2003 NISSAN X-TRAIL heating

AT-256
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — BASIC INSPECTION

TROUBLE DIAGNOSIS — BASIC INSPECTIONPFP:00000
A/T Fluid CheckECS004VR
FLUID LEAKAGE CHECK
1. Clean area suspected of leaking. — for example, mating surface
of converter housing and transmission case.
2. Start engine, apply foot brake, place selector lever in D position
and wait a few minutes.
3. Stop engine.
4. Check for fresh leakage.
FLUID CONDITION CHECK
FLUID LEVEL CHECK
Refer to AT- 1 6 , "Checking A/T Fluid" .
SAT767B
SAT288G
Fluid color Suspected problem
Dark or black with burned odor Wear of frictional material
Milky pink Water contamination — Road water
entering through filler tube or breather
Varnished fluid, light to dark brown and
tackyOxidation — Over or under filling, —
Overheating
SAT638A

BRC-110
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

Actuator operation check
1. Connect 9 and 10 terminals of actuator to 40 and 41 terminals of
relay box.
2. Measure the motor voltage (No.4 terminal to body earth) with
oscilloscope. Then check the motor reverse voltage occasioned
time.
The motor reverse voltage occasioned time is more than 0.1
sec.
CAUTION:

Perform checking of motor relay unit. Then confirm that
relay functions.

Driving actuator motor is with in 4 sec. to prevent heating
up.

Standard condition of the motor reverse voltage occa-
sioned time is: Battery voltage is 12V. Temperature 20°.
when the battery voltage or temperature is lower than the
standard, the motor reverse voltage occasioned time
becomes slightly shorter.
Symptom 1: ABS Works Frequently.EFS001AS
Inspection procedure
1. INSPECTION START
Check the wheel sensor system.

Sensor mounting inspection

Sensor pick-up inspection for iron chips

Sensor rotor inspection (e.g. Number of teeth, damaged teeth)

Sensor connector engagement inspection
Is inspection result OK?
YES >> GO TO 2.
NO >> Refer to wheel sensor and rotor lines.
2. LOOSENESS INSPECTION
Check front axle for looseness.
Is inspection result OK?
YES >>BRC-110, "Symptom 2: Unexpected Pedal Action"
NO >> Axle inspection and repair
Symptom 2: Unexpected Pedal ActionEFS001AT
Inspection procedure
1. BRAKE PEDAL STROKE INSPECTION
Check the brake pedal stroke.
Is the stroke excessively long?
YES >> Check the bleeding and brake system.
NO >> GO TO 2.
SFIA1824E

GW-86
DOOR MIRROR

DOOR MIRRORPFP:96301
Precautions to Handle Retractable Power Door MirrorsEIS004JO

Do not manually operate retractable power door mirrors. If mirror
is operated manually, be sure to use the retracting switch to
move mirror fully to the opposite direction until it stops. In this
case, a loud click sound is heard, but it is not abnormal. (If mirror
body is manually moved to the neutral position, door mirror will
have some disturbing symptoms during driving, including vibra-
tion, rough retracting movement, or sometimes no retracting.)
CAUTION:
Tilting mirror body forward with excessive force may dam-
age it.

When operating retracting switch to move mirror from the neu-
tral position to the fully-closed (backward limit) position, at the
beginning of the movement a faint click sound is heard, but it is not abnormal.

RH and LH retractable power door mirror bodies have different mounting angles in the neutral position.
This is why the RH mirror body delays slightly when operated with the retracting switch.
NOTE:

When the retractable power door mirror body is in the neutral
position, if retracting switch is operated to the opening direc-
tion while pressing it forward, mirror body is moved to the for-
ward limit position, but it is not abnormal. In this case, be sure
to operate retracting switch to move mirror to the fully-closed
(backward limit) position.

When the retracting switch is operated continuously 5 times
or more, the retractable power door mirror may be inactivated
to prevent overheating. In this case, wait for approximately 5
minutes to recover.
PIIA0513E
PIIA0514E

ATC-2 INTAKE SWITCH ................................................. 31
A/C SWITCH ....................................................... 31
Discharge Air Flow ................................................. 32
System Description ................................................. 33
SWITCHES AND THEIR CONTROL FUNCTION ... 33
TROUBLE DIAGNOSIS ............................................ 34
How to Perform Trouble Diagnoses for Quick and
Accurate Repair ...................................................... 34
WORK FLOW ...................................................... 34
SYMPTOM TABLE .............................................. 34
Component Parts and Harness Connector Location ... 35
ENGINE COMPARTMENT .................................. 35
PASSENGER COMPARTMENT .......................... 36
Schematic ............................................................... 37
WITH GASOLINE ENGINE ................................. 37
WITH DIESEL ENGINE ....................................... 38
Wiring Diagram —A/C— ......................................... 39
WITH GASOLINE ENGINE / LHD MODELS ....... 39
WITH GASOLINE ENGINE / RHD MODELS ...... 43
WITH DIESEL ENGINE / LHD MODELS ............ 47
WITH DIESEL ENGINE / RHD MODELS ............ 51
Auto Amp. Terminals and Reference Value ............ 55
PIN CONNECTOR TERMINAL LAYOUT ............ 55
TERMINALS AND REFERENCE VALUE FOR
AUTO AMP. ......................................................... 55
Self-diagnosis Function .......................................... 57
DESCRIPTION .................................................... 57
FUNCTION CONFIRMATION PROCEDURE ...... 59
AUXILIARY MECHANISM: TEMPERATURE
SETTING TRIMMER ........................................... 63
AUXILIARY MECHANISM: FOOT POSITION
SETTING TRIMMER ........................................... 63
AUXILIARY MECHANISM: INLET PORT MEM-
ORY FUNCTION ................................................. 64
Operational Check .................................................. 65
CHECKING BLOWER ......................................... 65
CHECKING DISCHARGE AIR ............................ 65
CHECKING INTAKE DOOR ................................ 65
CHECKING TEMPERATURE DECREASE ......... 66
CHECKING TEMPERATURE INCREASE .......... 66
CHECKING A/C SWITCH ................................... 66
Power Supply and Ground Circuit for Auto Amp. ... 67
INSPECTION FLOW ........................................... 67
COMPONENT DESCRIPTION ............................ 67
DIAGNOSTIC PROCEDURE FOR A/C SYSTEM ... 68
LAN System Circuit ................................................ 69
DIAGNOSTIC PROCEDURE FOR LAN CIR-
CUIT .................................................................... 69
Mode Door Motor Circuit ........................................ 73
INSPECTION FLOW ........................................... 73
SYSTEM DESCRIPTION .................................... 74
COMPONENT DESCRIPTION ............................ 75
DIAGNOSTIC PROCEDURE FOR MODE
DOOR MOTOR ................................................... 75
Air Mix Door Motor Circuit ...................................... 76
INSPECTION FLOW ........................................... 76
SYSTEM DESCRIPTION .................................... 77
COMPONENT DESCRIPTION ............................ 78
DIAGNOSTIC PROCEDURE FOR AIR MIX DOOR MOTOR .................................................... 78
Intake Door Motor Circuit ........................................ 79
INSPECTION FLOW ............................................ 79
SYSTEM DESCRIPTION ..................................... 80
COMPONENT DESCRIPTION ............................ 81
DIAGNOSTIC PROCEDURE FOR INTAKE
DOOR MOTOR .................................................... 81
Blower Motor Circuit ................................................ 82
INSPECTION FLOW ............................................ 82
SYSTEM DESCRIPTION ..................................... 83
COMPONENT DESCRIPTION ............................ 84
DIAGNOSTIC PROCEDURE FOR BLOWER
MOTOR ................................................................ 84
COMPONENT INSPECTION ............................... 87
Magnet Clutch Circuit .............................................. 88
INSPECTION FLOW ............................................ 88
SYSTEM DESCRIPTION ..................................... 89
DIAGNOSTIC PROCEDURE FOR MAGNET
CLUTCH .............................................................. 89
COMPONENT INSPECTION ............................... 94
Insufficient Cooling .................................................. 96
INSPECTION FLOW ............................................ 96
PERFORMANCE TEST DIAGNOSIS .................. 98
PERFORMANCE CHART ..................................100
TROUBLE DIAGNOSIS FOR UNUSUAL PRES-
SURE .................................................................102
Insufficient Heating ...............................................105
INSPECTION FLOW ..........................................105
Noise .....................................................................107
INSPECTION FLOW ..........................................107
Self-diagnosis .......................................................108
INSPECTION FLOW ..........................................108
Ambient Sensor Circuit .........................................109
COMPONENT DESCRIPTION ..........................109
AMBIENT TEMPERATURE INPUT PROCESS .109
DIAGNOSTIC PROCEDURE FOR AMBIENT
SENSOR ............................................................109
COMPONENT INSPECTION ............................. 111
In-vehicle Sensor Circuit ....................................... 111
COMPONENT DESCRIPTION .......................... 111
DIAGNOSTIC PROCEDURE FOR IN-VEHICLE
SENSOR ............................................................112
COMPONENT INSPECTION .............................113
Sunload Sensor Circuit .........................................114
COMPONENT DESCRIPTION ..........................114
SUNLOAD INPUT PROCESS ...........................114
DIAGNOSTIC PROCEDURE FOR SUNLOAD
SENSOR ............................................................114
COMPONENT INSPECTION .............................116
Intake Sensor Circuit .............................................117
COMPONENT DESCRIPTION ..........................117
DIAGNOSTIC PROCEDURE FOR INTAKE SEN-
SOR ...................................................................117
COMPONENT INSPECTION .............................119
CONTROLLER ........................................................120
Removal and Installation .......................................120
REMOVAL ..........................................................120
INSTALLATION ..................................................120

ATC-34
TROUBLE DIAGNOSIS

TROUBLE DIAGNOSISPFP:00004
How to Perform Trouble Diagnoses for Quick and Accurate RepairEJS004GO
WORK FLOW
SYMPTOM TABLE
*1ATC-65, "Operational Check".
SHA900E
Symptom Reference Page
A/C system does not come on. Go to Trouble Diagnosis Procedure for A/C System.ATC-67, "
Power
Supply and
Ground Circuit for
Auto Amp."
Air outlet does not change.
Go to Trouble Diagnosis Procedure for Mode Door Motor. (LAN)ATC-73, "Mode
Door Motor Cir-
cuit"Mode door motor does not operate normally.
Discharge air temperature does not change.
Go to Trouble Diagnosis Procedure for Air Mix Door Motor. (LAN)AT C - 7 6 , "
Air Mix
Door Motor Cir-
cuit"Air mix door motor does not operate nor-
mally.
Intake door does not change.
Go to Trouble Diagnosis Procedure for Intake Door Motor. (LAN)AT C - 7 9 , "
Intake
Door Motor Cir-
cuit"Intake door motor does not operate normally.
Blower motor operation is malfunctioning.
Go to Trouble Diagnosis Procedure for Blower Motor.AT C - 8 2 , "
Blower
Motor Circuit"Blower motor operation is malfunctioning
under out of starting fan speed control.
Magnet clutch does not engage. Go to Trouble Diagnosis Procedure for Magnet Clutch.AT C - 8 8 , "
Magnet
Clutch Circuit"
Insufficient cooling Go to Trouble Diagnosis Procedure for Insufficient Cooling.ATC-96, "Insuffi-
cient Cooling"
Insufficient heating Go to Trouble Diagnosis Procedure for Insufficient Heating.ATC-105, "Insuffi-
cient Heating"
Noise Go to Trouble Diagnosis Procedure for Noise.ATC-107, "Noise"
Self-diagnosis cannot be performed. Go to Trouble Diagnosis Procedure for Self-diagnosis.ATC-108, "Self-
diagnosis"

ATC-66
TROUBLE DIAGNOSIS

CHECKING TEMPERATURE DECREASE
1. Turn temperature control dial until 18°C.
2. Check for cold air at discharge air outlets.
If NG, go to trouble diagnosis procedure for AT C - 9 6 , "
Insufficient
Cooling" .
If OK, continue the check.
CHECKING TEMPERATURE INCREASE
1. Turn temperature control dial until 32°C.
2. Check for hot air at discharge air outlets.
If NG, go to trouble diagnosis procedure for ATC-105, "
Insufficient
Heating" .
If OK, continue the check.
CHECKING A/C SWITCH
1. Turn fan control dial to AUTO position.
2. Press A/C switch.

Confirm that the compressor clutch engages (sound or visual
inspection). (Discharge air and blower speed will depend on
ambient, in-vehicle, and set temperatures.)
If NG, go to AT C - 6 7 , "
Power Supply and Ground Circuit for Auto
Amp." , then if necessary, trouble diagnosis procedure for AT C - 8 8 ,
"Magnet Clutch Circuit" .
If all operational checks are OK (symptom cannot be duplicated), go
to Incident Simulation Tests in GI-23, "
How to Perform Efficient Diag-
nosis for an Electrical Incident" and perform tests as outlined to sim-
ulate driving conditions environment. If symptom appears, refer to
AT C - 3 4 , "
SYMPTOM TABLE" and perform applicable trouble diagnosis procedures.
SJIA0398E
SJIA0399E
SJIA0400E

TROUBLE DIAGNOSIS
ATC-105
C
D
E
F
G
H
I
K
L
MA
B
AT C

Insufficient HeatingEJS004H3
SYMPTOM: Insufficient heating
INSPECTION FLOW
SJIA0409E

DESCRIPTION
MA-5
C
D
E
F
G
H
I
J
K
MA
B
MA

ROAD TEST
Check clutch operation
Check foot brake operation
Check parking brake operation
Check steering operation, self-centering and steering wheel alignment
Check engine performance
Check for squeaks, rattles and noise from interior, suspension and brakes
Check heating, ventilation and air conditioning operation
Check radio, cassette and CD player operation
Check odometer and trip meter operation and cancelling
Check instruments for operation
Check automatic transmission/transaxle shift pattern and kickdown operation (if applicable)
Check cruise control and navigation system operation (if applicable)
ENGINE OPERATING AND HOT
Check idle speed
Check automatic transmission/transaxle oil level (if applicable)
FINAL INSPECTION
Remove vehicle protection kit
Fit interior mats and wheel covers
Check for interior and exterior metal and paint damage
Wash, clean interior and exterior
: Not applicable to this model