2007 NISSAN TIIDA Service Repair Manual

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Page 3609 of 5883

NISSAN TIIDA 2007 Service Repair Manual HAC-276
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
PTC HEATER CONTROL SYSTEM
If NG, replace ambient sensor. Refer to XX.

Page 3610 of 5883

NISSAN TIIDA 2007 Service Repair Manual POWER SUPPLY AND GROUND CIRCUIT FOR CONTROLLER
HAC-277
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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POWER SUPPLY AND GROUND CIRCUIT FOR CONTROLLER
Component

POWER SUPPLY AND GROUND CIRCUIT FOR CONTROLLER
HAC-277
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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POWER SUPPLY AND GROUND CIRCUIT FOR CONTROLLER
Component DescriptionINFOID:0000000001547368
COMPONENT DESCRIPTION
Front air control
The front air control has a built-in microcomputer which processes information sent from various sensors
needed for air conditioner operation. The air mix door motor, mode door motor, intake door motor, blower
motor and compressor are then controlled.
The front air control is unitized with control mechanisms. Signal from various switches and Potentio Tempera-
ture Control (PTC) are directly entered into front air control
Self-diagnostic functions are also built into front air control to provide quick check of malfunctions in the auto
air conditioner system.
Potentio Temperature Control (PTC)
The PTC is built into the front air control It can be set at an interval of
1°C (34°F) in the 18°C (64°F) to 32°C (90°F) temperature range by
turning temperature control switch. The set temperature is displayed.
A/C Auto Amp. Component Function CheckINFOID:0000000001547369
SYMPTOM: A/C system does not come on.
INSPECTION FLOW
1.CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - AUTO MODE
1. Rotate the mode dial to the AUTO position.
2. Display should indicate AUTO. Confirm that the compressor clutch engages (sound or visual inspection).
(Discharge air and blower speed will depend on ambient, in-vehicle and set temperatures.)
Can a symptom be duplicated?
YES >> GO TO 3.
NO >> GO TO 2.
2.PERFORM COMPLETE OPERATIONAL CHECK
Perform a complete operational check and check for any symptoms. Refer to HAC-202, "
Operational Check".
Can a symptom be duplicated?
YES >> Refer to HAC-201, "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 POWER AND GROUND CIRCUIT
Check main power supply and ground circuit. Refer to HAC-278, "
A/C Auto Amp Power and Ground Diagnosis
Procedure".
Is the inspection result normal?
YES >> System OK.
NO >> Replace Front air control. Refer to XXXX.
SJIA0876E

Page 3611 of 5883

NISSAN TIIDA 2007 Service Repair Manual HAC-278
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
POWER SUPPLY AND GROUND CIRCUIT FOR CONTROLLER
A/C Auto Amp Power and Ground Diagnosis Procedure
INFOID:0000000001547370
DIAGNOSTIC PROCE

Page 3612 of 5883

NISSAN TIIDA 2007 Service Repair Manual AIR CONDITIONER CONTROL
HAC-279
< ECU DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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ECU DIAGNOSIS
AIR CONDITIONER CONTROL
Front Air Control Terminals Reference ValuesINFO

Page 3613 of 5883

NISSAN TIIDA 2007 Service Repair Manual HAC-280
< ECU DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
AIR CONDITIONER CONTROL
16 GR Illumination signal ON Light switch: ON Approx. 12
18 O Power supply for IGN 1 ON - Battery voltage
19 LG Power s

Page 3614 of 5883

NISSAN TIIDA 2007 Service Repair Manual AIR CONDITIONER CONTROL
HAC-281
< ECU DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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Wiring Diagram - Air Conditioner Control -INFOID:0000000001547372
ALIWA0038GB

Page 3615 of 5883

NISSAN TIIDA 2007 Service Repair Manual HAC-282
< ECU DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
AIR CONDITIONER CONTROL
ALIWA0039GB

Page 3616 of 5883

NISSAN TIIDA 2007 Service Repair Manual AIR CONDITIONER CONTROL
HAC-283
< ECU DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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ALIIA0154GB

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