Nissan Murano Z51 (2008 year). Manual - part 140

 

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Nissan Murano Z51 (2008 year). Manual - part 140

 

 

EC-56

< FUNCTION DIAGNOSIS >

[VQ35DE]

AUTOMATIC SPEED CONTROL DEVICE (ASCD)

JMBIA1832GB

1.

A/F sensor 1 (bank 1) harness con-
nector

2.

A/F sensor 1 (bank 1)

3.

A/F sensor 1 (bank 2) harness con-
nector

4.

A/F sensor 1 (bank 2)

: Vehicle front

1.

HO2S2 (bank 1)

2.

HO2S2 (bank 2)

3.

HO2S2 (bank 2) harness connector

4.

HO2S2 (bank 1) harness connector

5.

Power steering pressure sensor

6.

Drive shaft (RH)

: Vehicle front

JMBIA1116ZZ

JMBIA1117ZZ

Revision: 2008 October

2009 Murano

AUTOMATIC SPEED CONTROL DEVICE (ASCD)

EC-57

< FUNCTION DIAGNOSIS >

[VQ35DE]

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1.

Electronic controlled engine mount 
control solenoid valve

2.

VIAS control solenoid valve 1

3.

VIAS control solenoid valve 2

4.

EVAP canister purge volume control 
solenoid valve

5.

EVAP service port

6.

EVAP control system pressure sen-
sor

7.

EVAP canister vent control valve

8.

EVAP canister

: Vehicle front

1.

Intake valve timing control solenoid 
valve (bank 1)

2.

Intake valve timing control solenoid 
valve (bank 2)

3.

Data link connector

1.

Stop lamp switch

2.

ASCD brake switch

3.

Accelerator pedal position sensor

JMBIA1111ZZ

JMBIA1118ZZ

JMBIA1119ZZ

JMBIA1120ZZ

Revision: 2008 October

2009 Murano

EC-58

< FUNCTION DIAGNOSIS >

[VQ35DE]

AUTOMATIC SPEED CONTROL DEVICE (ASCD)

Component Description

INFOID:0000000003387904

1.

ASCD steering switch

2.

CANSEL switch

3.

RESUME/ACCELERATE switch

4.

SET/COAST switch

5.

MAIN switch

1.

Fuel level sensor unit and fuel pump 
harness connector

2.

Fuel level sensor unit and fuel pump 3.

Fuel pressure regulator

: Vehicle front

JMBIA1121ZZ

Component

Reference

ASCD brake switch

EC-380, "Description"

ASCD indicator

EC-433, "Description"

ASCD steering switch

EC-377, "Description"

Electric throttle control actuator

EC-411, "Description"

Stop lamp switch

EC-399, "Description"

Revision: 2008 October

2009 Murano

CAN COMMUNICATION

EC-59

< FUNCTION DIAGNOSIS >

[VQ35DE]

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CAN COMMUNICATION

System Description

INFOID:0000000003387905

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.
Refer to 

LAN-25, "CAN Communication Signal Chart"

, about CAN communication for detail.

Revision: 2008 October

2009 Murano

EC-60

< FUNCTION DIAGNOSIS >

[VQ35DE]

COOLING FAN CONTROL

COOLING FAN CONTROL

System Diagram

INFOID:0000000003387906

System Description

INFOID:0000000003387907

INPUT/OUTPUT SIGNAL CHART

*1: The ECM determines the start signal status by the signals of engine speed and battery voltage.

*2: This signal is sent to ECM via the CAN communication line.

SYSTEM DESCRIPTION

The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, refrigerant
pressure, and air conditioner ON signal. The control system has 4-step control [HIGH/MIDDLE/LOW/OFF].

JMBIA1857GB

Sensor

Input signal to ECM

ECM function

Actuator

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

Engine speed*

1

Piston position

Cooling fan 
control

IPDM E/R

↓

Cooling fan relay

↓

Cooling fan motor

Engine coolant temperature sensor

Engine coolant temperature

Refrigerant pressure sensor

Refrigerant pressure

Battery

Battery voltage*

1

Combination meter

Vehicle speed*

2

BCM

Air conditioner ON signal*

2

Revision: 2008 October

2009 Murano

COOLING FAN CONTROL

EC-61

< FUNCTION DIAGNOSIS >

[VQ35DE]

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Cooling Fan Operation

Cooling Fan Relay Operation

The ECM controls cooling fan relays in the IPDM E/R through CAN communication line.

JMBIA0179GB

Cooling fan speed

Cooling fan relay

1

2

3

Stop (OFF)

OFF

OFF

OFF

Low (LOW)

ON

OFF

OFF

Middle (MID)

OFF

ON

OFF

High (HI)

OFF

ON

ON

Revision: 2008 October

2009 Murano

EC-62

< FUNCTION DIAGNOSIS >

[VQ35DE]

COOLING FAN CONTROL

Component Parts Location

INFOID:0000000003573788

1.

Intake valve timing control solenoid 
valve (bank 1)

2.

Intake valve timing control solenoid 
valve (bank 2)

3.

Electronic controlled engine mount 
control solenoid valve

4.

Fuel injector (bank 2)

5.

A/F sensor 1 (bank 2)

6.

Cooling fan motor-2

7.

Ignition coil (with power transistor) 
and spark plug (bank 2)

8.

Camshaft position sensor (PHASE) 
(bank 2)

9.

Crankshaft position sensor (POS)

10. Engine coolant temperature sensor

11.

Cooling fan motor-1

12. ECM

13. Refrigerant pressure sensor

14. Battery current sensor

15. IPDM E/R

16. Mass air flow sensor (with intake air 

temperature sensor)

17. Electric throttle control actuator

18. EVAP service port

19. Power valve actuator 2

20. EVAP canister purge volume control 

solenoid valve

21. Camshaft position sensor (PHASE) 

(bank 1)

22. Ignition coil (with power transistor) 

and spark plug (bank 1)

23. A/F sensor 1 (bank 1)

24. Fuel injector (bank 1)

25. VIAS control solenoid valve 1 and 2

26. Power valve actuator 1

JMBIA1108ZZ

Revision: 2008 October

2009 Murano

COOLING FAN CONTROL

EC-63

< FUNCTION DIAGNOSIS >

[VQ35DE]

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1.

Mas air flow sensor (with intake air 
temperature sensor)

2.

Electric throttle control actuator

: Vehicle front

1.

Ignition coil (with power transistor) 
and spark plug (bank 1)

2.

Fuel injector (bank 1)

3.

Fuel injector (bank 2)

4.

Ignition coil (with power transistor) 
and spark plug (bank 2)

5.

Knock sensor (bank 2)

6.

Knock sensor (bank 1)

: Vehicle front

1.

Crankshaft position sensor (POS)

2.

Camshaft position sensor (PHASE) 
(bank 1)

3.

Camshaft position sensor (PHASE) 
(bank 2)

: Vehicle front

JMBIA1109ZZ

JMBIA1110ZZ

JMBIA1114ZZ

Revision: 2008 October

2009 Murano

EC-64

< FUNCTION DIAGNOSIS >

[VQ35DE]

COOLING FAN CONTROL

1.

Cooling fan motor-1

2.

Cooling fan motor-1 harness con-
nector

3.

Cooling fan motor-1 harness con-
nector

4.

Cooling fan motor-2

5.

Engine coolant temperature sensor

: Vehicle front

1.

Refrigerant pressure sensor

2.

Battery current sensor

: Vehicle front

1.

ECM

2.

IPDM E/R

3.

Fuel pump fuse

: Vehicle front

JMBIA1112ZZ

JMBIA1113ZZ

JMBIA1115ZZ

Revision: 2008 October

2009 Murano

COOLING FAN CONTROL

EC-65

< FUNCTION DIAGNOSIS >

[VQ35DE]

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JMBIA1832GB

1.

A/F sensor 1 (bank 1) harness con-
nector

2.

A/F sensor 1 (bank 1)

3.

A/F sensor 1 (bank 2) harness con-
nector

4.

A/F sensor 1 (bank 2)

: Vehicle front

1.

HO2S2 (bank 1)

2.

HO2S2 (bank 2)

3.

HO2S2 (bank 2) harness connector

4.

HO2S2 (bank 1) harness connector

5.

Power steering pressure sensor

6.

Drive shaft (RH)

: Vehicle front

JMBIA1116ZZ

JMBIA1117ZZ

Revision: 2008 October

2009 Murano

EC-66

< FUNCTION DIAGNOSIS >

[VQ35DE]

COOLING FAN CONTROL

1.

Electronic controlled engine mount 
control solenoid valve

2.

VIAS control solenoid valve 1

3.

VIAS control solenoid valve 2

4.

EVAP canister purge volume control 
solenoid valve

5.

EVAP service port

6.

EVAP control system pressure sen-
sor

7.

EVAP canister vent control valve

8.

EVAP canister

: Vehicle front

1.

Intake valve timing control solenoid 
valve (bank 1)

2.

Intake valve timing control solenoid 
valve (bank 2)

3.

Data link connector

1.

Stop lamp switch

2.

ASCD brake switch

3.

Accelerator pedal position sensor

JMBIA1111ZZ

JMBIA1118ZZ

JMBIA1119ZZ

JMBIA1120ZZ

Revision: 2008 October

2009 Murano

COOLING FAN CONTROL

EC-67

< FUNCTION DIAGNOSIS >

[VQ35DE]

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Component Description

INFOID:0000000003387909

1.

ASCD steering switch

2.

CANSEL switch

3.

RESUME/ACCELERATE switch

4.

SET/COAST switch

5.

MAIN switch

1.

Fuel level sensor unit and fuel pump 
harness connector

2.

Fuel level sensor unit and fuel pump 3.

Fuel pressure regulator

: Vehicle front

JMBIA1121ZZ

Component

Reference

Camshaft position sensor (PHASE)

EC-264, "Description"

Cooling fan motor

EC-434, "Description"

Crankshaft position sensor (POS)

EC-260, "Description"

Engine coolant temperature sensor

EC-170, "Description"

Refrigerant pressure sensor

EC-463, "Description"

Revision: 2008 October

2009 Murano

EC-68

< FUNCTION DIAGNOSIS >

[VQ35DE]

ELECTRONIC CONTROLLED ENGINE MOUNT

ELECTRONIC CONTROLLED ENGINE MOUNT

System Diagram

INFOID:0000000003387910

System Description

INFOID:0000000003387911

INPUT/OUTPUT SIGNAL CHART

*: This signal is sent to the ECM via the CAN communication line.

SYSTEM DESCRIPTION

The ECM controls the engine mount operation corresponding to the engine speed. The control system has a
2-step control [Soft/Hard]

ELECTRONIC CONTROLLED ENGINE MOUNT LINE DRAWING

JMBIA1827GB

Sensor

Input signal to ECM

ECM function

Actuator

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

Engine speed

Engine mount 
control

Electronic controlled en-
gine mount control solenoid 
valve

Combination meter

Vehicle speed*

Vehicle condition

Engine mount control

Engine speed: Below 950 rpm

Soft

Engine speed: Above 950 rpm

Hard

Revision: 2008 October

2009 Murano

ELECTRONIC CONTROLLED ENGINE MOUNT

EC-69

< FUNCTION DIAGNOSIS >

[VQ35DE]

C

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EC

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1.

Electronic controlled engine mount 
control solenoid valve

2.

Intake manifold collector

: From next figure

JMBIA2161ZZ

Revision: 2008 October

2009 Murano

EC-70

< FUNCTION DIAGNOSIS >

[VQ35DE]

ELECTRONIC CONTROLLED ENGINE MOUNT

NOTE:
Do not use soapy water or any type of solvent while installing vacuum hose.

1.

Front electronic controlled engine mount 2.

Rear electronic controlled engine mount

: To previous figure

JMBIA2072ZZ

Revision: 2008 October

2009 Murano

ELECTRONIC CONTROLLED ENGINE MOUNT

EC-71

< FUNCTION DIAGNOSIS >

[VQ35DE]

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Component Parts Location

INFOID:0000000003573789

1.

Intake valve timing control solenoid 
valve (bank 1)

2.

Intake valve timing control solenoid 
valve (bank 2)

3.

Electronic controlled engine mount 
control solenoid valve

4.

Fuel injector (bank 2)

5.

A/F sensor 1 (bank 2)

6.

Cooling fan motor-2

7.

Ignition coil (with power transistor) 
and spark plug (bank 2)

8.

Camshaft position sensor (PHASE) 
(bank 2)

9.

Crankshaft position sensor (POS)

10. Engine coolant temperature sensor

11.

Cooling fan motor-1

12. ECM

13. Refrigerant pressure sensor

14. Battery current sensor

15. IPDM E/R

16. Mass air flow sensor (with intake air 

temperature sensor)

17. Electric throttle control actuator

18. EVAP service port

19. Power valve actuator 2

20. EVAP canister purge volume control 

solenoid valve

21. Camshaft position sensor (PHASE) 

(bank 1)

22. Ignition coil (with power transistor) 

and spark plug (bank 1)

23. A/F sensor 1 (bank 1)

24. Fuel injector (bank 1)

25. VIAS control solenoid valve 1 and 2

26. Power valve actuator 1

JMBIA1108ZZ

Revision: 2008 October

2009 Murano

 

 

 

 

 

 

 

Content      ..     138      139      140      141     ..