2008 NISSAN TEANA Service Manual

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Page 2713 of 5121

NISSAN TEANA 2008 Service Manual A/C AUTO AMP.
HAC-85
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DTC Inspection Priority ChartINFOID:0000000003846377
If some DTCs are displayed at the same time, perfor

Page 2714 of 5121

NISSAN TEANA 2008 Service Manual HAC-86
< ECU DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
A/C AUTO AMP.
*: Perform self-diagnosis under sunshine. When performing indoors, aim a light (more than 60 W) at sunload sensor, otherwise self-diag-
n

Page 2715 of 5121

NISSAN TEANA 2008 Service Manual AIR CONDITIONER CONTROL
HAC-87
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SYMPTOM DIAGNOSIS
AIR CONDITIONER CONTROL
Diagnosis Chart By SymptomINFOID:000000000384638

Page 2716 of 5121

NISSAN TEANA 2008 Service Manual HAC-88
< SYMPTOM DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
INSUFFICIENT COOLING
INSUFFICIENT COOLING
DescriptionINFOID:0000000003846386
Symptom
Insufficient cooling
No cool air comes out. (Air flow volu

HAC-88
< SYMPTOM DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
INSUFFICIENT COOLING
INSUFFICIENT COOLING
DescriptionINFOID:0000000003846386
Symptom
Insufficient cooling
No cool air comes out. (Air flow volume is normal.)
Inspection procedureINFOID:0000000003846387
1.CHECK WITH A GAUGE OF RECOVERY/RECYCLING RECHARGING EQUIPMENT
Connect the recovery/recycling recharging equipment to the vehicle and perform the pressure inspection with
the gauge.
Is there refrigerant?
YES >> GO TO 2.
NO-1 >> Check for refrigerant leakages with the refrigerant leakage detecting fluorescent leak detector.
Refer to HA-32, "
Inspection".
NO-2 >> GO TO 2 after repairing or replacing the parts according to the inspection results.
2.CHECK CHARGED REFRIGERANT AMOUNT
1. Connect recovery/recycling recharging equipment to the vehicle and discharge the refrigerant.
2. Recharge with the proper amount of refrigerant and perform the inspection with the refrigerant leakage
detecting fluorescent leak detector. Refer to HA-32, "
Inspection".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Refill the refrigerant and repair or replace the parts according to the inspection results.
3.CHECK REFRIGERANT CYCLE PRESSURE
Connect recovery/recycling recharging equipment to the vehicle and perform the performance test. Refer to
HA-30, "
Performance Chart".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Perform the diagnosis with the gauge pressure. Refer to HA-8, "
Trouble Diagnosis For Unusual
Pressure".
4.CHECK SETTING OF TEMPERATURE SETTING TRIMMER
Using CONSULT-III, check the setting of “TEMP SET CORRECT” on “WORK SUPPORT” of HVAC. Refer to
HAC-10, "
Temperature Setting Trimmer".
1. Check that the temperature setting trimmer is set to “+ direction”.
NOTE:
The control temperature can be set with the setting of the temperature setting trimmer.
2. Set temperature control switch to “0”.
Are the malfunction solved?
YES >> Perform the setting separately if necessary. END.
NO >> GO TO 5.
5.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III
1. Using CONSULT-III, perform “SELF-DIAGNOSIS RESULTS” of HVAC.
2. Check if any DTC is displayed in the trouble diagnosis results.
NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to
HAC-42, "
DTC Logic" or HAC-43, "DTC Logic".
Is any DTC displayed?
YES >> Perform the diagnosis that is applicable to the sensor and the door motor. Refer to HAC-85, "DTC
Index".
NO >> GO TO 6.
6.CHECK WITH ACTIVE TEST OF CONSULT-III

Page 2717 of 5121

NISSAN TEANA 2008 Service Manual INSUFFICIENT COOLING
HAC-89
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1. Using CONSULT-III, perform “HVAC TEST” “ACTIVE TEST” of HVAC to check each output

Page 2718 of 5121

NISSAN TEANA 2008 Service Manual HAC-90
< SYMPTOM DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
INSUFFICIENT COOLING
8.CHECK AIR LEAKAGE FROM DUCT
Check duct and nozzle, etc, of the A/C system for air leakage.
Is the inspection result normal?

Page 2719 of 5121

NISSAN TEANA 2008 Service Manual INSUFFICIENT HEATING
HAC-91
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INSUFFICIENT HEATING
DescriptionINFOID:0000000003846388
Symptom
Insufficient heating
No w

INSUFFICIENT HEATING
HAC-91
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INSUFFICIENT HEATING
DescriptionINFOID:0000000003846388
Symptom
Insufficient heating
No warm air comes out. (Air flow volume is normal.)
Inspection procedureINFOID:0000000003846389
1.CHECK COOLING SYSTEM
1. Check engine coolant level and check for leakage. Refer to CO-8, "
Inspection".
2. Check radiator cap. Refer to CO-12, "
RADIATOR CAP : Inspection".
3. Check water flow sounds of engine coolant. Refer to CO-9, "
Refilling".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Refill the engine coolant and repair or replace the parts according to the inspection results.
2.CHECK OPERATION
1. Press temperature control switch (driver side) and raise temperature setting to 32°C (90°F) after warming
up the engine.
2. Check that warm air blows from the outlets.
Is the inspection result normal?
YES >> END.
NO >> GO TO 3.
3.CHECK SETTING OF TEMPERATURE SETTING TRIMMER
Using CONSULT-III, check the setting of “TEMP SET CORRECT” on “WORK SUPPORT” of HVAC. Refer to
HAC-10, "
Temperature Setting Trimmer".
1. Check that the temperature setting trimmer is set to “− direction”.
NOTE:
The control temperature can be set by the temperature setting trimmer.
2. Set temperature control switch to “0”.
Are the malfunction solved?
YES >> Perform the setting separately if necessary. END.
NO >> GO TO 4.
4.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III
1. Using CONSULT-III, perform “SELF-DIAGNOSIS RESULTS” of HVAC.
2. Check if any DTC is displayed in the trouble diagnosis results.
NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to
HAC-42, "
DTC Logic" or HAC-43, "DTC Logic".
Is any DTC displayed?
YES >> Perform the diagnosis that is applicable to the sensor and the door motor. Refer to HAC-85, "DTC
Index".
NO >> GO TO 5.
5.CHECK WITH ACTIVE TEST OF CONSULT-III
1. Using CONSULT-III, perform “HVAC TEST” in “ACTIVE TEST” of HVAC to check each output device.
Refer to HAC-38, "
CONSULT-III Function".
NOTE:
Perform the ACTIVE TEST after starting the engine because the compressor is operated.
2. Refer to the table and check the outlet, inlet, air flow temperature, blower motor control signal, magnet
clutch operation, and air mix ratio. Visually check each operating condition, by listening for noise, touching
air outlets with a hand, etc.

Page 2720 of 5121

NISSAN TEANA 2008 Service Manual HAC-92
< SYMPTOM DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
INSUFFICIENT HEATING
NOTE:
Perform the inspection of each output device after starting the engine because the compressor is oper-
ated.
When ch

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