2003 NISSAN X-TRAIL fuse

MTC-12
TROUBLE DIAGNOSIS

DIAGNOSTIC PROCEDURE FOR INTAKE DOOR MOTOR
SYMPTOM: Intake door does not operate normally.
1. CHECK POWER SUPPLY FOR HEATER CONTROL PANEL
1. Disconnect heater control panel connector.
2. Turn ignition switch ON.
3. Check voltage between heater control panel harness connector
M55 terminal 1 (BR/Y) and ground.
OK or NG
OK >> GO TO 2.
NG >> Check power supply circuit and 10 A fuse [No. 15,
located in the fuse block (J/B)]. Refer to PG-75, "
FUSE
BLOCK - JUNCTION BOX (J/B)" .

If OK, check harness for open circuit. Repair or replace if necessary.

If NG, replace fuse and check harness for short circuit. Repair or replace if necessary.
2. CHECK GROUND CIRCUIT FOR HEATER CONTROL PANEL
1. Turn ignition switch OFF.
2. Check continuity between heater control panel harness connec-
tor M55 terminal 5 (B) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK RECIRCULATION SWITCH CIRCUIT
1. Press REC (recirculation) switch.
2. Check continuity between heater control panel harness connec-
tor M55 terminal 1 (BR/Y) and 5 (B).
OK or NG
OK >> GO TO 4.
NG >> Replace heater control panel.
RJIA2846E
1 – Ground : Battery voltage
RJIA2923E
5 – Ground : Continuity should exist.
RJIA2924E
1 (−) – 5 (+) : Continuity should exist.
RJIA2925E

MTC-16
TROUBLE DIAGNOSIS

DIAGNOSTIC PROCEDURE FOR BLOWER MOTOR
SYMPTOM: Blower motor operation is malfunctioning.
1. CHECK POWER SUPPLY FOR BLOWER MOTOR
1. Disconnect blower motor connector.
2. Turn ignition switch ON.
3. Check voltage between blower motor harness connector M65
terminal 1 (L/W) and ground.
OK or NG
OK >> GO TO 2.
NG >> Check power supply circuit and 15A fuses [Nos. 19 and
24, located in the fuse block (J/B)]. Refer to PG-75,
"FUSE BLOCK - JUNCTION BOX (J/B)" .

If OK, check harness for open circuit. Repair or replace if necessary.

If NG, replace fuse and check harness for short circuit. Repair or replace if necessary.
2. CHECK GROUND CIRCUIT FOR BLOWER MOTOR
1. Turn ignition switch OFF.
2. Turn fan switch to 1-speed.
3. Check continuity between blower motor harness connector M65
terminal 2 (L/B) and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3. CHECK BLOWER MOTOR
Refer to MTC-18, "
Blower Motor" .
OK or NG
OK >> INSPECTION END
NG >> Replace blower motor.
RJIA0602E
1 – Ground : Battery voltage
RJIA2929E
2 – Ground : Continuity should exist.
RJIA2930E

BLOWER FAN RESISTOR
MTC-25
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MTC

BLOWER FAN RESISTORPFP:27150
Removal and InstallationEJS004HE
REMOVAL
1. Remove glove box cover. Refer to IP-11, "Removal and Installation" .
2. Remove mounting screws, and then remove fan resistor.
CAUTION:
Do not repair the thermal fuse of the fan resistor.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA0093E

SC-12
CHARGING SYSTEM

CHARGING SYSTEM PFP:00011
System Description EKS00316
The alternator provides DC voltage to operate the vehicle's electrical system and to keep the battery charged.
The voltage output is controlled by the IC regulator.
Power is supplied at all times

through 10A fuse (No. 34, located in the fuse and fusible link box)

to alternator terminal 4 (S).
Terminal B supplies power to charge the battery and operate the vehicle's electrical system. Output voltage is
controlled by the IC regulator at terminal 4 (S) detecting the input voltage. The charging circuit is protected by
the 120A (Gasoline engine models) or 100A (Diesel engine models) fusible link (letter A, located in the fuse
and fusible link box).
The alternator is grounded to the engine block.
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 2 for the charge warning lamp.
Ground is supplied with power and ground supplied

to terminal 5 of the combination meter

through alternator terminal 3 (L)

to alternator terminal E (Gasoline engine models) or through body ground (Diesel engine models)

through body ground E30 (Gasoline engine models).
The charge warning lamp will illuminate. When the alternator is providing sufficient voltage with the engine
running, the ground is opened and the charge warning lamp will go off.
If the charge warning lamp illuminates with the engine running, a malfunction is indicated.

STARTING SYSTEM
SC-21
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STARTING SYSTEM PFP:00011
System Description EKS0031F
M/T MODELS
Power is supplied at all times

through 30A fusible link (letter J, located in the fuse and fusible link box)

to ignition switch terminal 1.
With the ignition switch in the START position, power is supplied

from ignition switch terminal 5

to starter motor harness connector terminal 1.
The starter motor plunger closes and provides a closed circuit between the battery and starter motor. The
starter motor is grounded to the engine block. With power and ground supplied, cranking occurs and the
engine starts.
A/T MODELS
Power is supplied at all times

through 30A fusible link (letter J, located in the fuse and fusible link box)

to ignition switch terminal 1.
With the ignition switch in the START position, power is supplied

from ignition switch terminal 5

to park/neutral position relay terminal 5.
With the ignition switch in the ON or START position, power is supplied

through 10A fuse [No. 13, located in the fuse block (J/B)]

to park/neutral position relay terminal 1.
With the selector lever in the P or N position, ground is supplied

to park/neutral position relay terminal 2

through the park/neutral position switch terminals 1 and 2, and

through body grounds F9 and F10.
Then park/neutral position relay is energized and power is supplied

from park/neutral position relay terminal 3

to starter motor harness connector terminal 1.
The starter motor plunger closes and provides a closed circuit between the battery and starter motor. The
starter motor is grounded to the engine block. With power and ground supplied, cranking occurs and the
engine starts.

DI-4
COMBINATION METERS

COMBINATION METERSPFP:24814
System DescriptionEKS00EGZ
UNIFIED CONTROL METER

Speedometer, odo/trip meter, tachometer, fuel gauge and water temperature gauge are controlled by the
unified meter control unit, which is built into the 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 segments can be checked in diagnosis mode.

Meter/gauge can be checked in diagnosis mode.
HOW TO CHANGE THE DISPLAY FOR ODO/TRIP METER

The vehicle speed signal and the memory signals from the meter memory circuit are processed by the
combination meter and the mileage is displayed.

Ambient temperature indicator indicates signal from ambient sensor processed by combination meter.

Depressing the odo/trip meter switch toggles the mode in the following order.

The odo/trip meter display mode toggling and trip display resetting can be identified by the amount of time
that elapses from pressing the odo/trip meter switch to releasing it.

When resetting with trip A displayed, only trip A display is reset (Trip B operates the same way).
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 1.
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 terminals 2.
Ground is supplied

to combination meter terminals 21

through body grounds M27 and M70.
WATER TEMPERATURE GAUGE
The water temperature gauge indicates the engine coolant temperature.
ECM provides an engine coolant temperature signal to combination meter for water temperature gauge with
CAN communication line.
SKIA8917E

DI-20
COMBINATION METERS

7. Push the odo/trip meter switch. Each meter/gauge should indi-
cate as shown in the figure while pushing odo/trip meter switch.
(At this time, the low-fuel warning lamp goes off.)
How to Proceed With Trouble DiagnosisEKS00EH8
1. Confirm the symptom or customer complaint.
2. Perform diagnosis according to diagnosis flow. Refer to DI-20, "
Diagnosis Flow" .
3. According to the trouble diagnosis chart, repair or replace the cause of the symptom. Refer to DI-22,
"Trouble Diagnosis Chart for Symptom" .
4. Does the meter operate normally? If so, go to 5. If not, go to 2.
5. INSPECTION END
Diagnosis FlowEKS00EH9
1. CHECK WARNING LAMP ILLUMINATION
1. Turn ignition switch ON.
2. Make sure that warning lamp (such as MIL and oil pressure warning lamp) illuminate.
Does warning lamp illuminate?
YES >> GO TO 2.
NO >> Check ignition power supply circuit of combination meter. Refer to DI-21, "
Power Supply and
Ground Circuit Inspection" .
2. CHECK SELF-DIAGNOSIS OPERATION
Perform combination meter self-diagnosis. Refer to DI-19, "
SELF-DIAGNOSIS FUNCTION" .
Does self-diagnosis function operate?
YES >> GO TO 3.
NO >> Check battery power supply of combination meter and ground system. Refer to PG-75, "
FUSE
BLOCK - JUNCTION BOX (J/B)" .
3. CHECK ODO/TRIP METER OPERATION
Check segment display status of odo/trip meter.
Is the display normal?
YES >> GO TO 4.
NO >> Replace combination meter.
SKIA8921E
SKIA8920E

COMBINATION METERS
DI-21
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4. CHECK LOW-FUEL WARNING LAMP ILLUMINATION
During fuel warning lamp check, confirm illumination of low-fuel warning lamp.
OK or NG
OK >> GO TO 5.
NG >> Replace combination meter.
5. CHECK METER CIRCUIT
Check indication of each meter/gauge in self-diagnosis mode.
OK or NG
OK >> Go to diagnosis results. Refer to DI-22, "Trouble Diag-
nosis Chart for Symptom" .
NG >> Replace combination meter.
Power Supply and Ground Circuit InspectionEKS00EHA
1. CHECK FUSES
Check for blown combination meter fuses.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
76, "FUSE AND FUSIBLE LINK BOX" .
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between combination meter and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness between combination meter and fuse.
Condition of odo/trip meter switch Fuel warning lamp
Pushed Does not illuminate.
Released Illuminates.
SKIA8921E
Unit Power source Fuse No.
Combination meterBattery 28
Ignition switch (ON) 11
Terminals Ignition switch position
(+)
(–) OFF ON
Connector Terminal (Wire color)
M442 (Y/G)
Ground0VBattery
voltage
1 (L)Battery
voltageBattery
voltage
SKIA8922E