2001 NISSAN X-TRAIL sensor

DI-32
COMBINATION METERS (RHD MODELS)
SYMPTOM CHART
Power Supply and Ground Circuit CheckEKS0030O
1. POWER SUPPLY CIRCUIT CHECK
OK or NG
OK >> GO TO 2.
NG >> Check the following:
●10A fuse [No. 11, located in fuse block (J/B)]
●10A fuse [No. 28, located in fuse block (J/B)]
●Harness for open or short between fuse and combination meter
2. GROUND CIRCUIT CHECK
OK or NG
OK >> Inspection end.
NG >> Repair harness or connector.
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 unit 1. Check the sensor for malfunctioning meter/gauge.
–Inspection/Engine Speed Signal (Refer to DI-33, "Inspection/
Engine Speed Signal" )
–Inspection/Fuel Level Sensor Unit (Refer to DI-37, "Inspection/
Fuel Level Sensor Unit" )
–Inspection/Water Temperature Gauge (Refer to DI-33, "Inspec-
tion/Water Temperature Gauge/Gasoline Engine Models" or DI-
35, "Inspection/Water Temperature Gauge/Diesel Engine Mod-
els" )
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 unit 1. Check the sensor for malfunctioning meter/gauge.–Inspection/Vehicle Speed Signal (Refer toDI-35, "Inspection/
Vehicle speed signal" )
2. Replace combination meter
Multiple meter/gauge are
malfunctioning.
●Unified meter control unit●Replace combination meter.
Terminals Ignition switch position
(+)
(−)OFF ACC ON
ConnectorTerminal
(wire color)
M46 58 (L) GroundBattery
voltageBattery
voltageBattery
voltage
M46 59 (W/L) Ground 0V 0VBattery
voltage
SKIA1019E
Te r m i n a l s
Continuity (+)
(-)
ConnectorTerminal
(wire color)
M46 60 (B) Ground Yes
SKIA1020E

COMBINATION METERS (RHD MODELS)
DI-37
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Inspection/Fuel Level Sensor UnitEKS0030T
FUEL LEVEL SENSOR UNIT
The following symptoms do not indicate a malfunction.
●Depending on vehicle posture or driving circumstance, the fuel level in the tank varies, and the pointer
may fluctuate.
●If 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 to DI-30, "
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 terminals or connectors.
3.CHECK FUEL LEVEL SENSOR 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 harnesses or connectors.Continuity should exist.
SKIA1027E
Continuity should exist.
SKIA1005E

DI-38
COMBINATION METERS (RHD MODELS)
4. CHECK FUEL LEVEL SENSOR 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.
OK or NG
OK >> GO TO 5.
NG >> Repair harnesses or connectors.
5. CHECK FUEL LEVEL SENSOR GROUND CIRCUIT
Check continuity between fuel level sensor unit harness connector
B123 (Gasoline engine models) or B124 (Diesel engine models) ter-
minal 1 (B/W) and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harnesses or connectors.
6. FUEL LEVEL SENSOR UNIT INSPECTION
Check the components. Refer to DI-41, "
Electrical Components Inspection" .
OK or NG
OK >> GO TO 7.
NG >> Replace fuel level sensor unit or sub fuel sensor unit.
7. 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.
Continuity should not exist.
SKIA1028E
Continuity should exist.
SKIA1007E

COMBINATION METERS (RHD MODELS)
DI-39
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The Fuel Gauge Does Not Move to Full-position.EKS0030V
1.QUESTION 1
Does it take a long time for the pointer to move to Full-position?
Ye s o r N o
Ye s > > G O T O 2 .
No >> GO TO 3.
2.QUESTION 2
Was the vehicle fueled with the ignition switch ON?
Ye s o r N o
Yes >> Be sure to fuel the vehicle with the ignition switch OFF. Otherwise it will take a long time to move
to Full-position because of the characteristic of the fuel gauge.
No >> GO TO 3.
3.QUESTION 3
Is the floor or the vehicle inclined?
Ye s o r N o
Yes >> It may not be filled fully.
No >> GO TO 4.
4.QUESTION 4
During driving, does the fuel gauge pointer move gradually toward E-position?
Ye s o r N o
Yes >> Check the components. Refer to DI-41, "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 or FL-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 to DI-41, "
Electrical Components
Inspection" .

DI-40
COMBINATION METERS (RHD MODELS)
Low Fuel Warning Lamp Illuminate or Not Illuminate
EKS0030X
1. DIAGNOSIS MODE INSPECTION
Preform combination meter diagnosis mode. Refer to DI-30, "
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 to DI-41, "Electrical Components
Inspection" .
NG >> Replace combination meter.

COMBINATION METERS (RHD MODELS)
DI-41
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Electrical Components InspectionEKS0031V
FUEL LEVEL SENSOR UNIT CHECK / GASOLINE ENGINE MODELS
For removal, refer to FL-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 1 and 3.
*1 and *2: When float rod is in contact with stopper.
FUEL LEVEL SENSOR UNIT CHECK / DIESEL ENGINE MODELS
For removal, refer to FL-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.
Sub fuel level sensor unit
Check the resistance between terminals 1 and 3.
*1 and *2: When float rod is in contact with stopper.Ohmmeter
Float position mm (in)Resistance
valueΩ
(+) (−)
41*1 Full 24 (2.36) Approx. 4 - 6
*2 Empty 167 (6.57) Approx. 79 - 84
SKIA0904E
Ohmmeter
Float position mm (in)Resistance
valueΩ
(+) (−)
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
valueΩ
(+) (−)
41*1 Full 24 (2.38) Approx. 4 - 6
*2 Empty 170 (6.46) Approx. 79 - 84
SKIA0908E
Ohmmeter
Float position mm (in)Resistance
valueΩ
(+) (−)
13*1 Full 35 (1.50) Approx. 0.8 - 1.0
*2 Empty 186(6.38) Approx. 38 - 42
SKIA1031E

DI-56
WARNING LAMPS
Electrical Components Inspection
EKS002HK
FUEL WARNING LAMP OPERATION CHECK
1. Turn ignition switch “OFF”.
2. Disconnect sub fuel level sensor unit harness connector B125
(LHD models) or B21 (RHD models).
3. Connect a resistor (80Ω) between sub fuel level sensor unit har-
ness 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
●Check continuity using an ohmmeter.
●Diode is functioning properly if test results are as shown in the
figure at left.
●Check diodes at the combination meter harness connector
instead of on the combination meter assembly. Refer toDI-44,
"Wiring Diagram — WARN —/ LHD Models" orDI-50, "Wiring
Diagram — WARN — / RHD Models" .
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

WARNING CHIME
DI-61
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Symptom ChartEKS002XQ
Symptom Diagnoses/ Service procedure Reference page
Light warning chime does not activate.
●Power supply and ground circuit checkDI-62, "
Power Supply
and Ground Circuit
Check"
●Lighting switch checkDI-63, "Lighting Switch
Input Signal Check"
●Front door switch (driver side) checkDI-68, "
Front Door
Switch (driver side)
Check"
Key warning chime does not activate.
●Power supply and ground circuit checkDI-62, "
Power Supply
and Ground Circuit
Check"
●Key switch insert signal checkDI-65, "Key Switch Insert
Signal Check"
●Door unlock sensor checkDI-66, "Door Unlock Sen-
sor Check"
●Front door switch (driver side) checkDI-68, "
Front Door
Switch (driver side)
Check"
Seat belt warning chime does not activate.●Seat belt warning system checkSB-6, "SEAT BELT
WARNING SYSTEM"
All warning chimes do not activate.
●Power supply and ground circuit checkDI-62, "
Power Supply
and Ground Circuit
Check"
●Front door switch (driver side) checkDI-68, "
Front Door
Switch (driver side)
Check"