Nissan Murano Z50 (2006 year). Manual — part 82
TROUBLE DIAGNOSIS
EC-91
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Revision: 2006 August
2006 Murano
SYSTEM — ENGINE MECHANICAL & OTHER
SYMPTOM
Reference
page
HARD/
NO ST
AR
T/
REST
AR
T (
E
X
C
P
. HA)
ENGI
NE ST
ALL
HESIT
A
TION/SURG
ING/FL
A
T S
P
OT
SP
ARK K
N
O
C
K/DET
O
NA
TI
ON
L
A
CK
OF P
O
W
E
R/POOR ACCEL
E
R
A
TION
HI
GH ID
L
E
/L
OW
I
D
L
E
ROUGH IDL
E
/HUNTI
N
G
ID
L
ING VI
B
R
A
T
ION
SL
OW
/N
O RETURN
T
O
I
D
L
E
OVERHEA
T
S/W
A
T
E
R TEMPERA
T
URE
HI
GH
EXCESSIVE FUEL CO
NSUM
P
T
ION
EXCESSIVE O
IL CONSUM
P
T
IO
N
BA
TTER
Y
DEA
D
(UNDER CHARGE)
Warranty symptom code
AA
AB
AC
AD
AE
AF
AG
AH
AJ
AK
AL
AM
HA
Fuel
Fuel tank
5
5
Fuel piping
5
5
5
5
5
5
Vapor lock
—
Valve deposit
5
5
5
5
5
5
5
—
Poor fuel (Heavy weight gaso-
line, Low octane)
—
Air
Air duct
5
5
5
5
5
5
Air cleaner
Air leakage from air duct
(Mass air flow sensor — electric
throttle control actuator)
5
5
5
5
Electric throttle control actuator
Air leakage from intake manifold/
Collector/Gasket
Cranking
Battery
1
1
1
1
1
1
1
1
Generator circuit
Starter circuit
3
Signal plate
6
PNP switch
4
Engine
Cylinder head
5
5
5
5
5
5
5
5
Cylinder head gasket
4
3
Cylinder block
6
6
6
6
6
6
6
6
4
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Valve
mecha-
nism
Timing chain
5
5
5
5
5
5
5
5
Camshaft
Intake valve timing control
Intake valve
3
Exhaust valve
EC-92
TROUBLE DIAGNOSIS
Revision: 2006 August
2006 Murano
1 - 6: The numbers refer to the order of inspection.
Exhaust
Exhaust manifold/Tube/Muffler/
Gasket
5
5
5
5
5
5
5
5
,
Three way catalyst
Lubrica-
tion
Oil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery/Oil cooler
5
5
5
5
5
5
5
5
,
,
Oil level (Low)/Filthy oil
Cooling
Radiator/Hose/Radiator filler cap
5
5
5
5
5
5
5
4
5
,
Thermostat
5
Water pump
Water gallery
Cooling fan
5
Coolant level (Low)/Contami-
nated coolant
5
NVIS (NISSAN Vehicle Immobilizer System —
NATS)
1
1
SYMPTOM
Reference
page
HARD/
NO ST
AR
T
/REST
AR
T (
EXCP
. H
A
)
ENGI
NE ST
ALL
HESI
T
A
TION/
S
URGING/
FL
A
T
SPOT
SP
ARK KNOCK/DET
O
NA
TI
ON
L
A
CK OF
POW
E
R/POO
R
ACCEL
E
RA
TION
HI
GH I
D
L
E
/L
OW
I
D
L
E
ROUG
H IDL
E
/HUNTING
ID
L
ING VI
BRA
T
ION
SL
OW
/N
O RETURN
T
O
I
D
L
E
OVERHEA
T
S/
W
A
TER TEMPERA
T
URE HI
GH
EXCESSIVE F
U
E
L
CONSUM
P
T
IO
N
EXCESSIVE OIL
CONSUM
P
T
ION
BA
TTER
Y
DEAD (
UNDER CHARGE)
Warranty symptom code
AA
AB
AC
AD
AE
AF
AG
AH
AJ
AK
AL
AM
HA
TROUBLE DIAGNOSIS
EC-93
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Revision: 2006 August
2006 Murano
Engine Control Component Parts Location
NBS002ZI
PBIB3194E
EC-94
TROUBLE DIAGNOSIS
Revision: 2006 August
2006 Murano
PBIB3195E
TROUBLE DIAGNOSIS
EC-95
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EC
Revision: 2006 August
2006 Murano
PBIB3196E
EC-96
TROUBLE DIAGNOSIS
Revision: 2006 August
2006 Murano
PBIB2620E
TROUBLE DIAGNOSIS
EC-97
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EC
Revision: 2006 August
2006 Murano
PBIB1686E
PBIB2290E
EC-98
TROUBLE DIAGNOSIS
Revision: 2006 August
2006 Murano
PBIB3197E
TROUBLE DIAGNOSIS
EC-99
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Revision: 2006 August
2006 Murano
Vacuum Hose Drawing
NBS002ZJ
PBIB3192E
EC-100
TROUBLE DIAGNOSIS
Revision: 2006 August
2006 Murano
Circuit Diagram
NBS002ZK
TBWB0792E
TROUBLE DIAGNOSIS
EC-101
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Revision: 2006 August
2006 Murano
TBWB0793E
EC-102
TROUBLE DIAGNOSIS
Revision: 2006 August
2006 Murano
ECM Harness Connector Terminal Layout
NBS002ZL
ECM Terminals and Reference Value
NBS002ZM
PREPARATION
1.
ECM is located behind the glove box. For this inspection,
remove glove box.
2.
Remove ECM harness connector.
3.
When disconnecting ECM harness connector, loosen it with
levers as far as they will go as shown at right.
4.
Connect a break-out box (SST) and Y-cable adapter (SST)
between the ECM and ECM harness connector.
●
Use extreme care not to touch 2 pins at one time.
●
Data is for comparison and may not be exact.
ECM INSPECTION TABLE
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECMs transistor. Use a ground other than ECM terminals, such as the ground.
MBIB0045E
PBIB1299E
PBIB1512E
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
1
B
ECM ground
[Engine is running]
●
Idle speed
Body ground
2
G/B
A/F sensor 1 heater
(bank 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 5V
PBIB1584E
TROUBLE DIAGNOSIS
EC-103
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Revision: 2006 August
2006 Murano
3
R
Throttle control motor relay
power supply
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
4
G
Throttle control motor (Close)
[Ignition switch: ON]
●
Engine stopped
●
Shift lever: D
●
Accelerator pedal: Fully released
0 - 14V
5
R
Throttle control motor (Open)
[Ignition switch: ON]
●
Engine stopped
●
Shift lever: D
●
Accelerator pedal: Fully depressed
0 - 14V
6
L/R
Heated oxygen sensor 2
heater (bank 2)
[Engine is running]
●
Engine speed: 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.
0 - 1.0V
[Ignition switch: ON]
●
Engine stopped
[Engine is running]
●
Engine speed: Above 3,600 rpm
BATTERY VOLTAGE
(11 - 14V)
8
BR/W
Electronic controlled engine
mount-1
[Engine is running]
●
Engine speed: Above 950 rpm
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
For 2 seconds after engine speed is 950
rpm or less.
0 - 1.0V
[Engine is running]
●
2 seconds after engine speed is 950 rpm or
less.
2.0 - 3.0V
9
W/R
Electronic controlled engine
mount-2
[Engine is running]
●
Engine speed: Below 950 rpm
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
For 2 seconds after engine speed is 950
rpm or more.
0 - 1.0V
[Engine is running]
●
2 seconds after engine speed is 950 rpm or
more.
2.0 - 3.0V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB1104E
PBIB1105E
EC-104
TROUBLE DIAGNOSIS
Revision: 2006 August
2006 Murano
10
Y
Intake valve timing control
solenoid valve (bank 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Warm-up condition
●
Engine speed: 2,000 rpm
7 - 12V
11
P
Intake valve timing control
solenoid valve (bank 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Warm-up condition
●
Engine speed: 2,000 rpm
7 - 12V
12
W
Power steering pressure sen-
sor
[Engine is running]
●
Steering wheel: Being turned
0.5 - 4.5V
[Engine is running]
●
Steering wheel: Not being turned
0.4 - 0.8V
13
W
Crankshaft position sensor
(POS)
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle.
Approximately 1.6V
[Engine is running]
●
Engine speed: 2,000 rpm
Approximately 1.4V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB1790E
PBIB1790E
PBIB1041E
PBIB1042E
TROUBLE DIAGNOSIS
EC-105
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Revision: 2006 August
2006 Murano
14
W
Camshaft position sensor
(PHASE) (bank 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle.
1.0 - 4.0V
[Engine is running]
●
Engine speed: 2,000 rpm
1.0 - 4.0V
15
W
Knock sensor
[Engine is running]
●
Idle speed
Approximately 2.5V
16
LG/B
A/F sensor 1 (Bank 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 3.1V
35
O/L
Approximately 2.6V
56
BR/Y
Approximately 2.3V
75
Y/R
Approximately 2.3V
21
22
23
L/W
R/Y
R/B
Fuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle.
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Warm-up condition
●
Engine speed: 2,000 rpm
BATTERY VOLTAGE
(11 - 14V)
24
V
A/F sensor 1 heater
(Bank 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 5V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB1039E
PBIB1040E
SEC984C
SEC985C
PBIB1584E
EC-106
TROUBLE DIAGNOSIS
Revision: 2006 August
2006 Murano
25
P/L
Heated oxygen sensor 2
heater (bank 1)
[Engine is running]
●
Engine speed: 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.
0 - 1.0V
[Ignition switch: ON]
●
Engine stopped
[Engine is running]
●
Engine speed: Above 3,600 rpm
BATTERY VOLTAGE
(11 - 14V)
29
G/Y
VIAS control solenoid valve
[Engine is running]
●
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Engine speed: Between 1,800 and 3,600
rpm
0 - 1.0V
32
BR
EVAP control system pres-
sure sensor
[Ignition switch: ON]
Approximately 1.8 - 4.8V
33
Y
Camshaft position sensor
(PHASE) (bank 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle.
1.0 - 4.0V
[Engine is running]
●
Engine speed: 2,000 rpm
1.0 - 4.0V
34
Y/G
Intake air temperature sensor
[Engine is running]
Approximately 0 - 4.8V
Output voltage varies with intake
air temperature.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB1039E
PBIB1040E
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