sensor NISSAN X-TRAIL 2003 Electronic Repair Manual

TROUBLE DIAGNOSIS
BRC-115
[ESP/TCS/ABS]
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3.SYMPTOM CHECK 3
Does the symptom appear during normal braking operation?
CAUTION:
ABS may work in following driving conditions even if there is no sudden brake.
lWhen road friction is low.
lHigh speed cornering
lWhenagustofwind
Is inspection result OK?
YES >> GO TO 4.
NO >> Normal
4.SYMPTOM CHECK 4
Check that the symptom is reproduce when the engine speed is increased with the vehicle stopped.
Is inspection result OK?
YES >> GO TO 5.
NO >>
lNormal.
CAUTION:
This symptom may appear with vehicle stopped.
5.SYMPTOM CHECK 5
Check that the symptom is reproduce when any switch of electrical equipment is operated.
Is inspection result OK?
YES >> Check that there are no radio, antenna, and antenna lead-in wires (including wiring) near control
unit.
NO >> GO TO 6.
6.ABS WARNING LAMP INSPECTION
Check that the ABS warning lamp turns on.
Is inspection result OK?
YES >> Perform the self-diagnosis.
NO >> GO TO 7.
7.WHEEL SPEED SENSOR INSPECTION
Check the wheel speed sensor system.
lSensor mounting inspection
lSensor pick-up inspection for iron chips (e.g. Number of teeth, damaged teeth)
lSensor connector engagement inspection
lWheel speed sensor path harness and connector inspection
Is inspection result OK?
YES >> Normal
NO >> Wheel speed sensor and rotor lines repair
Symptom 6: ESP OFF Indicator Lamp Does Not IlluminateEFS001AX
Inspection procedure
1.ESP OFF INDICATOR LAMP INSPECTION
Disconnect the ESP/TCS/ABS control unit connector.
Does the ABS warning lamp and ESP OFF indicator lamp illuminate?
YES >> ESP/TCS/ABS control unit malfunction. Repair or replace the control unit.
NO >> Combination meter system malfunction. Check the combination meter.

TROUBLE DIAGNOSIS
BRC-117
[ESP/TCS/ABS]
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3.ECM SELF-DIAGNOSIS RESULT CHECK
Perform the ECM self-diagnosis.
Is the self-diagnosis results indicated?
YES >> Repair or replace the camshaft position sensor system.
NO >> GO TO 4.
4.SELF-DIAGNOSIS RESULT 2
Disconnect connectors for the ESP/TCS/ABS control unit and ECM, and reconnect them correctly to perform
the self-diagnosis again.
Is inspection result OK?
OK >> GO TO 5.
NG >> Connector malfunction. Repair or replace the connector.
5.SELF-DIAGNOSIS RESULT CHECK 3
Perform the 4WD control unit self-diagnosis.
Is inspection result OK?
OK >> GO TO 6.
NG >> Repair or replace the applicable part.
6.SELF-DIAGNOSIS RESULT CHECK 4
Perform the ESP/TCS/4WD control unit self-diagnosis again.
Is the self-diagnosis results displayed?
YES >> Repair or replace the applicable item.
NO >> GO TO 7.
7.CIRCUIT CHECK BETWEEN ESP/TCS/ABS CONTROL UNIT AND ECM
1. Disconnect connectors for the ESP/TCS/ABS control unit and ECM.
2. Check the engine speed signal harness between the ESP/TCS/ABS control unit and ECM for an open/
shorted circuit.
3. Check connectors for the ESP/TCS/ABS control unit and ECM.
Is inspection result OK?
OK >> Inspection End
NG >> Repair or replace the applicable item and perform the ESP/TCS/ABS control unit self-diagnosis
again.

WHEEL SPEED SENSORS
BRC-119
[ESP/TCS/ABS]
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WHEEL SPEED SENSORSPFP:47910
Removal and InstallationEFS001CD
CAUTION:
lBe careful not to damage sensor edge and rotor tooth. Before removing front or rear wheel hub,
remove wheel speed sensor to avoid sensor wiring damage. Otherwise, sensor may be deacti-
vated.
lWhen removing sensor, avoid rotating it as much as possible. Do not forcibly pull sensor harness.
lWhen installing, check sensor pick-up and mounting hole for foreign material such as iron chips.
Check no foreign material has been caught in sensor rotor. Remove any foreign material found.
Tighten mounting bolts and nuts to the specified torque.
SFIA0042E

BRC-120
[ESP/TCS/ABS]
SENSOR ROTOR
SENSOR ROTOR
PFP:47970
Removal and InstallationEFS001CE
REMOVAL
Front
1. Remove drive shaft. Refer toFAX-11, "REMOVAL"in “FAX Front Axle”.
2. Remove sensor rotor from drive shaft. Refer to “FAX Front axle/Drive shaft ”FAX-13, "
DISASSEMBLY"
Rear
1. Remove drive shaft. Refer toRAX-9, "Removal"in “RAX Rear Axle/Drive Shaft”.
2. Remove sensor rotor from drive shaft. Refer to “RAX Rear axle/Drive shaft”RAX-10, "
DISASSEMBLY"
INSTALLATION
Front
1. Install sensor rotor to drive shaft. Refer to “FAX Front axle/Drive shaft”FAX-15, "ASSEMBLY"
2. Connect drive shaft. Refer toFAX-12, "INSTALLATION"in “FAX Front Axle/Drive Shaft”.
Rear
1. Install sensor rotor to drive shaft. Refer to RAX Rear axle/Drive shaft”RAX-12, "ASSEMBLY"
2. Connect drive shaft. Refer toRAX-9, "Installation"in “RAX Rear Axle/Drive Shaft”.

BRC-122
[ESP/TCS/ABS]
YAW RATE/SIDE G SENSOR
YAW RATE/SIDE G SENSOR
PFP:47931
Removal and InstallationEFS001CS
REMOVAL
1. Remove the diagnosis sensor unit. Refer toSRS-39, "DIAGNO-
SIS SENSOR UNIT".
2. Disconnect the harness connector.
3. Remove the mounting bolts, and remove the yaw rate / side G
sensor.
CAUTION:
Do not drop or strike the yaw rate / side G sensor, because it
has little endurance against impact.
INSTALLATION
lInstallation is the reverse order of removal.
CAUTION:
Do not drop or strike the yaw rate / side G sensor, because it has little endurance against impact.
SFIA0331E

THERMOSTAT AND WATER CONTROL VALVE
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[QR20DE]
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THERMOSTAT AND WATER CONTROL VALVEPFP:21200
Removal and InstallationEBS009SK
WA RN ING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
coolant escaping from the radiator.
REMOVAL
Thermostat Removal
1. Drain engine coolant. Refer toCO-9, "DRAINING ENGINE COOLANT".
CAUTION:
Perform when the engine cold.
2. Disconnect radiator lower hose at water inlet side.
3. Remove water inlet and thermostat.
Water Control Valve Removal
1. Drain engine coolant. Refer toCO-9, "DRAINING ENGINE COOLANT".
2. Disconnect upper radiator hose, heater pipe and heater hose at water outlet side.
3. Remove water outlet.
4. Remove water control valve.
PBIC0239E
1 Thermostat 2 Water inlet 3 Water control valve
4 Water outlet 5 Heater hose 6 Engine coolant temperature sensor
7Heaterpipe

SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
CapacityEBS009SL
ThermostatEBS009SM
Water Control ValveEBS009SN
RadiatorEBS009SO
Unit:kPa(bar,kg/cm2,psi)
Tightening TorqueEBS009SP
Unit: N·m (kg-m, ft-lb) Nm(kg-m, in-lb)* Coolant capacity [With reservoir tank (MAX level)]
Approximately 7.1 (6-1/4 Imp qt)
Valve opening temperature 80.5 - 83.5°C (177 - 182°F)
Valve liftMore than 8 mm/ 95°C (0.315 in/203°F)
Valve opening temperature 93.5 - 96.5°C (200 - 206°F)
Valve lift More than 8 mm/108°C (0.315 in/226°F)
Cap relief pressureStandard 78 - 98 (0.78 - 0.98, 0.8 -1.0, 11- 14)
Limit 59 (0.59, 0.6, 9)
Leakage test pressure 157 (1.57, 1.6, 23)
Radiator mounting bracket
Radiator fan assembly
Fan
Fan motor3.8 - 4.5 (0.39 - 0.46, 34 - 39)*
3.8 - 4.5 (0.39 - 0.46, 34 - 39)*
2.9 - 3.9 (0.30 - 0.40, 26 - 34)*
3.9 - 4.9 (0.40 - 0.50, 35 - 43)*
Water pum p
Water pump housing
Water inlet
Water outlet
Water pipet
Hater pip
Water temperature sensor20.8 - 28.2 (2.1 - 2.9, 16- 20)
20.8 - 28.2 (2.1 - 2.9, 16 - 20)
20.8 - 28.2 (2.1 - 2.9, 16- 20)
20.8 - 28.2 (2.1 - 2.9, 16 - 20)
20.8 - 28.2 (2.1 - 2.9, 16 - 20)
20.8 - 28.2 (2.1 - 2.9, 16 - 20)
19.6 - 29.4 (2.0 - 3.0, 14- 22)

DI-1
DRIVER INFORMATION SYSTEM
K ELECTRICAL
CONTENTS
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SECTION
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DRIVER INFORMATION SYSTEM
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Wiring Diagrams and Trouble Diagnosis .................. 3
COMBINATION METERS (LHD MODELS) ................ 4
System Description .................................................. 4
UNIFIED CONTROL METER ................................ 4
HOW TO CHANGE THE DISPLAY FOR ODO/
TRIP METER ........................................................ 4
POWER SUPPLY AND GROUND CIRCUIT ........ 4
WATER TEMPERATURE GAUGE ........................ 4
TACHOMETER ..................................................... 5
FUEL GAUGE ....................................................... 5
SPEEDOMETER ................................................... 5
Component Parts and Harness Connector Location..... 5
Combination Meter ................................................... 6
CHECK .................................................................. 6
Schematic ................................................................ 7
Wiring Diagram — METER — .................................. 8
Meter/Gauge Operation and Odo/Trip Meter Seg-
ment Check in Diagnosis Mode ............................. 10
DIAGNOSIS FUNCTION ..................................... 10
HOW TO ALTERNATE DIAGNOSIS MODE ....... 10
Trouble Diagnoses ................................................. 10
PRELIMINARY CHECK ...................................... 10
SYMPTOM CHART ..............................................11
Power Supply and Ground Circuit Check ............... 12
Inspection/Engine Speed Signal ............................ 12
Inspection/Water Temperature Gauge /Gasoline
Engine Models ....................................................... 13
Inspection/Water Temperature Gauge (Diesel
Engine Models) ...................................................... 13
Inspection/Vehicle speed signal ............................. 14
Inspection/Fuel Level Sensor Unit ......................... 15
FUEL LEVEL SENSOR UNIT ............................. 15
LOW-FUEL WARNING LAMP ............................. 15
The Fuel Gauge Pointer Fluctuates·Indicator
Wrong Value·or Varies. ........................................... 17
The Fuel Gauge Does Not Move to F-position. ...... 18The Fuel Gauge Does Not Work. ........................... 18
Low Fuel Warning Lamp Illuminate or Not Illuminate... 19
Electrical Components Inspection .......................... 19
FUEL LEVEL SENSOR UNIT CHECK / GASO-
LINE ENGINE MODELS ..................................... 19
FUEL LEVEL SENSOR UNIT CHECK / DIESEL
ENGINE MODELS EXCEPT FOR NORTHERN
EUROPE ............................................................. 19
FUEL LEVEL SENSOR UNIT CHECK / DIESEL
ENGINE MODELS FOR NORTHERN EUROPE... 20
THERMAL TRANSMITTER CHECK ................... 20
Removal and Installation for Combination Meter .... 21
Disassembly and Assembly for Combination Meter... 21
COMBINATION METERS (RHD MODELS) .............. 22
System Description ................................................. 22
UNIFIED CONTROL METER .............................. 22
HOW TO CHANGE THE DISPLAY FOR ODO/
TRIP METER ....................................................... 22
POWER SUPPLY AND GROUND CIRCUIT ....... 22
WATER TEMPERATURE GAUGE ...................... 22
TACHOMETER .................................................... 23
FUEL GAUGE ..................................................... 23
SPEEDOMETER ................................................. 23
Component Parts and Harness Connector Location... 23
Combination Meter ................................................. 24
CHECK ................................................................ 24
Schematic ............................................................... 25
Wiring Diagram — METER — ................................ 26
Meter/Gauge Operation and Odo/Trip Meter Seg-
ment Check in Diagnosis Mode .............................. 28
DIAGNOSIS FUNCTION ..................................... 28
HOW TO ALTERNATE DIAGNOSIS MODE ....... 28
Trouble Diagnoses ................................................. 28
PRELIMINARY CHECK ....................................... 28
SYMPTOM CHART ............................................. 29
Power Supply and Ground Circuit Check ............... 30
Inspection/Engine Speed Signal ............................. 30
Inspection/Water Temperature Gauge /Gasoline
Engine Models ........................................................ 31
Inspection/Water Temperature Gauge (Diesel

DI-2
Engine Models) ....................................................... 31
Inspection/Vehicle speed signal ............................. 32
Inspection/Fuel Level Sensor Unit .......................... 33
FUEL LEVEL SENSOR UNIT .............................. 33
LOW-FUEL WARNING LAMP ............................. 33
The Fuel Gauge Pointer Fluctuates·Indicator
Wrong Value·or Varies. ........................................... 35
The Fuel Gauge Does Not Move to F-position. ...... 36
The Fuel Gauge Does Not Work. ........................... 36
Low Fuel Warning Lamp Illuminate or Not Illuminate... 37
Electrical Components Inspection .......................... 37
FUEL LEVEL SENSOR UNIT CHECK / GASO-
LINE ENGINE MODELS ...................................... 37
FUEL LEVEL SENSOR UNIT CHECK / DIESEL
ENGINE MODELS ............................................... 37
THERMAL TRANSMITTER CHECK ................... 38
Removal and Installation for Combination Meter .... 38
Disassembly and Assembly for Combination Meter... 38
WARNING LAMPS .................................................... 39
Schematic ............................................................... 39
Wiring Diagram — WARN —/ LHD Models ............ 40Wiring Diagram — WARN — / RHD Models ...........45
Electrical Components Inspection ...........................50
FUEL WARNING LAMP OPERATION CHECK ... 50
OIL PRESSURE SWITCH CHECK ......................50
DIODE CHECK ....................................................50
A/T INDICATOR .........................................................51
Wiring Diagram — AT/IND — .................................51
WARNING CHIME .....................................................52
System Description .................................................52
POWER SUPPLY AND GROUND CIRCUIT .......52
IGNITION KEY WARNING CHIME ......................52
LIGHT WARNING CHIME ...................................52
Component Parts and Harness Connector Location... 53
Wiring Diagram — CHIME — .................................54
Symptom Chart .......................................................56
Power Supply and Ground Circuit Check ...............56
Lighting Switch Input Signal Check .........................57
Key Switch Insert Signal Check ..............................57
Door Unlock Sensor Check .....................................58
Front Door Switch (driver side) Check ....................59
CLOCK ......................................................................60
Wiring Diagram — CLOCK — .................................60

DI-4
COMBINATION METERS (LHD MODELS)
COMBINATION METERS (LHD MODELS)
PFP:24810
System DescriptionEKS002Z7
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 45.
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 46.
Ground is supplied
lthrough body grounds M27 and M70
lto combination meter terminal 47.
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 55.
The needle on the gauge moves from “C” to “H”
SKIA0896E