod

: Vehicle front

1.

Power valve actuator 1

2.

Power valve actuator 1 rod

3.

Power valve actuator 2

4.

Power valve actuator 2 rod

: Vehicle front

JMBIA1129ZZ

JMBIA1386ZZ

VARIABLE INDUCTION AIR SYSTEM

EC-469

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

C

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N

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O

1.

Perform “VIAS S/V-2” in “ACTIVE TEST” mode with CONSULT.

2.

Turn VIAS control solenoid valve 2 “ON” and “OFF”, and check that power valve actuator 2 rod moves.

 Without CONSULT

1.

When revving engine up to 5,000 rpm quickly.

2.

Rev engine quickly up to approximately 5,000 rpm.

3.

Check that power valve actuator 2 rod moves.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>>

EC-469, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009720239

1.

INSPECTION START

Confirm the malfunctioning system (power valve 1 or power valve 2). Refer to 

EC-468, "Component Function

Check"

.

Which system is related to the incident?

Power valve 1>>GO TO 2.
Power valve 2>>GO TO 6.

2.

CHECK VACUUM EXISTENCE-I

 With CONSULT

1.

Stop engine and disconnect vacuum hose connected to power valve actuator 1.

2.

Start engine and let it idle.

3.

Perform “VIAS S/V-1” in “ACTIVE TEST” mode with CONSULT.

4.

Turn VIAS control solenoid valve 1 ON and OFF, and check vacuum existence under the following condi-
tions.

1.

Power valve actuator 1

2.

Power valve actuator 1 rod

3.

Power valve actuator 2

4.

Power valve actuator 2 rod

: Vehicle front

1.

Power valve actuator 1

2.

Power valve actuator 1 rod

3.

Power valve actuator 2

4.

Power valve actuator 2 rod

: Vehicle front

JMBIA1129ZZ

JMBIA1386ZZ