Nissan Murano Z51 (2008 year). Manual — part 142
EC-88
< FUNCTION DIAGNOSIS >
[VQ35DE]
INTAKE VALVE TIMING CONTROL
Component Parts Location
INFOID:0000000003573792
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
INTAKE VALVE TIMING CONTROL
EC-89
< 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-90
< FUNCTION DIAGNOSIS >
[VQ35DE]
INTAKE VALVE TIMING 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
INTAKE VALVE TIMING CONTROL
EC-91
< 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-92
< FUNCTION DIAGNOSIS >
[VQ35DE]
INTAKE VALVE TIMING 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
INTAKE VALVE TIMING CONTROL
EC-93
< FUNCTION DIAGNOSIS >
[VQ35DE]
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Component Description
INFOID:0000000003387921
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)
Crankshaft position sensor (POS)
Engine coolant temperature sensor
Engine oil temperature sensor
Intake valve timing control solenoid valve
Revision: 2008 October
2009 Murano
EC-94
< FUNCTION DIAGNOSIS >
[VQ35DE]
VARIABLE INDUCTION AIR SYSTEM
VARIABLE INDUCTION AIR SYSTEM
System Diagram
INFOID:0000000003387922
System Description
INFOID:0000000003387923
INPUT/OUTPUT SIGNAL CHART
*: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
In the medium speed range, the ECM sends the ON signal to the VIAS control solenoid valve. This signal
introduces the intake manifold vacuum into the power valve actuator and therefore closes the power valve.
JMBIA1831GB
Sensor
Input signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Engine speed*
VIAS control
VIAS control solenoid valve 1
VIAS control solenoid valve 2
Mass air flow sensor
Amount of intake air
Engine coolant temperature sensor
Engine coolant temperature
Throttle position sensor
Throttle position
Accelerator pedal position sensor
Accelerator pedal position
Battery
Battery voltage*
JMBIA0181GB
Revision: 2008 October
2009 Murano
VARIABLE INDUCTION AIR SYSTEM
EC-95
< FUNCTION DIAGNOSIS >
[VQ35DE]
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Under this condition, the pressure waves of the exhaust stroke do not disturb the pressure waves of the intake
stroke of each opposite bank. Therefore, charging efficiency is increased together with the effect of the long
intake passage.
However, in the high speed range, the ECM sends the OFF signal to the VIAS control solenoid valve and the
power valve is opened. Under this condition, the pressure waves of intake stroke are resonant with those of
each opposite bank exhaust stroke. Therefore, charging efficiency is also increased.
In addition, both valves 1 and 2 are opened or closed in other ranges mentioned above. Thus maximum
charging efficiency is obtained for the various driving conditions.
VACUUM HOSE DRAWING
1.
Power valve actuator 1
2.
VIAS control solenoid valve 1
3.
VIAS control solenoid valve 2
4.
Power valve actuator 2
5.
Intake manifold collector
JMBIA0172ZZ
Revision: 2008 October
2009 Murano
EC-96
< FUNCTION DIAGNOSIS >
[VQ35DE]
VARIABLE INDUCTION AIR SYSTEM
Component Parts Location
INFOID:0000000003573795
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
VARIABLE INDUCTION AIR SYSTEM
EC-97
< 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-98
< FUNCTION DIAGNOSIS >
[VQ35DE]
VARIABLE INDUCTION AIR 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
VARIABLE INDUCTION AIR SYSTEM
EC-99
< 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-100
< FUNCTION DIAGNOSIS >
[VQ35DE]
VARIABLE INDUCTION AIR 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
VARIABLE INDUCTION AIR SYSTEM
EC-101
< FUNCTION DIAGNOSIS >
[VQ35DE]
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Component Description
INFOID:0000000003387925
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
Mass air flow sensor
Power valve 1 and 2
Throttle position sensor
VIAS control solenoid valve 1
VIAS control solenoid valve 2
Revision: 2008 October
2009 Murano
EC-102
< FUNCTION DIAGNOSIS >
[VQ35DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Diagnosis Description
INFOID:0000000003387926
INTRODUCTION
The ECM has an on board diagnostic system, which detects malfunctions related to engine sensors or actua-
tors. The ECM also records various emission-related diagnostic information including:
The above information can be checked using procedures listed in the table below.
×
: Applicable
—: Not applicable
*: When DTC and 1st trip DTC simultaneously appear on the display, they cannot be clearly distinguished from each other.
The malfunction indicator lamp (MIL) on the instrument panel illuminates when the same malfunction is
detected in two consecutive trips (Two trip detection logic), or when the ECM enters fail-safe mode. (Refer to
TWO TRIP DETECTION LOGIC
When a malfunction is detected for the 1st time, 1st trip DTC and 1st trip Freeze Frame data are stored in the
ECM memory. The MIL will not illuminate at this stage. <1st trip>
If the same malfunction is detected again during the next drive, the DTC and Freeze Frame data are stored in
the ECM memory, and the MIL illuminates. The MIL illuminates at the same time when the DTC is stored.
<2nd trip> The “trip” in the “Two Trip Detection Logic” means a driving mode in which self-diagnosis is per-
formed during vehicle operation. Specific on board diagnostic items will cause the ECM to illuminate or blink
the MIL, and store DTC and Freeze Frame data, even in the 1st trip, as shown below.
×
: Applicable
—: Not applicable
DTC AND FREEZE FRAME DATA
DTC and 1st Trip DTC
Emission-related diagnostic information
Diagnostic service
Diagnostic Trouble Code (DTC)
Service $03 of SAE J1979
Freeze Frame data
Service $02 of SAE J1979
System Readiness Test (SRT) code
Service $01 of SAE J1979
1st Trip Diagnostic Trouble Code (1st Trip DTC)
Service $07 of SAE J1979
1st Trip Freeze Frame data
—
Test values and Test limits
Service $06 of SAE J1979
Calibration ID
Service $09 of SAE J1979
DTC
1st trip DTC
Freeze
Frame data
1st trip Freeze
Frame data
SRT code
SRT status
Test value
CONSULT-III
×
×
×
×
×
×
—
GST
×
×
×
—
×
×
×
ECM
×
×
*
—
—
—
×
—
Items
MIL
DTC
1st trip DTC
1st trip
2nd trip
1st trip
displaying
2nd trip
displaying
1st trip
displaying
2nd trip
display-
ing
Blinking
illuminate
Blinking
illuminate
Misfire (Possible three way catalyst
damage) — DTC: P0300 - P0306 is
being detected
×
—
—
—
—
—
×
—
Misfire (Possible three way catalyst
damage) — DTC: P0300 - P0306 is
being detected
—
—
×
—
—
×
—
—
One trip detection diagnoses (Re-
fer to
—
×
—
—
×
—
—
—
Except above
—
—
—
×
—
×
×
—
Revision: 2008 October
2009 Murano
ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-103
< FUNCTION DIAGNOSIS >
[VQ35DE]
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The 1st trip DTC (whose number is the same as the DTC number) is displayed for the latest self-diagnostic
result obtained. If the ECM memory was cleared previously, and the 1st trip DTC did not recur, the 1st trip DTC
will not be displayed.
If a malfunction is detected during the 1st trip, the 1st trip DTC is saved in the ECM memory. The MIL will not
illuminate (two trip detection logic). If the same malfunction is not detected in the 2nd trip (meeting the required
driving pattern), the 1st trip DTC is cleared from the ECM memory. If the same malfunction is detected in the
2nd trip, both the 1st trip DTC and DTC are stored in the ECM memory and the MIL illuminates. In other
words, the DTC is stored in the ECM memory and the MIL illuminates when the same malfunction occurs in
two consecutive trips. If a 1st trip DTC is saved and a non-diagnostic operation is performed between the 1st
and 2nd trips, only the 1st trip DTC will continue to be stored. For malfunctions that blink or illuminate the MIL
during the 1st trip, the DTC and 1st trip DTC are stored in the ECM memory.
Procedures for clearing the DTC and the 1st trip DTC from the ECM memory are described in “How to Erase
DTC and 1st Trip DTC”.
For malfunctions in which 1st trip DTCs are displayed, refer to
required by legal regulations to continuously monitor the system/component. In addition, the items monitored
non-continuously are also displayed on CONSULT-III.
1st trip DTC is specified in Service $07 of SAE J1979. 1st trip DTC detection occurs without illuminating the
MIL and therefore does not warn the driver of a malfunction. However, 1st trip DTC detection will not prevent
the vehicle from being tested, for example during Inspection/Maintenance (I/M) tests.
When a 1st trip DTC is detected, check, print out or write down and erase (1st trip) DTC and Freeze Frame
data as specified in Work Flow procedure Step 2, refer to
. Then perform DTC Confirmation
Procedure or Component Function Check to try to duplicate the malfunction. If the malfunction is duplicated,
the item requires repair.
Freeze Frame Data and 1st Trip Freeze Frame Data
The ECM records the driving conditions such as fuel system status, calculated load value, engine coolant tem-
perature, short term fuel trim, long term fuel trim, engine speed, vehicle speed, absolute throttle position, base
fuel schedule and intake air temperature at the moment a malfunction is detected.
Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data.
The data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-III or
GST. The 1st trip freeze frame data can only be displayed on the CONSULT-III screen, not on the GST.
Only one set of freeze frame data (either 1st trip freeze frame data or freeze frame data) can be stored in the
ECM. 1st trip freeze frame data is stored in the ECM memory along with the 1st trip DTC. There is no priority
for 1st trip freeze frame data and it is updated each time a different 1st trip DTC is detected. However, once
freeze frame data (2nd trip detection/MIL on) is stored in the ECM memory, 1st trip freeze frame data is no
longer stored. Remember, only one set of freeze frame data can be stored in the ECM. The ECM has the fol-
lowing priorities to update the data.
For example, the EGR malfunction (Priority: 2) was detected and the freeze frame data was saved in the 2nd
trip. After that when the misfire (Priority: 1) is detected in another trip, the freeze frame data will be updated
from the EGR malfunction to the misfire. The 1st trip freeze frame data is updated each time a different mal-
function is detected. There is no priority for 1st trip freeze frame data. However, once freeze frame data is
stored in the ECM memory, 1st trip freeze data is no longer stored (because only one freeze frame data or 1st
trip freeze frame data can be stored in the ECM). If freeze frame data is stored in the ECM memory and freeze
frame data with the same priority occurs later, the first (original) freeze frame data remains unchanged in the
ECM memory.
Both 1st trip freeze frame data and freeze frame data (along with the DTCs) are cleared when the ECM mem-
ory is erased. Procedures for clearing the ECM memory are described in “How to Erase DTC and 1st Trip
DTC”.
How to Read DTC and 1st Trip DTC
With CONSULT-III
CONSULT-III displays the DTC in “SELF DIAGNOSTIC RESULT” mode. Examples: P0340, P0850, P1148,
etc.
These DTCs are prescribed by SAE J2012.
Priority
Items
1
Freeze frame data
Misfire — DTC: P0300 - P0306
Fuel Injection System Function — DTC: P0171, P0172, P0174, P0175
2
Except the above items (Includes CVT related items)
3
1st trip freeze frame data
Revision: 2008 October
2009 Murano
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