Nissan X-Trail 32. Manual — part 1411
AUTOMATIC AIR CONDITIONER SYSTEM
HAC-119
< SYMPTOM DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
• Insufficient cooling
• No cool air comes out. (Air flow volume is normal.)
• Magnet clutch control system
• Drive belt slipping
• Cooler cycle
• ECV (Electrical control valve)
• Air leakage from each duct
• Temperature setting trimmer
HAC-120, "Diagnosis Procedure"
• Insufficient heating
• No warm air comes out. (Air flow volume is normal.)
• Engine cooling system
• Heater hose
• Heater core
• Air leakage from each duct
• PTC heater system (with PTC heat-
er)
• Temperature setting trimmer
HAC-122, "Diagnosis Procedure"
Noise is heard
when the air
conditioning op-
erates.
During compressor operation
Cooler cycle
Symptom table for noise
•
engine models except for Russia)
•
(MR20DD engine models)
•
(QR25DE engine models)
•
engine models for Russia)
During blower motor operation
• Mixing any foreign object in blower
motor
• Blower motor fan breakage
• Blower motor rotation inferiority
Check blower motor.
HAC-109, "Component Inspection
(Blower Motor)"
Symptom
Corresponding malfunction part
Check item/Reference
HAC-120
< SYMPTOM DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
INSUFFICIENT COOLING
INSUFFICIENT COOLING
Description
INFOID:0000000010939776
Symptom
• Insufficient cooling
• No cool air comes out. (Air flow volume is normal.)
Diagnosis Procedure
INFOID:0000000010939777
NOTE:
Perform self-diagnoses with CONSULT before performing symptom diagnosis. If any DTC is detected, per-
form the corresponding diagnosis.
1.
CHECK MAGNET CLUTCH OPERATION
1.
Turn ignition switch ON.
2.
Push fan switch and operate blower fan.
3.
Press A/C switch.
4.
Check that A/C indicator turns ON. Check visually and by sound that compressor operates.
5.
Press A/C switch again.
6.
Check that A/C indicator turns OFF. Check that compressor stops.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Perform diagnosis of “COMPRESSOR DOES NOT OPERATE” in “SYMPTOM DIAGNOSIS”.
HAC-124, "Diagnosis Procedure"
2.
CHECK DRIVE BELT
Check tension of drive belt. Refer to
(MR20DD engine models),
(QR25DE engine models) or
(R9M engine models).
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Adjust or replace drive belt depending on the inspection results.
3.
CHECK REFRIGERANT CYCLE PRESSURE
Connect recovery/recycling recharging equipment to the vehicle and perform pressure inspection with gauge.
Refer to
(M9R engine models except for Russia),
(MR20DD engine models),
(QR25DE engine models) or
(R9M engine models for Russia).
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace parts depending on the inspection results.
4.
CHECK ECV
Perform ECV circuit diagnosis. Refer to
HAC-113, "Diagnosis Procedure"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace parts depending on the inspection results.
5.
CHECK AIR LEAKAGE FROM EACH DUCT
Check duct and nozzle, etc. of the air conditioning system for leakage.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace parts depending on the inspection results.
6.
CHECK SETTING OF TEMPERATURE SETTING TRIMMER
1.
Check setting value of temperature setting trimmer. Refer to
HAC-74, "Temperature Setting Trimmer"
.
2.
Check that temperature setting trimmer is set to “+ direction”.
NOTE:
INSUFFICIENT COOLING
HAC-121
< SYMPTOM DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
The control temperature can be set with the setting of the temperature setting trimmer.
3.
Set difference between the set temperature and control temperature to “0”.
Is inspection result normal?
YES
>> INSPECTION END
NO
>> Replace A/C auto amp. Refer to
HAC-126, "Removal and Installation"
.
HAC-122
< SYMPTOM DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
INSUFFICIENT HEATING
INSUFFICIENT HEATING
Description
INFOID:0000000010939778
Symptom
• Insufficient heating
• No warm air comes out. (Air flow volume is normal.)
Diagnosis Procedure
INFOID:0000000010939779
NOTE:
Perform self-diagnoses with CONSULT before performing symptom diagnosis. If any DTC is detected, per-
form the corresponding diagnosis.
1.
CHECK COOLING SYSTEM
1.
Check engine coolant level and check for leakage. Refer to
(MR20DD engine mod-
els),
(QR25DE engine models) or
(R9M engine models).
2.
Check radiator cap or reservoir tank cap. Refer to
CO-16, "RADIATOR CAP : Inspection"
(MR20DD
CO-42, "RADIATOR CAP : Inspection"
(QR25DE engine models) or
(R9M engine models).
3.
Check water flow sounds of the engine coolant. Refer to
(MR20DD engine models),
(QR25DE engine models) or
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Refill engine coolant and repair or replace the parts depending on the inspection results.
2.
CHECK HEATER HOSE
Check installation of heater hose by visually or touching.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace parts depending on the inspection results.
3.
CHECK HEATER CORE
1.
Check temperature of inlet hose and outlet hose of heater core.
2.
Check that inlet side of heater core is hot and the outlet side is slightly lower than/almost equal to the inlet
side.
CAUTION:
Always perform the temperature inspection in a short period of time because the engine coolant
temperature is very hot.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace heater core. Refer to
HA-46, "HEATER CORE : Removal and Installation"
(R9M engine
models except for Russia),
HA-91, "HEATER CORE : Removal and Installation"
models),
HA-136, "HEATER CORE : Removal and Installation"
(QR25DE engine models) or
182, "HEATER CORE : Removal and Installation"
(R9M engine models for Russia).
4.
CHECK AIR LEAKAGE FROM EACH DUCT
Check duct and nozzle, etc. of the air conditioning system for air leakage.
Is the inspection result normal?
YES-1 >> With PTC heater: GO TO 5.
YES-2 >> Without PTC heater: GO TO 6.
NO
>> Repair or replace parts depending on the inspection results.
5.
CHECK PTC HEATER
Perform PTC heater diagnosis. Refer to
HAC-115, "Diagnosis Procedure"
.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace parts depending on the inspection results.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст