sensor 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-
nosis indicates even though the sunload sensor is functioning normally.B2635 PASS AIRMIX ACTR (OPEN)HAC-58, "
DTC Logic"
B2636 DR VENT DOOR FAILHAC-60, "DTC Logic"
B2637 DR B/L DOOR FAILHAC-60, "DTC Logic"
B2638 DR D/F1 DOOR FAILHAC-60, "DTC Logic"
B2639 DR DEF DOOR FAILHAC-60, "DTC Logic"
B263D FRE DOOR FAILHAC-63, "DTC Logic"
B263E 20P FRE DOOR FAILHAC-63, "DTC Logic"
B263F REC DOOR FAILHAC-63, "DTC Logic"
B2654 D/F2 DOOR FAILHAC-60, "DTC Logic"
B2655 B/L2 DOOR FAILHAC-60, "DTC Logic"
B2656 BTC FRE DOOR FAILHAC-63, "DTC Logic"
DTCItems
(CONSULT-III screen terms)Reference

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

INSUFFICIENT HEATING
HAC-91
< SYMPTOM DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
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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.

PRECAUTIONS
HAC-99
< PRECAUTION >[WITHOUT 7 INCH DISPLAY]
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 Explain that recovery of the contaminated refrigerant could damage service equipment and refrigerant sup-
ply.
 Suggest the customer return the vehicle to the location of previous service where the contamination may
have occurred.
 If repairing, recover the refrigerant using only dedicated equipment and containers. Never reintroduce
contaminated refrigerant into the existing service equipment. Contact a local refrigerant product retailer
for available service if the facility does not have dedicated recovery equipment. This refrigerant must be dis-
posed of in accordance with all federal and local regulations. In addition, replacement of all refrigerant sys-
tem components on the vehicle is recommended.
 The air conditioner warranty is void if the vehicle is within the warranty period. Please contact Nissan Cus-
tomer Affairs for further assistance.
General Refrigerant PrecautionINFOID:0000000003846400
WARNING:
 Never breath A/C refrigerant, lubricant vapor or mist. Exposure may irritate eyes, nose and throat.
Remove HFC-134a (R-134a) from the A/C system, using certified service equipment meeting require-
ments of SAE J-2210 [HFC-134a (R-134a) recycling equipment], or J-2209 [HFC-134a (R-134a) recov-
ery equipment]. Ventilate work area before resuming service if accidental system discharge occurs.
Additional health and safety information may be obtained from refrigerant and lubricant manufactur-
ers.
 Never release refrigerant into the air. Use approved recovery/recycling equipment to capture the
refrigerant each time an air conditioning system is discharged.
 Always wear eye and hand protection (goggles and gloves) when working with any refrigerant or air
conditioning system.
 Never store or heat refrigerant containers above 52°C (126°F).
 Never heat a refrigerant container with an open flame. Place the bottom of the container in a warm
pail of water if container warming is required.
 Never intentionally drop, puncture, or incinerate refrigerant containers.
 Keep refrigerant away from open flames. Poisonous gas is produced if refrigerant burns.
 Refrigerant displaces oxygen, therefore be certain to work in well ventilated areas to prevent suffo-
cation.
 Never pressure test or leakage test HFC-134a (R-134a) service equipment and/or vehicle air condi-
tioning systems with compressed air during repair. Some mixtures of air and HFC-134a (R-134a)
have been shown to be combustible at elevated pressures. These mixtures, if ignited, may cause
injury or property damage. Additional health and safety information may be obtained from refriger-
ant manufacturers.
Refrigerant ConnectionINFOID:0000000003846401
A new type refrigerant connection has been introduced to all refrigerant lines except the following location.
 Expansion valve to evaporator
 Refrigerant pressure sensor to liquid tank
O-RING AND REFRIGERANT CONNECTION

HAC-100
< PRECAUTION >[WITHOUT 7 INCH DISPLAY]
PRECAUTIONS
CAUTION:
The new and former refrigerant connections use different O-ring configurations. Never confuse O-
rings since they are not interchangeable. Refrigerant may leak at the connection if a wrong O-ring is
installed.
O-Ring Part Numbers and Specifications
F. Former type refrigerant connection N. New type refrigerant connection
:O-ring size
JPIIA0453ZZ
Connection type Piping connection point Part number QTY O-ring size
NewLow-pressure flexible hose to low-pressure pipe 92474 N8210 1 19
High-pressure pipe to condenser pipe assembly (Outlet) 92471 N8210 1 8
Condenser pipe assembly (Inlet) to high-pressure flexible
hose (One-touch joint)92472 N8210 1 12
Condenser assembly to condenser pipe as-
semblyInlet 92472 N8210 1 12
Outlet 92471 N8210 1 8
Low-pressure pipe to expansion valve 92473 N8210 1 16
High-pressure pipe to expansion valve 92471 N8210 1 8
Compressor to low-pressure flexible hose 92474 N8210 1 19
Compressor to high-pressure flexible hose 92472 N8210 1 12
Liquid tank to condenser assemblyInlet
92471 N82101
8
Outlet 1
FormerRefrigerant pressure sensor to liquid tank J2476 89956 1 10
Expansion valve to evaporator pipe assemblyInlet 92475 71L00 1 12
Outlet 92475 72L00 1 16
Evaporator to evaporator pipe assemblyInlet 92475 71L00 1 12
Outlet 92475 72L00 1 16

HAC-116
< BASIC INSPECTION >[WITH 7 INCH DISPLAY]
INSPECTION AND ADJUSTMENT
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of the intake switch memory function may be cancelled.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Gas Sensor Sensitivity Adjust-
ment Function (With Intelligent Air Conditioner System)
INFOID:0000000003884691
DESCRIPTION
According to customer’s sense of smell, gas sensor sensitivity can be changed.
HOW TO SET
Using CONSULT-III, perform “GAS SENSOR ADJUSTMENT” on “WORK SUPPORT” of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of the intake switch memory function may be cancelled.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Clean Switch Interlocking Move-
ment Change Function (With Intelligent Air Conditioner System)
INFOID:0000000003884692
DESCRIPTION
Condition for interlocking movement of clean switch and A/C switch can be changed. In addition operation of
the clean switch, which activates the automatic re-circulation control system, can be set to become available
when the A/C switch is ON.
HOW TO SET
Using CONSULT-III, perform “CLEAN SW SET” on “WORK SUPPORT” of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of the intake switch memory function may be cancelled.
Work support items Display Setting
GAS SENSOR ADJUSTMENT2 Less sensitive setting than display 1 (REC later than display 1.)
1 Less sensitive setting than normal setting (REC later than normal operation.)
0 (initial status) Normal
−1 More sensitive setting than normal setting (REC earlier than normal operation.)
−2 More sensitive setting than display −1 (REC earlier than display −1.)
Work support items Display setting
CLEAN SW SETMODE 1 Initial setting
MODE 2 Setting 1
MODE 3 Setting 2
MODE 4 Setting 3
Initial settingWhen the clean switch is ON, the A/C switch is also turned ON in synchronization with the clean switch.
Control of the clean switch is functional even when the A/C switch is turned OFF.
Setting 1When the clean switch is ON, the A/C switch is not turned ON in synchronization with the clean switch.
Control of the clean switch is functional even when the A/C switch is turned OFF.
Setting 2When the clean switch is ON, the A/C switch is also turned ON in synchronization with the clean switch.
When the A/C switch is turned OFF, the clean switch is turned OFF in synchronization with the A/C switch.
Setting 3Clean switch can be turned ON only when A/C switch is ON.
When the A/C switch is turned OFF, the clean switch is turned OFF in synchronization with the A/C switch.

COMPRESSOR CONTROL FUNCTION
HAC-119
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
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PASSENGER COMPARTMENT
1. Refrigerant pressure sensor 2. Compressor (magnet clutch) 3. Ambient sensor
JPIIA0992ZZ

HAC-120
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
COMPRESSOR CONTROL FUNCTION
Component’s Role
INFOID:0000000003884695
1. Intake door motor 2. Air mix door motor (passenger side) 3. Air mix door motor (driver side)
4. Mode door motor 5. Sunload sensor 6. In-vehicle sensor
7. A/C auto amp. 8. Intake sensor 9. Blower motor
JPIIA0993ZZ

COMPRESSOR CONTROL FUNCTION
HAC-121
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
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Component Description
Refrigerant pressure sensorEC-348, "
Description"
CompressorHAC-197, "Description"
Ambient sensorHAC-166, "Description"
Intake door motorHAC-188, "Description"
Air mix door motor (driver side)HAC-181, "Description"
Air mix door motor (passenger side)HAC-183, "Description"
Mode door motorHAC-185, "Description"
Sunload sensorHAC-178, "Description"
In-vehicle sensorHAC-169, "Description"
A/C auto amp. HAC-192, "Description"
Intake sensorHAC-172, "Description"
Blower motorHAC-193, "Description"

HAC-122
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
AUTOMATIC AIR CONDITIONER SYSTEM
AUTOMATIC AIR CONDITIONER SYSTEM
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : System Diagram
INFOID:0000000003884702
CONTROL SYSTEM
The control system consists of input sensors, switches, the A/C auto amp. (microcomputer) and outputs. The
relationship of these components is as shown in the figure below:
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : System Description
INFOID:0000000003884704
CONTROL OPERATION
Display
The operation status of the system is displayed on the screen.
JPIIA1020GB
JSIIA0058GB