engine NISSAN X-TRAIL 2003 Electronic Repair Manual

DI-12
COMBINATION METERS (LHD MODELS)
Power Supply and Ground Circuit Check
EKS002ZE
1.POWER SUPPLY CIRCUIT CHECK
OK or NG?
OK >> GO TO 2.
NG >>
l10A fuse [No. 11, located in fuse block (J/B)].
l10A fuse [No. 28, located in fuse block (J/B)].
lHarness for open or short between fuse and combination meter.
2.GROUND CIRCUIT CHECK
OK or NG?
OK >> Inspection end.
NG >> Harness for open ground circuit.
Inspection/Engine Speed SignalEKS002ZF
1.CHECK ECM OUTPUT
1. Start engine.
2. Check voltage between combination meter harness connector
M46 terminals 54 (L/OR) and ground at idle and 2,000 rpm.
OK or NG?
OK >> Engine speed signal is OK.
NG >> Harness for open or short between ECM and combina-
tion meter.
Terminals Ignition switch position
(+)
(-)OFF ACC ON
ConnectorTe r m i n a l
(wire
color)
M46 45 (L) GroundBattery
voltageBattery
voltageBattery
voltage
M46 46 (W/L) Ground 0V 0VBattery
voltage
SKIA0982E
Te r m i n a l s
Continuity (+)
(-)
Connector Terminal
M46 47 Ground Yes
SKIA0983E
Higher rpm = Higher voltage
Lower rpm = Lower voltage
Voltage should change with rpm.
SKIA0984E

COMBINATION METERS (LHD MODELS)
DI-13
C
D
E
F
G
H
I
J
L
MA
B
DI
Inspection/Water Temperature Gauge /Gasoline Engine ModelsEKS002ZT
1.CHECK ECM OUTPUT
1. Disconnect combination meter.
2. Check voltage between combination meter harness connector
M46 terminal 55 (PU/W) and ground.
OK or NG?
OK >> GO TO 3.
NG >> GO TO 2.
2.CHECK HARNESS FOR OPEN OR SHORT
1. Disconnect ECM connector.
2. Check continuity between combination meter harness connector
M46 terminal 55 (PU/W) and ECM harness connector Terminal
32 (PU/W).
3. Check continuity between combination meter harness connector
M46 terminal 55 (PU/W) and ground.
OK or NG?
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK WATER TEMPERATURE OUTPUT SIGNAL
1. Connect combination meter connector and ECM connector.
2. Start engine.
3. Check output signal between combination meter harness con-
nector M46 terminal 55 (PU/W) and ground. (Use “SIMPLE
OSCILLOSCOPE” in “SUB MODE” with CONSULT-II.)
OK or NG?
OK >> Replace combination meter.
NG >> Check ECM.
Inspection/Water Temperature Gauge (Diesel Engine Models)EKS002ZG
1.CHECK THERMAL TRANSMITTER
Refer toDI-20, "
THERMAL TRANSMITTER CHECK".
OK or NG
OK >> GO TO 2.
NG >> Replace thermal transmitter.Battery voltage should exist.
SKIA0985E
Continuity should exist.
Continuity should not exist.
SKIA0986E
55 (PU/W) – ground
SKIA0987E

COMBINATION METERS (LHD MODELS)
DI-15
C
D
E
F
G
H
I
J
L
MA
B
DI
4.CHECK VEHICLE SPEED INPUT SIGNAL
1. Connect 4WD/ABS control unit (without EPS)or 4WD control
unit (with EPS) connector.
2. Lift up drive wheels.
3. Start engine.
4. Check voltage signal between combination meter harness con-
nector M46 terminal 52 (R/B) and ground.
OK or NG?
OK >> Replace combination meter.
NG >> Check ABS system.
Inspection/Fuel Level Sensor UnitEKS002ZI
FUEL LEVEL SENSOR UNIT
The following symptoms do not indicate a malfunction.
lDepending on vehicle posture or driving circumstance, the fuel level in the tank varies, and the pointer
may fluctuate.
lIf the vehicle is fueled with the ignition switch ON, the pointer will move slowly.
LOW-FUEL WARNING LAMP
Depending on vehicle posture or driving circumstance, the fuel level in the tank varies, and the warning lamp
ON timing may be changed.
1.DIAGNOSIS MODE INSPECTION
Preform the combination meter diagnosis mode. Refer toDI-10, "
Meter/Gauge Operation and Odo/Trip Meter
Segment Check in Diagnosis Mode".
OK or NG
OK >> GO TO 2.
NG >> Replace combination meter.
2.HARNESS CONNECTOR INSPECTION
1. Turn the ignition switch OFF.
2. Check combination meter, fuel level sensor unit and terminals (meter-side, module-side, and harness-
side) for poor connection and bend.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace terminals or connectors.52 (R/B) – ground
SKIA0990E

DI-16
COMBINATION METERS (LHD MODELS)
3.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect combination meter connector, fuel level sensor unit
connector and sub fuel level sensor unit connector.
2. Check the following.
–Continuity between combination meter harness connector M46
terminal 51 (G) and sub fuel level sensor unit harness connector
B125 terminal 1 (G).
–Continuity between sub fuel level sensor unit harness connector
B125 terminal 3 (Y) and fuel level sensor unit harness connector
B31(Gasoline engine models) or B32 (Diesel engine models)
terminal 4 (Y).
OK or NG?
OK >> GO TO 4.
NG >> Repair or replace harnesses or connectors.Continuity should exist.
SKIA0991E
SKIA1005E

COMBINATION METERS (LHD MODELS)
DI-17
C
D
E
F
G
H
I
J
L
MA
B
DI
4.CHECK HARNESS FOR SHORT CIRCUIT
1. Checking the following.
–Continuity between combination meter harness connector M46
terminal 51(G) and ground.
–Continuity between sub fuel level sensor harness connector
B125 terminal 3 (Y) and ground.
–Continuity between fuel level sensor unit harness connector
B31(Gasoline engine models) or B32 (Diesel engine models)
terminal 1(B/W) and ground.
OK or NG?
OK >> GO TO 5.
NG >> Repair or replace harnesses or connectors.
5.FUEL LEVEL SENSOR UNIT INSPECTION
Check the components. Refer toDI-19, "
Electrical Components Inspection".
OK or NG
OK >> GO TO 6.
NG >> Replace fuel level sensor unit or sub fuel level sensor unit.
6.CHECK INSTALLATION CONDITION
Check fuel level sensor unit installation, and check whether the float arm interferes or binds with any compo-
nents inside the arm.
OK or NG
OK >> Replace combination meter.
NG >> Install fuel level sensor unit or sub fuel sensor unit properly.
The Fuel Gauge Pointer Fluctuates·Indicator Wrong Value·or Varies.EKS002ZJ
1.CHECK THE FUEL GAUGE POINTER FOR FLUCTUATION
Does the indication value fluctuate during driving or before/after stop?
Does the indication value vary?
YES >> The pointer fluctuation may be caused by fuel level change in the fuel tank.
NO >> Ask the customer about the situation when the symptom occurs in detail, and Preform the trouble
diagnosis. Continuity should not exist.
SKIA0992E
SKIA1007E

DI-18
COMBINATION METERS (LHD MODELS)
The Fuel Gauge Does Not Move to F-position.
EKS002ZK
1.QUESTIONNAIRE 1
Does it take a long time for the pointer to move to F-position?
YES?
YES >> GO TO 2.
NO >> GO TO 3.
2.QUESTIONNAIRE 2
Was the vehicle fueled with the ignition switch ON?
YES?
YES >> Be sure to fuel the vehicle with the ignition switch OFF. Otherwise it will take a long time to move
to F-position because of the characteristic of the fuel gauge.
NO >> GO TO 3.
3.QUESTIONNAIRE 3
Is the floor or the vehicle inclined?
YES?
YES >> It may not be filled fully.
NO >> GO TO 4.
4.QUESTIONNAIRE 4
During driving, does the fuel gauge pointer move gradually toward E-position?
YES?
YES >> Check the components. Refer toDI-19, "Electrical Components Inspection".
NO >> The float arm may interfere or bind with any of the components in the fuel tank.
The Fuel Gauge Does Not Work.EKS002ZL
1.HARNESS CONNECTOR INSPECTION
1. Turn the ignition switch OFF.
2. Check combination meter, fuel level sensor unit, sub fuel level sensor unit and terminals (meter-side,
module-side, and harness-side) for poor connection and bend.
OK or NG
OK >> GO TO 2.
NG >> Repair connector.
2.CHECK INSTALLATION CONDITION
Check fuel level sensor unit or sub fuel level sensor unit installation (refer toFL-4, "
FUEL LEVEL SENSOR
UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY"for QR engine models orFL-17, "FUEL LEVEL SEN-
SOR UNIT"for YD engine models, and check whether the float arm interferes or binds with any components
inside the arm.
OK or NG
OK >> Fuel level sensor unit is OK.
NG >> Check fuel level sensor unit or sub fuel level sensor unit. Refer toDI-19, "
Electrical Components
Inspection".

COMBINATION METERS (LHD MODELS)
DI-19
C
D
E
F
G
H
I
J
L
MA
B
DI
Low Fuel Warning Lamp Illuminate or Not IlluminateEKS002ZM
1.DIAGNOSIS MODE INSPECTION
Preform combination meter diagnosis mode. Refer toDI-10, "
Meter/Gauge Operation and Odo/Trip Meter
Segment Check in Diagnosis Mode".
OK or NG
OK >> Check fuel level sensor unit or sub fuel level sensor unit. Refer toDI-19, "Electrical Components
Inspection".
NG >> Replace combination meter.
Electrical Components InspectionEKS002ZN
FUEL LEVEL SENSOR UNIT CHECK / GASOLINE ENGINE MODELS
For removal, refer toFL-4, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY"for
Gasoline engine models.
Fuel level sensor unit
Check the resistance between terminals 1 and 4.
*1 and *2: When float rod is in contact with stopper.
Sub fuel level sensor unit
Check the resistance between terminals 3 and 1.
*1 and *2: When float rod is in contact with stopper.
FUEL LEVEL SENSOR UNIT CHECK / DIESEL ENGINE MODELS EXCEPT FOR NORTHERN
EUROPE
For removal, refer toFL-17, "FUEL LEVEL SENSOR UNIT"for Diesel engine models.
Fuel level sensor unit
Check the resistance between terminals 1 and 4.
*1 and *2: When float rod is in contact with stopper.Ohmmeter
Float position mm (in)Resistance
valueW
(+) (-)
41*1 Full 24 (2.36) Approx. 4 - 6
*2 Empty 167 (6.57) Approx.79 - 84
SKIA0904E
Ohmmeter
Float position mm (in)Resistance
valueW
(+) (-)
13*1 Full 35 (1.50) Approx. 0.8 -1
*2 Empty 186 (6.38) Approx.79 - 84
SKIA1032E
Ohmmeter
Float position mm (in)Resistance
valueW
(+) (-)
41*1 Full 24 (2.38) Approx. 4 - 6
*2 Empty 170 (6.46) Approx. 79 - 84
SKIA0908E

DI-20
COMBINATION METERS (LHD MODELS)
Sub fuel level sensor unit
Check the resistance between terminals 1 and 3.
*1 and *2: When float rod is in contact with stopper.
FUEL LEVEL SENSOR UNIT CHECK / DIESEL ENGINE MODELS FOR NORTHERN EUROPE
For removal, refer toFL-17, "FUEL LEVEL SENSOR UNIT"for Diesel engine models.
Fuel level sensor unit
Check the resistance between terminals 1 and 3.
*1 and *2: When float rod is in contact with stopper.
Sub fuel level sensor unit
Check the resistance between terminals 1 and 3.
*1 and *2: When float rod is in contact with stopper.
THERMAL TRANSMITTER CHECK
Check the resistance between the terminals of thermal transmitter
and body ground.
For removal, refer toFL-17, "
FUEL LEVEL SENSOR UNIT"for Die-
sel engine models.
Ohmmeter
Float position mm (in)Resistance
valueW
(+) (-)
13*1 Full 35 (1.50) Approx. 0.8 - 1.0
*2 Empty 186 (6.38) Approx. 38 - 42
SKIA1031E
Ohmmeter
Float position mm (in)Resistance
valueW
(+) (-)
14*1 Full 40 (1.57) Approx. 4 - 6
*2 Empty 171 (6.73) Approx. 80 - 83
SKIA0909E
Ohmmeter
Float position mm (in)Resistance
valueW
(+) (-)
13*1 Full 51 (2.01) Approx. 0.8 - 1.0
*2 Empty 162 (6.38) Approx. 38 - 42
SKIA0910E
Water temperature Resistance
60°C(140°F) Approx. 170 - 210W
100°C (212°F) Approx. 47 - 53W
MEL424F

DI-22
COMBINATION METERS (RHD MODELS)
COMBINATION METERS (RHD MODELS)
PFP:24810
System DescriptionEKS0030H
UNIFIED CONTROL METER
lSpeedometer, odo/trip meter, tachometer, fuel gauge and water temperature gauge are controlled totally
by control unit built-in combination meter.
lDigital meter is adopted for odo/trip meter.*
*The record of the odo meter is kept even if the battery cable is disconnected. The record of the trip meter
is erased when the battery cable is disconnected.
lOdo/trip meter segment can be checked in diagnosis mode.
lMeter/gauge can be checked in diagnosis mode.
HOW TO CHANGE THE DISPLAY FOR ODO/TRIP METER
NOTE:
Turn ignition switch to the “ON” position to operate odo/trip meter.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
lthrough 10A fuse [No. 28, located in the fuse block (J/B)]
lto combination meter terminal 58.
With the ignition switch in the ON or START position, power is supplied
lthrough 10A fuse [No. 11, located in the fuse block (J/B)]
lto combination meter terminal 59.
Ground is supplied
lthrough body grounds M27 and M70
lto combination meter terminal 60.
WATER TEMPERATURE GAUGE
Gasoline engine models
The water temperature gauge indicates the engine coolant temperature. The reading on the gauge is received
engine coolant temperature signal from ECM. ECM is detected by water temperature sensor.
The water temperature gauge is received by a signal
lfrom ECM terminal 32
lto combination meter terminal 66.
The needle on the gauge moves from “C” to “H”
SKIA0896E

COMBINATION METERS (RHD MODELS)
DI-23
C
D
E
F
G
H
I
J
L
MA
B
DI
Diesel engine models
The water temperature gauge indicates the engine coolant temperature. The reading on the gauge is based
on the resistance of the thermal transmitter.
As the temperature of the coolant increases, the resistance of the thermal transmitter decreases. A variable
ground is supplied to terminal 66 of the combination meter for the water temperature gauge. The needle on
the gauge moves from “C” to “H”.
TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm).
The tachometer is regulated by a signal
lfrom terminal 36 (Gasoline engine models) or D1 (Diesel engine models) of the ECM
lto combination meter terminal 41 for the tachometer.
FUEL GAUGE
The fuel gauge indicates the approximate fuel level in the fuel tank.
The fuel gauge is regulated by a variable ground signal supplied
lfrom body grounds , B107 and B119
lthrough terminal 1 and 3 of the Sub fuel level sensor unit and
lthrough terminal 4 and 1 of the fuel level sensor unit
lto combination meter terminal 40 for the fuel gauge.
SPEEDOMETER
The combination meter provides a voltage signal to the vehicle speed signal from 4WD/ABS control unit (with-
out ESP) or 4WD control unit (with ESP).
The voltage is supplied
lfrom combination meter terminal 42 for the speedometer
lto terminal 20 of 4WD/ABS control unit (without ESP) or 4WD control unit (with ESP).
The speedometer converts the voltage into the vehicle speed displayed.
Component Parts and Harness Connector LocationEKS0030I
SKIA1030E