sensor NISSAN X-TRAIL 2003 Electronic Repair Manual

COMBINATION METERS (RHD MODELS)
DI-29
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3.SEGMENTS CHECK
Check odo/trip meter segment.
Do all segments illuminate ?
YES >> GO TO 4.
NO >> Replace combination meter.
4.CHECK FUEL WARNING LAMP
Check fuel warning lamp in diagnosis mode. Refer toDI-28, "
Meter/Gauge Operation and Odo/Trip Meter
Segment Check in Diagnosis Mode".
Do fuel warning lamp illuminate?
OK >> GO TO 5.
NG >> Replace combination meter.
5.CHECK METER CIRCUIT
Check indication of each meter/gauge in diagnosis mode. Refer toDI-28, "
Meter/Gauge Operation and Odo/
Trip Meter Segment Check in Diagnosis Mode".
OK or NG ?
OK >> GO TO symptom chart.
NG >> Replace combination meter.
SYMPTOM CHART
Symptom Possible cause Repair procedure
Fuel warning lamp is
malfunctioning.
1. Sensor Signal
–Engine revolution signal
–Fuel gauge
–Water temp gauge
2. Unified meter control unit1. Check the sensor for malfunctioning meter/gauge.
–Inspection/Engine Speed Signal (Refer toDI-30, "Inspection/
Engine Speed Signal")
–Inspection/Fuel Level Sensor Unit (Refer toDI-33, "Inspection/
Fuel Level Sensor Unit")
–Inspection/Water Temperature Gauge (Refer toDI-31, "Inspec-
tion/Water Temperature Gauge /Gasoline Engine Models"or )
2. Replace combination meter One of tachometer/fuel
gauge/water temp. gauge is
malfunctioning.
Speedometer and odo/trip
meter is malfunctioning.1. Sensor Signal
–Vehicle speed signal
2. Unified meter control unit1. Check the sensor for malfunctioning meter/gauge.–Inspection/Vehicle Speed Signal (Refer toDI-32, "Inspection/
Vehicle speed signal")
2. Replace combination meter
Multiple meter/gauge are
malfunctioning.
lUnified meter control unitlReplace combination meter.

COMBINATION METERS (RHD MODELS)
DI-33
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3.CHECK 4WD/ABS CONTROL UNIT OUTPUT
1. Connect combination meter connector.
2. Check voltage between combination meter harness connector
M45 terminal 42 (R/B) and ground.
OK or NG ?
OK >> GO TO 4.
NG >> Replace combination meter.
4.CHECK VEHICLE SPEED INPUT SIGNAL
1. Connect 4WD/ABS control unit connector(without ESP) or 4WD
control unit (with ESP).
2. Lift up drive wheels.
3. Start engine.
4. Check voltage signal between combination meter harness con-
nector M45 terminal 42 (R/B) and ground.
OK or NG ?
OK >> Replace combination meter.
NG >> Check ABS system.
Inspection/Fuel Level Sensor UnitEKS0030T
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-28, "
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.Apporox. 9V
SKIA1026E
42 (R/B) – ground
SKIA0990E

DI-34
COMBINATION METERS (RHD 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 M45
terminal 40 (G) and sub fuel level sensor unit harness connector
B21 terminal 1 (G).
–Continuity between sub fuel level sensor unit harness connector
B21 terminal 3 (Y) and fuel level sensor unit harness connector
B123 (Gasoline engine models) or B124 (Diesel engine models)
terminal 4 (Y).
OK or NG ?
OK >> GO TO 4.
NG >> Repair or replace harnesses or connectors.Continuity should exist.
SKIA1027E
SKIA1005E

COMBINATION METERS (RHD MODELS)
DI-35
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4.CHECK HARNESS FOR SHORT CIRCUIT
1. Checking the following.
–Continuity between combination meter harness connector M45
terminal 40 (G) and ground.
–Continuity between sub fuel level sensor harness connector B21
terminal 3 (Y) and ground.
–Continuity between fuel level sensor unit harness connector
B123 (Gasoline engine models) or B124 (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-37, "
Electrical Components Inspection".
OK or NG
OK >> GO TO 6.
NG >> Replace fuel level sensor unit or sub fuel 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.EKS0030U
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.
SKIA1028E
SKIA1007E

DI-36
COMBINATION METERS (RHD MODELS)
The Fuel Gauge Does Not Move to F-position.
EKS0030V
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-37, "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.EKS0030W
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-37, "
Electrical Components
Inspection".

COMBINATION METERS (RHD MODELS)
DI-37
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Low Fuel Warning Lamp Illuminate or Not IlluminateEKS0030X
1.DIAGNOSIS MODE INSPECTION
Preform combination meter diagnosis mode. Refer toDI-28, "
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-37, "Electrical Components
Inspection".
NG >> Replace combination meter.
Electrical Components InspectionEKS0031V
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
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
23 Empty 170 (6.46) Approx. 79 - 84
SKIA0908E

DI-38
COMBINATION METERS (RHD 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.
THERMAL TRANSMITTER CHECK
Check the resistance between the terminals of thermal transmitter
and body ground.
Removal and Installation for Combination MeterEKS0030Z
1. Remove the cluster lid A. Refer toIP-3, "INSTRUMENT PANEL
ASSEMBLY".
2. Remove the screws (4), and pull out combination meter.
3. Disconnect connectors and remove combination meter.
Disassembly and Assembly for Combination MeterEKS00310
1. Disengaged the tabs(8) to separate front cover.
2. Remove finisher.
3. Remove bulbs.
Ohmmeter
Float position mm (in)Resistance
valueW
(+) (-)
13*1 Full 35 (1.50) Approx. 0.8 - 1.0
*3 Empty 186(6.38) Approx. 38 - 42
SKIA1031E
Water temperature Resistance
60°C(140°F) Approx. 170 - 210W
100°C (212°F) Approx. 47 - 53W
MEL424F
SKIA0036E
SKIA0044E

DI-50
WARNING LAMPS
Electrical Components Inspection
EKS002HK
FUEL WARNING LAMP OPERATION CHECK
1. Turn ignition switch “OFF”.
2. Disconnect fuel level sensor unit harness connector B125.
3. Connect a resistor (80W) between fuel level sensor unit harness
connector terminal 1(G) and ground.
4. Turn ignition switch “ON”.
The fuel warning lamp should come on.
OIL PRESSURE SWITCH CHECK
Check the continuity between the terminals of oil pressure switch
and body ground.
DIODE CHECK
lCheck continuity using an ohmmeter.
lDiode is functioning properly if test results are as shown in the
figure at left.
lCheck diodes at the combination meter harness connector
instead of on the combination meter assembly. Refer toDI-40,
"Wiring Diagram—WARN—/LHDModels"orDI-45, "Wiring
Diagram—WARN—/RHDModels".
NOTE:
Specification may vary depending on the type of tester. Before
performing this inspection, be sure to refer to the instruction
manual for the tester to be used.
SKIA0993E
Oil pressure kPa (bar,
kg/cm2,psi)Continuity
Engine runningMore than 10 - 20 (0.10 -
0.20,0.1-0.2,1-3)No
Engine not runningLess than 10 - 20 (0.10 -
0.20,0.1-0.2,1-3)Ye s
MEL425F
SEL901F

DI-52
WARNING CHIME
WARNING CHIME
PFP:24814
System DescriptionEKS002XF
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
lthrough 10A fuse (No.31, located in fuse and fusible link box)
lto combination switch terminal 11,and
lto daytime light control unit terminal 1(with daytime light control unit).
lthrough 10A fuse [No.28, located in the fuse block (J/B)]
lto key switch terminal 1 and
lto time control unit terminal 1.
With ignition switch in ON or START position, power is supplied
lthrough 10A fuse [No.5, located in the fuse block (J/B)]
lto time control unit terminal 17.
Ground is supplied
lto time control unit terminal 16
lthrough body grounds M27 and M70.
When a signal, or combination of signals, is received by the time control unit, the warning chime will sound.
IGNITION KEY WARNING CHIME
With ignition switch in OFF or ACC position, and the driver's door open and driver’s door locked, the warning
chime will sound. Power is supplied
lthrough key switch terminal 2
lto time control unit terminal 18 and
Ground is supplied
lto time control unit terminal 28
lthrough unlock sensor terminal 5
Unlock sensor terminal 2 is grounded through body grounds M27 and M70, and
Ground is supplied
lto time control unit terminal 30
lthrough front door (driver side) switch terminal 2.
Front door switch (driver side) terminal 3 is grounded through body grounds B8 and B18.
LIGHT WARNING CHIME
With ignition switch OFF position, driver's door open, and lighting switch in 1ST or 2ND position, warning
chime will sound. Power is supplied
lfrom the lighting switch terminal 12 or daytime light control unit terminal 10 (with daytime light system)
lto time control unit terminal 19.
Ground is supplied
lfrom Front door switch (driver side) terminal 2
lto time control unit terminal 30.
Front door switch (driver side) terminal 3 is grounded through body grounds B8 and B18.

DI-56
WARNING CHIME
Symptom Chart
EKS002XQ
Power Supply and Ground Circuit CheckEKS002YF
1.POWER SUPPLY CIRCUIT CHECK
1. Disconnect time control unit connector.
2. Check the following.
OK or NG
OK >> GO TO 2
NG >>
l10A fuse [ NO.28, located in fuse block (J/B)].
l10A fuse [ NO.5, located in fuse block (J/B)].
lCheck harness for open or short between time control unit and fuse.
Symptom Diagnoses/ Service procedure Reference page
Light warning chime does not activate.
lPower supply and ground circuit checkDI-56, "
Power Supply
and Ground Circuit
Check"
lLighting switch checkDI-57, "Lighting Switch
Input Signal Check"
lFront door switch (driver side) checkDI-59, "
Front Door
Switch (driver side)
Check"
Key warning chime does not activate.
lPower supply and ground circuit checkDI-56, "
Power Supply
and Ground Circuit
Check"
lKey switch insert signal checkDI-57, "Key Switch Insert
Signal Check"
lDoor unlock sensor checkDI-58, "Door Unlock Sen-
sor Check"
lFront door switch (driver side) checkDI-59, "
Front Door
Switch (driver side)
Check"
All warning chimes do not activate.
lPower supply and ground circuit checkDI-56, "
Power Supply
and Ground Circuit
Check"
lFront door switch (driver side) checkDI-59, "
Front Door
Switch (driver side)
Check"
Terminals IgnitiOn switch position
(+)
(–) OFF ACC ON
ConnectorTe r m i n a l
(Wire color)
M46 1(L/B) GroundBattery
voltageBattery
voltageBattery
voltage
M46 17(G) Ground 0V 0VBattery
voltage
SKIA0994E