2001 NISSAN X-TRAIL engine control

LT-14
HEADLAMP - DAYTIME LIGHT SYSTEM -
Trouble Diagnoses
EKS003CO
DAYTIME LIGHT CONTROL UNIT INSPECTION TABLE
*: Daytime light operating: Lighting switch in “OFF” position with engine running.
Bulb ReplacementEKS003CP
Refer toLT-4, "HEADLAMP"
Aiming AdjustmentEKS003BE
Refer toLT-4, "HEADLAMP"
Terminal
No.WIRE
COLORConnectionsINPUT (I)/
OUTPUT
(O)Operated conditionVoltage (V)
(Approximate val-
ues)
1 G/WPower source for illumi-
nation & tail lamp—— 12
2LGPower source for head-
lamp LH—— 12
3R/WPower source for head-
lamp RH—— 12
4 G/Y Headlamp RH OON (daytime light operating*) 12
OFF 0
5 Y/G Headlamp LH OON (daytime light operating*) 12
OFF 0
6 B/Y Start signal I Ignition switchSTART 12
ON, ACC or OFF 0
7 BR IGN power supply — Ignition switchON or START 12
ACC or OFF 0
8 Y/R Alternator “L” terminal I EngineRunning 12
Stopped 0
9 B Ground — — —
10 R/L Illumination & tail lamp OON (daytime light operating*) 12
OFF 0
11 R/L Lighting switch I1ST·2ND position 12
OFF 0

DI-1
DRIVER INFORMATION SYSTEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTION
A
B
DI
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 .................................................. 11
PRELIMINARY CHECK ....................................... 11
SYMPTOM CHART ............................................. 12
Power Supply and Ground Circuit Check ............... 13
Inspection/Engine Speed Signal ............................ 13
Inspection/Water Temperature Gauge /Gasoline
Engine Models ....................................................... 14
Inspection/Water Temperature Gauge (Diesel
Engine Models) ...................................................... 15
Inspection/Vehicle speed signal ............................. 16
Inspection/Fuel Level Sensor Unit ......................... 17
FUEL LEVEL SENSOR UNIT ............................. 17
LOW-FUEL WARNING LAMP ............................. 17
The Fuel Gauge Pointer Fluctuates·Indicator
Wrong Value·or Varies. ........................................... 18
The Fuel Gauge Does Not Move to Full-position. ... 19The Fuel Gauge Does Not Work. ........................... 19
Low Fuel Warning Lamp Illuminate or Not Illuminate ... 20
Electrical Components Inspection .......................... 21
FUEL LEVEL SENSOR UNIT CHECK / GASO-
LINE ENGINE MODELS ..................................... 21
FUEL LEVEL SENSOR UNIT CHECK / DIESEL
ENGINE MODELS EXCEPT FOR NORTHERN
EUROPE ............................................................. 21
FUEL LEVEL SENSOR UNIT CHECK / DIESEL
ENGINE MODELS FOR NORTHERN EUROPE ... 22
THERMAL TRANSMITTER CHECK ................... 22
Removal and Installation for Combination Meter .... 23
Disassembly and Assembly for Combination Meter ... 23
COMBINATION METERS (RHD MODELS) .............. 24
System Description ................................................. 24
UNIFIED CONTROL METER ...........................
... 24
HOW TO CHANGE THE DISPLAY FOR ODO/
TRIP METER ....................................................... 24
POWER SUPPLY AND GROUND CIRCUIT ....... 24
WATER TEMPERATURE GAUGE ...................... 24
TACHOMETER .................................................... 25
FUEL GAUGE ..................................................... 25
SPEEDOMETER ................................................. 25
Component Parts and Harness Connector Location ... 25
Combination Meter .............................................. ... 26
CHECK ................................................................ 26
Schematic ............................................................... 27
Wiring Diagram — METER — ................................ 28
Meter/Gauge Operation and Odo/Trip Meter Seg-
ment Check in Diagnosis Mode .............................. 30
DIAGNOSIS FUNCTION ..................................... 30
HOW TO ALTERNATE DIAGNOSIS MODE ....... 30
Trouble Diagnoses ................................................. 30
PRELIMINARY CHECK ....................................... 30
SYMPTOM CHART ............................................. 32
Power Supply and Ground Circuit Check ............... 32
Inspection/Engine Speed Signal ............................. 33
Inspection/Water Temperature Gauge/Gasoline
Engine Models ........................................................ 33
Inspection/Water Temperature Gauge/Diesel

DI-4
COMBINATION METERS (LHD MODELS)
COMBINATION METERS (LHD MODELS)
PFP:24810
System DescriptionEKS002Z7
UNIFIED CONTROL METER
●Speedometer, odo/trip meter, tachometer, fuel gauge and water temperature gauge are controlled totally
by control unit built-in combination meter.
●Digital 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.
●Odo/trip meter segment can be checked in diagnosis mode.
●Meter/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
●through 10A fuse [No. 28, located in the fuse block (J/B)]
●to combination meter terminal 45.
With the ignition switch in the ON or START position, power is supplied
●through 10A fuse [No. 11, located in the fuse block (J/B)]
●to combination meter terminal 46.
Ground is supplied
●through body grounds M27 and M70
●to 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
●from ECM terminal 32
●to combination meter terminal 55.
The needle on the gauge moves from “C” to “H”
SKIA0896E

COMBINATION METERS (LHD MODELS)
DI-5
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 55 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
●from terminal 36 (Gasoline engine models) or D1 (Diesel engine models) of the ECM
●to combination meter terminal 54 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
●from body grounds, B8 and B18
●through terminals 4 and 1 of the fuel level sensor unit and
●through terminals 1 and 3 of the Sub fuel level sensor unit
●to combination meter terminal 51 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
●from combination meter terminal 52 for the speedometer
●to terminal 20 of 4WD control unit (with ESP) or 4WD/ABS control unit (without ESP).
The speedometer converts the voltage into the vehicle speed displayed.
Component Parts and Harness Connector LocationEKS002Z8
SKIA4420E

DI-12
COMBINATION METERS (LHD MODELS)
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 unit 1. Check the sensor for malfunctioning meter/gauge.
–INSPECTION/ENGINE SPEED SIGNAL (Refer to DI-13, "Inspec-
tion/Engine Speed Signal" .)
–INSPECTION/FUEL LEVEL SENSOR UNIT (Refer to DI-17,
"Inspection/Fuel Level Sensor Unit" .)
–INSPECTION/THERMAL TRANSMITTER (Refer to DI-14,
"Inspection/Water Temperature Gauge /Gasoline Engine Models"
or DI-15, "Inspection/Water Temperature Gauge (Diesel Engine
Models)" .)
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 to DI-13,
"Inspection/Engine Speed Signal" .)
2. Replace combination meter
Multiple meter/gauge are
malfunctioning.
●Unified meter control unit●Replace combination meter.

DI-16
COMBINATION METERS (LHD MODELS)
Inspection/Vehicle speed signal
EKS002ZH
1. CHECK ABS WARNING LAMP
●Turn the ignition switch ON, then ABS warning lamp turn ON.
OK or NG
OK >> Check 4WD control unit (with ESP) or 4WD/ABS control unit (without ESP).
NG >> GO TO 2.
2. CHECK HARNESS FOR OPEN OR SHORT
1. Disconnect combination meter connector and 4WD control unit (with ESP) or 4WD/ABS control unit (with-
out ESP) connector.
2. Check continuity between combination meter harness connector
M46 terminal 52 (R/B) and 4WD control unit (with ESP) or 4WD/
ABS control unit (without ESP) harness connector E122 terminal
20 (R/B).
3. Check continuity between combination meter harness connector
M46 terminal 52 (R/B) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK 4WD/ABS CONTROL UNIT (WITHOUT ESP) OR 4WD CONTROL UNIT (WITH ESP) OUTPUT
1. Connect combination meter connector.
2. Check voltage between combination meter harness connector
M46 terminal 52 (R/B) and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace combination meter.
4. CHECK VEHICLE SPEED INPUT SIGNAL
1. Connect 4WD control unit (with ESP) or 4WD/ABS control unit
(without ESP) 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. (Use “SIMPLE
OSCILLOSCOPE” in “SUB MODE” with CONSULT-II.)
OK or NG
OK >> Replace combination meter.
NG >> Check 4WD control unit (with ESP) or 4WD/ABS control unit (without ESP). ABS warning lamp should illuminate.
Continuity should exist.
Continuity should not exist.
SKIA4423E
Approx. 9V
SKIA1004E
52 (R/B) – ground
SKIA0990E

DI-24
COMBINATION METERS (RHD MODELS)
COMBINATION METERS (RHD MODELS)
PFP:24810
System DescriptionEKS0030H
UNIFIED CONTROL METER
●Speedometer, odo/trip meter, tachometer, fuel gauge and water temperature gauge are controlled totally
by control unit built-in combination meter.
●Digital 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.
●Odo/trip meter segment can be checked in diagnosis mode.
●Meter/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
●through 10A fuse [No. 28, located in the fuse block (J/B)]
●to combination meter terminal 58.
With the ignition switch in the ON or START position, power is supplied
●through 10A fuse [No. 11, located in the fuse block (J/B)]
●to combination meter terminal 59.
Ground is supplied
●through body grounds M27 and M70
●to 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
●from ECM terminal 32
●to combination meter terminal 66.
The needle on the gauge moves from “C” to “H”
SKIA0896E

COMBINATION METERS (RHD MODELS)
DI-25
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
●from terminal 36 (Gasoline engine models) or D1 (Diesel engine models) of the ECM
●to 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
●from body grounds, B107 and B119
●through terminals 4 and 1 of the fuel level sensor unit and
●through terminals 1 and 3 of the sub fuel level sensor unit
●to 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
●from combination meter terminal 42 for the speedometer
●to terminal 20 of 4WD control unit (with ESP) or 4WD/ABS control unit (without ESP).
The speedometer converts the voltage into the vehicle speed displayed.
Component Parts and Harness Connector LocationEKS0030I
SKIA4426E