Nissan Murano Z51 (2008 year). Manual — part 139
EC-40
< FUNCTION DIAGNOSIS >
[VQ35DE]
ELECTRIC IGNITION SYSTEM
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
ELECTRIC IGNITION SYSTEM
EC-41
< 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-42
< FUNCTION DIAGNOSIS >
[VQ35DE]
ELECTRIC IGNITION SYSTEM
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
ELECTRIC IGNITION SYSTEM
EC-43
< FUNCTION DIAGNOSIS >
[VQ35DE]
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Component Description
INFOID:0000000003387896
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
Accelerator pedal position sensor
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)
Engine coolant temperature sensor
Ignition signal
Knock sensor
Mass air flow sensor
TCM
Throttle position sensor
Revision: 2008 October
2009 Murano
EC-44
< FUNCTION DIAGNOSIS >
[VQ35DE]
AIR CONDITIONING CUT CONTROL
AIR CONDITIONING CUT CONTROL
System Diagram
INFOID:0000000003387897
System Description
INFOID:0000000003387898
INPUT/OUTPUT SIGNAL CHART
*1: This signal is sent to the ECM via the CAN communication line.
*2: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned OFF.
• When the accelerator pedal is fully depressed.
• When cranking the engine.
• At high engine speeds.
• When the engine coolant temperature becomes excessively high.
• When operating power steering during low engine speed or low vehicle speed.
• When engine speed is excessively low.
• When refrigerant pressure is excessively low or high.
JMBIA1835GB
Sensor
Input signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Engine speed*
2
Air conditioner
cut control
IPDM E/R
↓
Air conditioner relay
↓
Compressor
Engine coolant temperature sensor
Engine coolant temperature
Accelerator pedal position sensor
Accelerator pedal position
Battery
Battery voltage*
2
Refrigerant pressure sensor
Refrigerant pressure
Power steering pressure sensor
Power steering operation
Combination meter
Vehicle speed*
1
BCM
Air conditioner ON signal*
1
Revision: 2008 October
2009 Murano
AIR CONDITIONING CUT CONTROL
EC-45
< FUNCTION DIAGNOSIS >
[VQ35DE]
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Component Parts Location
INFOID:0000000003573785
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
EC-46
< FUNCTION DIAGNOSIS >
[VQ35DE]
AIR CONDITIONING CUT CONTROL
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
AIR CONDITIONING CUT CONTROL
EC-47
< FUNCTION DIAGNOSIS >
[VQ35DE]
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EC
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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
EC-48
< FUNCTION DIAGNOSIS >
[VQ35DE]
AIR CONDITIONING CUT CONTROL
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
AIR CONDITIONING CUT CONTROL
EC-49
< FUNCTION DIAGNOSIS >
[VQ35DE]
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EC
N
P
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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-50
< FUNCTION DIAGNOSIS >
[VQ35DE]
AIR CONDITIONING CUT CONTROL
Component Description
INFOID:0000000003387900
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
Accelerator pedal position sensor
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)
Engine coolant temperature sensor
Power steering pressure sensor
Refrigerant pressure sensor
Revision: 2008 October
2009 Murano
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-51
< FUNCTION DIAGNOSIS >
[VQ35DE]
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AUTOMATIC SPEED CONTROL DEVICE (ASCD)
System Diagram
INFOID:0000000003387901
System Description
INFOID:0000000003387902
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM via the CAN communication line
BASIC ASCD SYSTEM
Refer to Owner's Manual for ASCD operating instructions.
Automatic Speed Control Device (ASCD) allows a driver to keep vehicle at predetermined constant speed
without depressing accelerator pedal. Driver can set vehicle speed in advance between approximately 40 km/
h (25 MPH) and 144 km/h (89 MPH).
ECM controls throttle angle of electric throttle control actuator to regulate engine speed.
Operation status of ASCD is indicated by CRUISE on combination meter. If any malfunction occurs in the
ASCD system, it automatically deactivates control.
NOTE:
Always drive vehicle in a safe manner according to traffic conditions and obey all traffic laws.
SET OPERATION
Press MAIN switch. (The CRUISE on combination meter illuminates.)
When vehicle speed reaches a desired speed between approximately 40 km/h (25 MPH) and 144 km/h (89
MPH), press SET/COAST switch.
ACCELERATE OPERATION
If the RESUME/ACCELERATE switch is pressed during cruise control driving, increase the vehicle speed until
the switch is released or vehicle speed reaches maximum speed controlled by the system.
And then ASCD will maintain the new set speed.
CANCEL OPERATION
When any of following conditions exist, cruise operation will be canceled.
JMBIA1826GB
Sensor
Input signal to ECM
ECM function
Actuator
ASCD brake switch
Brake pedal operation
ASCD vehicle speed control
Electric throttle control
actuator
Stop lamp switch
Brake pedal operation
ASCD steering switch
ASCD steering switch operation
TCM
Gear position
Powertrain revolution*
Combination meter
Vehicle speed*
Revision: 2008 October
2009 Murano
EC-52
< FUNCTION DIAGNOSIS >
[VQ35DE]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
• CANCEL switch is pressed
• More than 2 switches on ASCD steering switch are pressed at the same time (Set speed will be cleared)
• Brake pedal is depressed
• Selector lever position changed to N, P or R
• Vehicle speed decreased to 13 km/h (8 MPH) lower than the set speed
• TCS system is operated
• CVT control system has a malfunction. Refer to
.
• Engine coolant temperature is slightly higher than the normal operating temperature
When the ECM detects any of the following conditions, the ECM will cancel the cruise operation and inform
the driver by blinking indicator lamp.
• Malfunction for some self-diagnoses regarding ASCD control: CRUISE will blink quickly.
If MAIN switch is turned to OFF while ASCD is activated, all of ASCD operations will be canceled and vehicle
speed memory will be erased.
COAST OPERATION
When the SET/COAST switch is pressed during cruise control driving, decrease vehicle set speed until the
switch is released. And then ASCD will maintain the new set speed.
RESUME OPERATION
When the RESUME/ACCELERATE switch is pressed after canceling operation other than pressing the MAIN
switch is performed, vehicle speed will return to last set speed. To resume vehicle set speed, vehicle condition
must meet following conditions.
• Brake pedal is released
• Selector lever position is other than P and N
• Vehicle speed is greater than 40 km/h (25 MPH) and less than 144 km/h (89 MPH)
Revision: 2008 October
2009 Murano
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-53
< FUNCTION DIAGNOSIS >
[VQ35DE]
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Component Parts Location
INFOID:0000000003573786
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
EC-54
< FUNCTION DIAGNOSIS >
[VQ35DE]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
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
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-55
< FUNCTION DIAGNOSIS >
[VQ35DE]
C
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EC
N
P
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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
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