Nissan Murano Z51 (2008 year). Manual

EC-136

< COMPONENT DIAGNOSIS >

[VQ35DE]

POWER SUPPLY AND GROUND CIRCUIT

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

CHECK ECM POWER SUPPLY CIRCUIT-II

Check the voltage between ECM harness connector terminals.

Is the inspection result normal?

YES

>> GO TO 7.

>> GO TO 9.

CHECK ECM POWER SUPPLY CIRCUIT-III

Turn ignition switch ON.

Check the voltage between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

>> Replace IPDM E/R.

CHECK INTERMITTENT INCIDENT

Refer to

GI-40, "Intermittent Incident"

>> INSPECTION END

CHECK ECM POWER SUPPLY CIRCUIT-IV

Turn ignition switch OFF and wait at least 10 seconds.

Check the voltage between ECM harness connector terminals.

Is the inspection result normal?

YES

>> GO TO 12.

>> GO TO 10.

10.

CHECK ECM POWER SUPPLY CIRCUIT-V

Disconnect ECM harness connector.

Disconnect IPDM E/R harness connector.

Check the continuity between ECM harness connector and IPDM E/R harness connector.

ECM

Condition

Voltage

Connector

–

Terminal

E16

105

112

Ignition switch
ON

→

OFF

After turning ignition switch OFF, battery
voltage will exist for a few seconds, then
drop to approximately 0 V.

IPDM E/R

Ground

Voltage

Connector

Terminal

F12

Ground

Battery voltage

ECM

Voltage

–

Connector

Terminal

Connector

Terminal

E16

112

Battery voltage

ECM

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

F12

Existed

Revision: 2008 October

2009 Murano

POWER SUPPLY AND GROUND CIRCUIT

EC-137

< COMPONENT DIAGNOSIS >

[VQ35DE]

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

Is the inspection result normal?

YES

>> GO TO 11.

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

11.

CHECK 15 A FUSE

Disconnect 15 A fuse (No. 50) from IPDM E/R.

Check 15 A fuse.

Is the inspection result normal?

YES

>> GO TO 13.

>> Replace 15 A fuse.

12.

CHECK ECM POWER SUPPLY CIRCUIT-VI

Disconnect ECM harness connector.

Disconnect IPDM E/R harness connector.

Check the continuity between ECM harness connector and IPDM E/R harness connector.

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

Is the inspection result normal?

YES

>> GO TO 13.

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

13.

CHECK INTERMITTENT INCIDENT

Refer to

GI-40, "Intermittent Incident"

Is the inspection result normal?

YES

>> Replace IPDM E/R.

>> Repair or replace harness or connectors.

ECM

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

E16

105

E10

Existed

Revision: 2008 October

2009 Murano

EC-138

< COMPONENT DIAGNOSIS >

[VQ35DE]

U0101 CAN COMM CIRCUIT

U0101 CAN COMM CIRCUIT

Description

INFOID:0000000004734288

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.

DTC Logic

INFOID:0000000004734289

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

Turn ignition switch ON and wait at least 3 seconds.

Check DTC.

Is DTC detected?

YES

EC-138, "Diagnosis Procedure"

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000004734290

Go to

LAN-16, "Trouble Diagnosis Flow Chart"

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

U0101

Lost communication
with TCM

When ECM is not transmitting or receiving CAN
communication signal of OBD (emission-related
diagnosis) with TCM for 2 seconds or more.

• CAN communication line between

TCM and ECM

• CAN communication line open or

shorted

Revision: 2008 October

2009 Murano

U0164 CAN COMM CIRCUIT

EC-139

< COMPONENT DIAGNOSIS >

[VQ35DE]

U0164 CAN COMM CIRCUIT

Description

INFOID:0000000004734291

DTC Logic

INFOID:0000000004734292

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

Turn ignition switch ON and wait at least 3 seconds.

Check DTC.

Is DTC detected?

YES

EC-139, "Diagnosis Procedure"

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000004734293

Go to

LAN-16, "Trouble Diagnosis Flow Chart"

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

U0164

Lost communication
with Unified meter and
A/C amp.

When ECM is not transmitting or receiving CAN com-
munication signal of OBD (emission related diagno-
sis) with Unified meter and A/C amp. for 2 seconds or
more.

• CAN communication line between

Unified meter and A/C amp. and
ECM

• CAN communication line open or

shorted

Revision: 2008 October

2009 Murano

EC-140

< COMPONENT DIAGNOSIS >

[VQ35DE]

U1000, U1001 CAN COMM CIRCUIT

U1000, U1001 CAN COMM CIRCUIT

Description

INFOID:0000000003387933

DTC Logic

INFOID:0000000003387934

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

Turn ignition switch ON and wait at least 3 seconds.

Check DTC.

Is DTC detected?

YES

EC-140, "Diagnosis Procedure"

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003387935

Go to

LAN-16, "Trouble Diagnosis Flow Chart"

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

U1000

CAN communication
line

When ECM is not transmitting or receiving CAN com-
munication signal of OBD (emission related diagno-
sis) for 2 seconds or more.

• Harness or connectors

(CAN communication line is open or
shorted)

U1001

When ECM is not transmitting or receiving CAN com-
munication signal other than OBD (emission related
diagnosis) for 2 seconds or more.

Revision: 2008 October

2009 Murano

P0011, P0021 IVT CONTROL

EC-141

< COMPONENT DIAGNOSIS >

[VQ35DE]

P0011, P0021 IVT CONTROL

DTC Logic

INFOID:0000000003387939

DTC DETECTION LOGIC

NOTE:
If DTC P0011 or P0021 is displayed with DTC P0075 or P0081, first perform the trouble diagnosis for
DTC P0075, P0081. Refer to

EC-151, "DTC Logic"

DTC CONFIRMATION PROCEDURE

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next test.
1.

Turn ignition switch OFF and wait at least 10 seconds.

Turn ignition switch ON.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is between 10 V and 16 V at
idle.

>> GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE-I

With CONSULT-III

Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.

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

Maintain the following conditions for at least 6 consecutive seconds. Hold the accelerator pedal as steady
as possible.

CAUTION:

Always drive at a safe speed.

Stop vehicle with engine running and let engine idle for 10 seconds.

Check 1st trip DTC.

With GST

Follow the procedure “With CONSULT-III” above.
Is 1st trip DTC detected?

YES

>> Go to

EC-142, "Diagnosis Procedure"

>> GO TO 3.

PERFORM DTC CONFIRMATION PROCEDURE-II

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

P0011

Intake valve timing
control performance
(bank 1)

There is a gap between angle of target and
phase-control angle degree.

• Crankshaft position sensor (POS)
• Camshaft position sensor (PHASE)
• Intake valve timing control solenoid valve
• Accumulation of debris to the signal pick-up

portion of the camshaft

• Timing chain installation
• Foreign matter caught in the oil groove for in-

take valve timing control

P0021

Intake valve timing
control performance
(bank 2)

VHCL SPEED SE

100 - 120 km/h (63 - 75 mph)

ENG SPEED

2,000 - 4,000 rpm

COOLAN TEMP/S

More than 60

C (140

B/FUEL SCHDL

More than 7.3 msec

Selector lever

D position

Revision: 2008 October

2009 Murano

EC-142

< COMPONENT DIAGNOSIS >

[VQ35DE]

P0011, P0021 IVT CONTROL

With CONSULT-III

Maintain the following conditions for at least 20 consecutive seconds.

CAUTION:

Always drive at a safe speed.

Check 1st trip DTC.

With GST

Follow the procedure “With CONSULT-III” above.

Is 1st trip DTC detected?

YES

>> Go to

EC-142, "Diagnosis Procedure"

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003387940

CHECK OIL PRESSURE WARNING LAMP

Start engine.

Check oil pressure warning lamp and confirm it is not illumi-
nated.

Is oil pressure warming lamp illuminated?

YES

>> Go to

LU-7, "Inspection"

>> GO TO 2.

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE

Refer to

EC-143, "Component Inspection"

Is the inspection result normal?

YES

>> GO TO 3.

>> Replace malfunctioning intake valve timing control solenoid valve.

CHECK CRANKSHAFT POSITION SENSOR (POS)

Refer to

EC-263, "Component Inspection"

Is the inspection result normal?

YES

>> GO TO 4.

>> Replace crankshaft position sensor (POS).

CHECK CAMSHAFT POSITION SENSOR (PHASE)

Refer to

EC-266, "Component Inspection"

Is the inspection result normal?

YES

>> GO TO 5.

>> Replace malfunctioning camshaft position sensor (PHASE).

CHECK CAMSHAFT (INTAKE)

Check the following.

ENG SPEED

1,400 - 3,175 rpm (A constant rotation is maintained.)

COOLAN TEMP/S

More than 70

C (158

Selector lever

1st or 2nd position

Driving location uphill

Driving vehicle uphill
(Increased engine load will help maintain the driving conditions re-
quired for this test.)

PBIA8559J

Revision: 2008 October

2009 Murano

P0011, P0021 IVT CONTROL

EC-143

< COMPONENT DIAGNOSIS >

[VQ35DE]

• Accumulation of debris on the signal plate of camshaft rear end
• Chipping signal plate of camshaft rear end
Is the inspection result normal?

YES

>> GO TO 6.

>> Remove debris and clean the signal plate of camshaft

rear end or replace camshaft.

CHECK TIMING CHAIN INSTALLATION

Check service records for any recent repairs that may cause timing chain misalignment.

Are there any service records that may cause timing chain misalignment?

YES

>> Check timing chain installation. Refer to

EM-54, "Removal and Installation"

>> GO TO 7.

CHECK LUBRICATION CIRCUIT

Refer to

EM-18, "Inspection and Adjustment"

Is the inspection result normal?

YES

>> GO TO 8.

>> Clean lubrication line.

CHECK INTERMITTENT INCIDENT

Refer to

GI-40, "Intermittent Incident"

>> INSPECTION END

Component Inspection

INFOID:0000000003387941

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE-I

Disconnect intake valve timing control solenoid valve harness connector.

Check resistance between intake valve timing control solenoid valve terminals as per the following.

Is the inspection result normal?

YES

>> GO TO 2.

>> Replace malfunctioning intake valve timing control solenoid valve.

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE-II

Remove intake valve timing control solenoid valve.

Provide 12 V DC between intake valve timing control solenoid
valve terminals 1 and 2, and then interrupt it. Check that the
plunger moves as shown in the figure.

CAUTION:

Never apply 12 V DC continuously for 5 seconds or more.
Doing so may result in damage to the coil in intake valve
timing control solenoid valve.
NOTE:
Always replace O-ring when intake valve timing control
solenoid valve is removed.

Is the inspection result normal?

YES

>> INSPECTION END

JMBIA0058ZZ

Terminals

Resistance

1 and 2

7.0 - 7.5

Ω

[at 20

C (68

F)]

1 or 2 and ground

∞Ω

(Continuity should not exist)

JMBIA0079ZZ

Revision: 2008 October

2009 Murano

P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER

EC-145

< COMPONENT DIAGNOSIS >

[VQ35DE]

P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER

Description

INFOID:0000000003387942

SYSTEM DESCRIPTION

The ECM performs ON/OFF duty control of the A/F sensor 1 heater corresponding to the engine operating
condition to keep the temperature of A/F sensor 1 element within the specified range.

DTC Logic

INFOID:0000000003387943

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next test.
1.

Turn ignition switch OFF and wait at least 10 seconds.

Turn ignition switch ON.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.

>> GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

Start engine and let it idle for at least 10 seconds.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Go to

EC-145, "Diagnosis Procedure"

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003387944

CHECK GROUND CONNECTION

Sensor

Input signal to ECM

ECM function

Actuator

Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)

Engine speed

Air fuel ratio (A/F) sensor 1
heater control

Air fuel ratio (A/F) sensor 1
heater

Mass air flow sensor

Amount of intake air

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0031

Air fuel ratio (A/F) sensor
1 heater (bank 1) control
circuit low

The current amperage in the A/F sensor 1 heater
circuit is out of the normal range.
(An excessively low voltage signal is sent to ECM
through the A/F sensor 1 heater.)

• Harness or connectors

(The A/F sensor 1 heater circuit is
open or shorted.)

• A/F sensor 1 heater

P0032

Air fuel ratio (A/F) sensor
1 heater (bank 1) control
circuit high

The current amperage in the A/F sensor 1 heater
circuit is out of the normal range.
(An excessively high voltage signal is sent to ECM
through the A/F sensor 1 heater.)

• Harness or connectors

(The A/F sensor 1 heater circuit is
shorted.)

• A/F sensor 1 heater

P0051

Air fuel ratio (A/F) sensor
1 heater (bank 2) control
circuit low

The current amperage in the A/F sensor 1 heater
circuit is out of the normal range.
(An excessively low voltage signal is sent to ECM
through the A/F sensor 1 heater.)

• Harness or connectors

(The A/F sensor 1 heater circuit is
open or shorted.)

• A/F sensor 1 heater

P0052

Air fuel ratio (A/F) sensor
1 heater (bank 2) control
circuit high

The current amperage in the A/F sensor 1 heater
circuit is out of the normal range.
(An excessively high voltage signal is sent to ECM
through the A/F sensor 1 heater.)

• Harness or connectors

(The A/F sensor 1 heater circuit is
shorted.)

• A/F sensor 1 heater

Revision: 2008 October

2009 Murano

EC-146

< COMPONENT DIAGNOSIS >

[VQ35DE]

P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER

Turn ignition switch OFF.

Check ground connection E38. Refer to Ground Inspection in

GI-40, "Intermittent Incident"

Is the inspection result normal?

YES

>> GO TO 2.

>> Repair or replace ground connection.

CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT

Disconnect air fuel ratio (A/F) sensor 1 harness connector.

Turn ignition switch ON.

Check the voltage between A/F sensor 1 harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

>> GO TO 3.

DETECT MALFUNCTIONING PART

Check the following.
• IPDM E/R harness connector F12
• 15 A fuse (No. 46)
• Harness for open or short between A/F sensor 1 and fuse

>> Repair or replace harness or connectors.

CHECK A/F SENSOR 1 HEATER OUTPUT SIGNAL CIRCUIT

Turn ignition switch OFF.

Disconnect ECM harness connector.

Check harness continuity between A/F sensor 1 harness connector and ECM harness connector.

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

Is the inspection result normal?

YES

>> GO TO 5.

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

CHECK A/F SENSOR 1 HEATER

Refer to

EC-147, "Component Inspection"

Is the inspection result normal?

YES

>> GO TO 7.

>> GO TO 6.

REPLACE AIR FUEL RATIO (A/F) SENSOR 1

Replace malfunctioning air fuel ratio (A/F) sensor 1.

CAUTION:

• Discard any A/F sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a

hard surface such as a concrete floor; use a new one.

• Before installing new A/F sensor, clean exhaust system threads using Oxygen Sensor Thread

Cleaner [commercial service tool (J-43897-18 or J-43897-12)] and approved anti-seize lubricant
(commercial service tool).

DTC

A/F sensor 1

Ground

Voltage

Bank

Connector

Terminal

P0031, P0032

F27

Ground

Battery voltage

P0051, P0052

F64

DTC

A/F sensor 1

ECM

Continuity

Bank

Connector

Terminal

Connector

Terminal

P0031, P0032

F27

Existed

P0051, P0052

F64

Revision: 2008 October

2009 Murano

P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER

EC-147

< COMPONENT DIAGNOSIS >

[VQ35DE]

>> INSPECTION END

CHECK INTERMITTENT INCIDENT

Perform

GI-40, "Intermittent Incident"

>> INSPECTION END

Component Inspection

INFOID:0000000003387945

CHECK AIR FUEL RATIO (A/F) SENSOR 1

Check resistance between A/F sensor terminals as per the following.

Is the inspection result normal?

YES

>> INSPECTION END

>> GO TO 2.

REPLACE AIR FUEL RATIO (A/F) SENSOR 1

Replace malfunctioning air fuel ratio (A/F) sensor 1.

CAUTION:

• Discard any (A/F) sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a

hard surface such as a concrete floor; use a new one.

• Before installing new (A/F) sensor, clean exhaust system threads using Heated Oxygen Sensor

Thread Cleaner [commercial service tool (J-43897-18 or J-43897-12)] and approved anti-seize lubri-
cant (commercial service tool).

>> INSPECTION END

Terminal No.

Resistance

3 and 4

1.8 - 2.44

Ω

[at 25

C (77

F)]

3 and 1, 2

∞

Ω

(Continuity should not exist)

4 and 1, 2

Revision: 2008 October

2009 Murano

EC-148

< COMPONENT DIAGNOSIS >

[VQ35DE]

P0037, P0038, P0057, P0058 HO2S2 HEATER

P0037, P0038, P0057, P0058 HO2S2 HEATER

Description

INFOID:0000000003387946

SYSTEM DESCRIPTION

The ECM performs ON/OFF control of the heated oxygen sensor 2 heater corresponding to the engine speed,
amount of intake air and engine coolant temperature.

OPERATION

DTC Logic

INFOID:0000000003387947

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next test.
1.

Turn ignition switch OFF and wait at least 10 seconds.

Turn ignition switch ON.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is between 10.5 V and 16 V at
idle.

>> GO TO 2.

Sensor

Input signal to ECM

ECM function

Actuator

Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)

Engine speed

Heated oxygen sensor 2
heater control

Heated oxygen sensor 2 heater

Engine coolant temperature sensor

Engine coolant temperature

Mass air flow sensor

Amount of intake air

Engine speed

Heated oxygen sensor 2 heater

Above 3,600 rpm

OFF

Below 3,600 rpm after the following conditions are met.
• Engine: After warming up
• Keeping the engine speed between 3,500 and 4,000 rpm for 1

minute and at idle for 1 minute under no load

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0037

Heated oxygen sensor 2
heater (bank 1) control
circuit low

The current amperage in the heated oxygen sensor
2 heater circuit is out of the normal range.
(An excessively low voltage signal is sent to ECM
through the heated oxygen sensor 2 heater.)

• Harness or connectors

(The heated oxygen sensor 2 heater
circuit is open or shorted.)

• Heated oxygen sensor 2 heater

P0038

Heated oxygen sensor 2
heater (bank 1) control
circuit high

The current amperage in the heated oxygen sensor
2 heater circuit is out of the normal range.
(An excessively high voltage signal is sent to ECM
through the heated oxygen sensor 2 heater.)

• Harness or connectors

(The heated oxygen sensor 2 heater
circuit is shorted.)

• Heated oxygen sensor 2 heater

P0057

Heated oxygen sensor 2
heater (bank 2) control
circuit low

The current amperage in the heated oxygen sensor
2 heater circuit is out of the normal range.
(An excessively low voltage signal is sent to ECM
through the heated oxygen sensor 2 heater.)

• Harness or connectors

(The heated oxygen sensor 2 heater
circuit is open or shorted.)

• Heated oxygen sensor 2 heater

P0058

Heated oxygen sensor 2
heater (bank 2) control
circuit high

The current amperage in the heated oxygen sensor
2 heater circuit is out of the normal range.
(An excessively high voltage signal is sent to ECM
through the heated oxygen sensor 2 heater.)

• Harness or connectors

(The heated oxygen sensor 2 heater
circuit is shorted.)

• Heated oxygen sensor 2 heater

Revision: 2008 October

2009 Murano

P0037, P0038, P0057, P0058 HO2S2 HEATER

EC-149

< COMPONENT DIAGNOSIS >

[VQ35DE]

PERFORM DTC CONFIRMATION PROCEDURE

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

Turn ignition switch OFF and wait at least 10 seconds.

Turn ignition switch ON.

Turn ignition switch OFF and wait at least 10 seconds.

Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.

Let engine idle for 1 minute.

Check 1st trip DTC.

Is 1st tip DTC detected?

YES

>> Go to

EC-149, "Diagnosis Procedure"

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003387948

CHECK GROUND CONNECTION

Turn ignition switch OFF.

Check ground connection E38. Refer to Ground Inspection in

GI-43, "Circuit Inspection"

Is the inspection result normal?

YES

>> GO TO 2.

>> Repair or replace ground connection.

CHECK HO2S2 POWER SUPPLY CIRCUIT

Disconnect heated oxygen sensor 2 (HO2S2) harness connector.

Turn ignition switch ON.

Check the voltage between HO2S2 harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

>> GO TO 3.

DETECT MALFUNCTIONING PART

Check the following.
• IPDM E/R connector F8
• 15 A fuse (No. 46)
• Harness for open or short between heated oxygen sensor 2 and fuse

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

CHECK HO2S2 OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

Turn ignition switch OFF.

Disconnect ECM harness connector.

Check the continuity between HO2S2 harness connector and ECM harness connector.

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

Is the inspection result normal?

YES

>> GO TO 5.

DTC

HO2S2

Ground

Voltage

Bank

Connector

Terminal

P0037, P0038

F70

Ground

Battery voltage

P0057, P0058

F71

DTC

HO2S2

ECM

Continuity

Bank

Connector

Terminal

Connector

Terminal

P0037, P0038

F70

Existed

P0057, P0058

F71

Revision: 2008 October

2009 Murano

EC-150

< COMPONENT DIAGNOSIS >

[VQ35DE]

P0037, P0038, P0057, P0058 HO2S2 HEATER

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

CHECK HEATED OXYGEN SENSOR 2 HEATER

Refer to

EC-150, "Component Inspection"

Is the inspection result normal?

YES

>> GO TO 7.

>> GO TO 6.

REPLACE HEATED OXYGEN SENSOR 2

Replace malfunctioning heated oxygen sensor 2.

CAUTION:

• Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7

in) onto a hard surface such as a concrete floor; use a new one.

• Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread

Cleaner [commercial service tool (J-43897-18 or J-43897-12)] and approved anti-seize lubricant
(commercial service tool).

>> INSPECTION END

CHECK INTERMITTENT INCIDENT

Refer to

GI-40, "Intermittent Incident"

>> INSPECTION END

Component Inspection

INFOID:0000000003387949

CHECK HEATED OXYGEN SENSOR 2 HEATER

Check resistance between HO2S2 terminals as per the following.

Is the inspection result normal?

YES

>> INSPECTION END

>> GO TO 2.

REPLACE HEATED OXYGEN SENSOR 2

Replace malfunctioning heated oxygen sensor 2.

CAUTION:

• Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7

in) onto a hard surface such as a concrete floor; use a new one.

• Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread

Cleaner [commercial service tool (J-43897-18 or J-43897-12)] and approved anti-seize lubricant
(commercial service tool).

>> INSPECTION END

Terminal No.

Resistance

2 and 3

3.4 - 4.4

Ω

[at 25

C (77

F)]

1 and 2, 3, 4

∞

Ω

(Continuity should not exist)

4 and 1, 2, 3

Revision: 2008 October

2009 Murano

P0075, P0081 IVT CONTROL SOLENOID VALVE

EC-151

< COMPONENT DIAGNOSIS >

[VQ35DE]

P0075, P0081 IVT CONTROL SOLENOID VALVE

Description

INFOID:0000000003387950

Intake valve timing control solenoid valve is activated by ON/OFF
pulse duty (ratio) signals from the ECM.
The intake valve timing control solenoid valve changes the oil
amount and direction of flow through intake valve timing control unit
or stops oil flow.
The longer pulse width advances valve timing.
The shorter pulse width retards valve timing.
When ON and OFF pulse widths become equal, the solenoid valve
stops oil pressure flow to fix the intake valve angle at the control
position.

DTC Logic

INFOID:0000000003387951

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next test.
1.

Turn ignition switch OFF and wait at least 10 seconds.

Turn ignition switch ON.

Turn ignition switch OFF and wait at least 10 seconds.

>> GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

Start engine and let it idle for 5 seconds.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Go to

EC-151, "Diagnosis Procedure"

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003387952

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT

Turn ignition switch OFF.

Disconnect intake valve timing (IVT) control solenoid valve harness connector.

Turn ignition switch ON.

Check the voltage between intake valve timing control solenoid valve harness connector and ground with
CONSULT-III or tester.

PBIB1842E

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0075

Intake valve timing control so-
lenoid valve (bank 1) circuit

An improper voltage is sent to the ECM
through intake valve timing control solenoid
valve.

• Harness or connectors

(Intake valve timing control solenoid valve
circuit is open or shorted.)

• Intake valve timing control solenoid valve

P0081

Intake valve timing control so-
lenoid valve (bank 2) circuit

DTC

IVT control solenoid valve

Ground

Voltage

Bank

Connector

Terminal

P0075

F81

Ground

Battery voltage

P0081

F82

Revision: 2008 October

2009 Murano

Nissan Murano Z51 (2008 year). Manual - part 145