2007 NISSAN TIIDA Service Repair Manual

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Page 3513 of 5883

NISSAN TIIDA 2007 Service Repair Manual HAC-180
< ECU DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
PTC HEATER CONTROL SYSTEM
PTC HEATER (1500 WATT) : Wiring Diagram - PTC Heater (1500 Watt) -
INFOID:0000000001683833
ALIWA0042GB

Page 3514 of 5883

NISSAN TIIDA 2007 Service Repair Manual PTC HEATER CONTROL SYSTEM
HAC-181
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ALIIA0141GB

Page 3515 of 5883

NISSAN TIIDA 2007 Service Repair Manual HAC-182
< ECU DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
PTC HEATER CONTROL SYSTEM
ALIIA0142GB

Page 3516 of 5883

NISSAN TIIDA 2007 Service Repair Manual PTC HEATER CONTROL SYSTEM
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Page 3517 of 5883

NISSAN TIIDA 2007 Service Repair Manual HAC-184
< SYMPTOM DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
AIR CONDITIONER CONTROL
SYMPTOM DIAGNOSIS
AIR CONDITIONER CONTROL
Symptom Matrix ChartINFOID:0000000001547451
SYMPTOM TABLE
Symptom Refer

Page 3518 of 5883

NISSAN TIIDA 2007 Service Repair Manual INSUFFICIENT COOLING
HAC-185
< SYMPTOM DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
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INSUFFICIENT COOLING
Component Function CheckINFOID:0000000001547452
SYMPTOM: Insuf

INSUFFICIENT COOLING
HAC-185
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INSUFFICIENT COOLING
Component Function CheckINFOID:0000000001547452
SYMPTOM: Insufficient cooling
INSPECTION FLOW
1.CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - TEMPERATURE DECREASE
1. Press the AUTO switch.
2. Turn temperature control dial (driver) counterclockwise until 16° C (60° F) is displayed.
3. Check for cold air at discharge air outlets.
Can the symptom be duplicated?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK FOR ANY SYMPTOMS
Perform a complete operational check for any symptoms. Refer to HAC-87, "
Operational Check".
Does another symptom exist?
YES >> Refer to HAC-184, "SymptomMatrixChart".
NO >> System OK.
3.CHECK FOR SERVICE BULLETINS
Check for any service bulletins.
>> GO TO 3.
4.PERFORM SELF-DIAGNOSIS
Perform self-diagnosis Refer to HAC-98, "
Front Air Control Self-Diagnosis".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Refer to HAC-104, "
A/C System Self-Diagnosis Code Chart".
5.CHECK DRIVE BELTS
Check compressor belt tension. Refer to XX-XX, "*****"
.
Is the inspection result normal?
OK >> GO TO 6.
NG >> Adjust or replace compressor belt. Refer to XX-XX, "*****"
.
6.CHECK AIR MIX DOOR OPERATION
Check and verify air mix door mechanism for smooth operation. Refer to XX-XX, "*****"
Does air mix door operate correctly?
YES >> GO TO 7.
NO >> Check air mix door motor circuit. Refer to HAC-112, "
Air Mix Door Motor Diagnosis Procedure" or
XX-XX, "*****"
.
7.CHECK COOLING FAN MOTOR OPERATION
Check and verify cooling fan motor for smooth operation. Refer to XX-XX, "*****"
.
Does cooling fan motor operate correctly?
YES >> GO TO 8.
NO >> Check cooling fan motor. Refer to XX-XX, "*****"
.
8.CHECK RECOVERY/RECYCLING EQUIPMENT BEFORE USAGE
Check recovery/recycling equipment before connecting to vehicle. Verify there is no pressure in the recovery/
recycling equipment by checking the gauges. If pressure exists, recover refrigerant from equipment lines.
>> GO TO 9.

Page 3519 of 5883

NISSAN TIIDA 2007 Service Repair Manual HAC-186
< SYMPTOM DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
INSUFFICIENT COOLING
9.CHECK REFRIGERANT PURITY
1. Connect recovery/recycling equipment to vehicle.
2. Confirm refrigerant purity in supp

Page 3520 of 5883

NISSAN TIIDA 2007 Service Repair Manual INSUFFICIENT COOLING
HAC-187
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*1 "PERFORMANCE CHART" *2 "PERFORMANCE CHART" *3 "TROUBLE DIAGNOSIS FOR UN-
USUAL P

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