NISSAN X-TRAIL 2003 Service Repair Manual

TROUBLE DIAGNOSIS
ATC-115
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2. CHECK CIRCUIT CONTINUITY BETWEEN SUNLOAD SENSOR AND AUTO AMP.
1. Turn ignition switch OFF.
2. Disconnect auto amp. connector.
3. Check continuity between sunload sensor harness connector
M74 terminal 2 (B/Y) and auto amp. harness connector M53 ter-
minal 24 (B/Y).
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK SUNLOAD SENSOR.
1. Reconnect sunload sensor connector and auto amp. connector.
2. Refer to AT C - 11 6 , "
Sunload Sensor" .
OK or NG
OK >> 1. Replace auto amp.
2. Go to self-diagnosis AT C - 5 9 , "
FUNCTION CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-2.
NG >> 1. Replace sunload sensor.
2. Go to self-diagnosis AT C - 5 9 , "
FUNCTION CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-2.
4. CHECK CIRCUIT CONTINUITY BETWEEN SUNLOAD SENSOR AND AUTO AMP.
1. Turn ignition switch OFF.
2. Disconnect auto amp. connector.
3. Check continuity between sunload sensor harness connector
M74 terminal 1 (OR) and auto amp. harness connector M52 ter-
minal 10 (OR).
4. Check continuity between sunload sensor harness connector
M74 terminal 1 (OR) and ground.
OK or NG
OK >> 1. Replace auto amp.
2. Go to self-diagnosis AT C - 5 9 , "
FUNCTION CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-2.
NG >> Repair harness or connector.2 – 24 : Continuity should exist.
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1 – 10 : Continuity should exist.
1 – Ground : Continuity not should exist.
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ATC-116
TROUBLE DIAGNOSIS

COMPONENT INSPECTION
Sunload Sensor
Measure voltage between auto amp. harness connector M52 termi-
nal 10 (OR) and ground.
If NG, replace sunload sensor.

When checking sunload sensor, select a place where sun shines directly on it.
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SHA930E

TROUBLE DIAGNOSIS
ATC-117
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Intake Sensor CircuitEJS004L6
COMPONENT DESCRIPTION
Intake Sensor
The intake sensor is located on the heater & cooling unit. It converts
temperature of air after it passes through the evaporator into a resis-
tance value which is then input to the auto amp.
DIAGNOSTIC PROCEDURE FOR INTAKE SENSOR
SYMPTOM: Intake sensor circuit is open or shorted.
LED of A/C switch does not illuminate as a result of performing self-
diagnosis STEP-2.
1. CHECK VOLTAGE BETWEEN INTAKE SENSOR AND GROUND
1. Disconnect intake sensor connector.
2. Turn ignition switch ON.
3. Check voltage between intake sensor harness connector M68 (Gasoline engine) or M69 (Diesel engine)
terminal 1 (BR/Y) and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 4.
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1 – Ground : Approx. 5V
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ATC-118
TROUBLE DIAGNOSIS

2. CHECK CIRCUIT CONTINUITY BETWEEN INTAKE SENSOR AND AUTO AMP.
1. Turn ignition switch OFF.
2. Disconnect auto amp. connector.
3. Check continuity between intake sensor harness connector M68 (Gasoline engine) or M69 (Diesel
engine) terminal 2 (B/Y) and auto amp. harness connector M53 terminal 24 (B/Y).
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK INTAKE SENSOR
Refer to AT C - 11 9 , "
Intake Sensor" .
OK or NG
OK >> 1. Replace auto amp.
2. Go to self-diagnosis AT C - 5 9 , "
FUNCTION CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-2.
NG >> 1. Replace intake sensor.
2. Go to self-diagnosis AT C - 5 9 , "
FUNCTION CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-2. 2 – 24 : Continuity should exist.
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TROUBLE DIAGNOSIS
ATC-119
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AT C

4. CHECK CIRCUIT CONTINUITY BETWEEN INTAKE SENSOR AND AUTO AMP.
1. Turn ignition switch OFF.
2. Disconnect auto amp. connector.
3. Check continuity between intake sensor harness connector M68 (Gasoline engine) or M69 (Diesel
engine) terminal 1 (BR/Y) and auto amp. harness connector M53 terminal 25 (BR/Y).
OK or NG
OK >> 1. Replace auto amp.
2. Go to self-diagnosis AT C - 5 9 , "
FUNCTION CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-2.
NG >> Repair harness or connector.
COMPONENT INSPECTION
Intake Sensor
After disconnecting intake sensor connector M68 (Gasoline engine)
or M69 (Diesel engine), measure resistance between terminals 1
and 2 at sensor side, using the table below.
If NG, replace intake sensor.1 – 25 : Continuity should exist.
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Temperature °C (°F)Resistance kΩ
With gasoline engine With diesel engine
−15 (5) 12.34 18.63
−10 (14) 9.62 14.15
−5 (23) 7.56 10.86
0 (32) 6.00 8.41
5 (41) 4.80 6.58
10 (50) 3.87 5.19
15 (59) 3.15 4.12
20 (68) 2.57 3.30
25 (77) 2.12 2.67
30 (86) 1.76 2.17
35 (95) 1.47 1.78
40 (104) 1.23 1.46
45 (113) 1.04 1.21
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ATC-120
CONTROLLER

CONTROLLERPFP:27500
Removal and InstallationEJS004GD
REMOVAL
1. Remove cluster lid C. Refer to IP-11, "Removal and Installation" .
2. Remove fixing screws, and then remove controller.
INSTALLATION
Installation is basically the reverse order of removal.
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AMBIENT SENSOR
ATC-121
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AMBIENT SENSORPFP:27722
Removal and InstallationEJS004GA
REMOVAL
1. Remove front grille. Refer to EI-19, "FRONT GRILLE" .
2. Disconnect ambient sensor connector, and then remove ambi-
ent sensor.
INSTALLATION
Installation is basically the reverse order of removal.
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ATC-122
IN-VEHICLE SENSOR

IN-VEHICLE SENSORPFP:27720
Removal and InstallationEJS004GB
REMOVAL
1. Remove instrument driver lower panel. Refer to IP-11, "Removal and Installation" .
2. Remove mounting screw, and then remove in-vehicle sensor.
INSTALLATION
Installation is basically the reverse order of removal.
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SUNLOAD SENSOR
ATC-123
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SUNLOAD SENSORPFP:27721
Removal and InstallationEJS004GC
REMOVAL
1. Remove sunload sensor garnish.
2. Disconnect sunload sensor connector, and then remove sunload
sensor.
INSTALLATION
Installation is basically the reverse order of removal.
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ATC-124
INTAKE SENSOR

INTAKE SENSORPFP:27723
Removal and InstallationEJS004GI
REMOVAL
1. Remove evaporator. Refer to ATC-158, "Removal and Installation of Evaporator" .
2. Remove intake sensor.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings for A/C piping with new ones. Before installing, apply compressor oil to them.

Make sure mounting position of intake sensor bracket.

When recharging refrigerant, check for leaks.
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