2007 NISSAN TIIDA Service Repair Manual

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Page 3401 of 5883

NISSAN TIIDA 2007 Service Repair Manual HAC-68
< ECU DIAGNOSIS >[MANUAL AIR CONDITIONER]
PTC HEATER CONTROL SYSTEM
PTC HEATER (1500 WATT) : Wiring Diagram - PTC Heater (1500 Watt) -
INFOID:0000000001678415
ALIWA0042GB

Page 3402 of 5883

NISSAN TIIDA 2007 Service Repair Manual PTC HEATER CONTROL SYSTEM
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ALIIA0141GB

Page 3403 of 5883

NISSAN TIIDA 2007 Service Repair Manual HAC-70
< ECU DIAGNOSIS >[MANUAL AIR CONDITIONER]
PTC HEATER CONTROL SYSTEM
ALIIA0142GB

Page 3404 of 5883

NISSAN TIIDA 2007 Service Repair Manual PTC HEATER CONTROL SYSTEM
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Page 3405 of 5883

NISSAN TIIDA 2007 Service Repair Manual HAC-72
< SYMPTOM DIAGNOSIS >[MANUAL AIR CONDITIONER]
AIR CONDITIONER CONTROL
SYMPTOM DIAGNOSIS
AIR CONDITIONER CONTROL
Symptom Matrix ChartINFOID:0000000001203074
SYMPTOM TABLE
Symptom Reference Page

Page 3406 of 5883

NISSAN TIIDA 2007 Service Repair Manual INSUFFICIENT COOLING
HAC-73
< SYMPTOM DIAGNOSIS >[MANUAL AIR CONDITIONER]
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INSUFFICIENT COOLING
Component Function CheckINFOID:0000000001547073
SYMPTOM: Insufficient co

INSUFFICIENT COOLING
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INSUFFICIENT COOLING
Component Function CheckINFOID:0000000001547073
SYMPTOM: Insufficient cooling
INSPECTION FLOW
1.CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - TEMPERATURE DECREASE
1. Turn temperature control dial counterclockwise to maximum cold position.
2. 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-6, "
Operational Check".
Does another symptom exist?
YES >> Refer to HAC-5, "How to Perform Trouble Diagnosis For Quick and Accurate Repair".
NO >> System OK.
3.CHECK FOR SERVICE BULLETINS
Check for any service bulletins.
>> GO TO 4.
4.CHECK COMPRESSOR DRIVE BELT TENSION
Check compressor belt tension. Refer to EM-15, "
Checking" (HR16DE) or EM-142, "Checking Drive Belts"
(MR18DE), or EM-263, "Inspection and Adjustment" (K9K).
OK or NG
OK >> GO TO 5.
NG >> Adjust or replace compressor belt. Refer to EM-15, "
Checking" (HR16DE) or EM-142, "Checking
Drive Belts" (MR18DE), or EM-263, "Inspection and Adjustment" (K9K)
5.CHECK AIR MIX DOOR CABLE
Check and verify air mix door cable operation. Refer to XXXX AIR MIX DOOR CABLE ADJUST.
Does air mix door operate correctly?
YES >> GO TO 6.
NO >> Repair or replace as necessary.
6.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 7.
NO >> Check cooling fan motor. Refer to XX-XX, "*****".
7.CHECK FOR EVAPORATOR FREEZE UP
Start engine and run A/C. Check for evaporator freeze up.
Does evaporator freeze up?
YES >> Perform performance test diagnoses. Refer to "PERFORMANCE TEST DIAGNOSIS".
NO >> GO TO 8.
8.CHECK REFRIGERANT PRESSURE
Check refrigerant pressure with manifold gauge connected. Refer to "Test Reading".
OK or NG
OK >> GO TO 9.
NG >> Perform performance test diagnoses. Refer to "PERFORMANCE TEST DIAGNOSIS".

Page 3407 of 5883

NISSAN TIIDA 2007 Service Repair Manual HAC-74
< SYMPTOM DIAGNOSIS >[MANUAL AIR CONDITIONER]
INSUFFICIENT COOLING
9.CHECK AIR DUCTS
Check ducts for air leaks.
OK or NG
OK >> If the symptom still exists, perform a complete operational check.

Page 3408 of 5883

NISSAN TIIDA 2007 Service Repair Manual INSUFFICIENT COOLING
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Performance ChartINFOID:0000000001547075
PERFORMANCE CHART
Test Condition
*1 "PERFORMANCE CHA

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