2009 NISSAN TIIDA compressor

Maintenance of Oil Quantity in Compressor " .
• Keep friction surfaces between clut ch and pulley clean. If the surface is contaminated, with oil, wipe
it off by using a clean waste cloth moistened with thinner.
• After compressor service operation, turn the compresso r shaft by hand more than five turns in both
directions. This will equally dist ribute oil inside the compressor. After the compressor is installed,
let the engine idle and operat e the compressor for one hour.
• After replacing the compressor magnet clutch, ap ply voltage to the new one and check for usual
operation.
Precaution for Service Equipment INFOID:0000000004307048
RECOVERY/RECYCLING EQUIPMENT
Be certain to follow the manufacturer’s instructions for machine operation and machine maintenance. Never
introduce any refrigerant other than that specified into the machine.
ELECTRONIC LEAK DETECTOR
Be certain to follow the manufacturer’s instruct ions for tester operation and tester maintenance.
VACUUM PUMP
The oil contained inside the vacuum pump is not compatible with the
specified oil for HFC-134a (R-134a) A/C systems. The vent side of
the vacuum pump is exposed to atmospheric pressure. So the vac-
uum pump oil may migrate out of the pump into the service hose.
This is possible when the pump is switched off after evacuation (vac-
uuming) and hose is connected to it.
To prevent this migration, use a manual valve placed near the hose-
to-pump connection, as follows.
• Usually vacuum pumps have a manual isolator valve as part of the pump. Close this valve to isolat e the service hose from the pump.
• For pumps without an isolator, use a hose equipped with a manual
shut-off valve near the pump end. Close the valve to isolate the
hose from the pump.
• If the hose has an automatic shut -off valve, disconnect the hose
from the pump. As long as the hose is connected, the valve is open
and lubricating oil may migrate.
Some one-way valves open when vacuum is applied and close
under a no vacuum condition. Such valves may restrict the pump’s
ability to pull a deep vacuum and are not recommended.
MANIFOLD GAUGE SET
Be certain that the gauge face indicates HFC-134a or R-134a. Be
sure the gauge set has 1/2 ″-16 ACME threaded connections for ser-
vice hoses. Confirm the set has been used only with refrigerant
HFC-134a (R-134a) and specified oils.
SERVICE HOSES SHA533D

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Be certain that the service hoses display the markings described
(colored hose with black stripe). All hoses must include positive shut-
off devices (either manual or aut omatic) near the end of the hoses
opposite the manifold gauge.
SERVICE COUPLERS Never attempt to connect HFC-134a (R-134a) service couplers to a
CFC-12 (R-12) A/C system. T he HFC-134a (R-134a) couplers will
not properly connect to the CFC-12 (R-12) system. However, if an
improper connection is attempted, discharging and contamination
may occur.
REFRIGERANT WEIGHT SCALE Verify that no refrigerant other than HFC-134a (R-134a) and speci-
fied oils have been used with the scale. If the scale controls refriger-
ant flow electronically, the hose fitting must be 1/2 ″-16 ACME.
CHARGING CYLINDER Using a charging cylinder is not re commended. Refrigerant may be vented into air from cylinder’s top valve
when filling the cylinder with refrigerant. Also, the accura cy of the cylinder is generally less than that of an
electronic scale or of quality recycle/recharge equipment.
Precaution for Leak Detection Dye INFOID:0000000004307049
• The A/C system contains a fluorescent leak detection dy e used for locating refrigerant leaks. An ultraviolet
(UV) lamp is required to illuminate the dye when inspecting for leaks.
• Always wear fluorescence enhancing UV safety goggles to protect your eyes and enhance the visibility of
the fluorescent dye.
• The fluorescent dye leak detector is not a replacement for an electronic refrigerant leak detector. The fluo-
rescent dye leak detector should be used in conjunction with an electronic refrigerant leak detector to pin-
point refrigerant leaks.
• For your safety and your customer’s satisfaction, read and follow all manufacture’s operating instructions
and precautions prior to performing the work.
• A compressor shaft seal should not be repaired because of dye seepage. The compressor shaft seal should
only be repaired after confirming the leak with an electronic refrigerant leak detector.
• Always remove any remaining dye from the leak area after repairs are complete to avoid a misdiagnosis dur- ing a future service.
• Do not allow dye to come into contact with paint ed body panels or interior components. If dye is spilled,
clean immediately with the approved dye cleaner. Fluores cent dye left on a surface for an extended period of
time cannot be removed. RHA274D

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PREPARATION
HFC-134a (R-134a) Servic e Tool and Equipment INFOID:0000000004307051
Never mix HFC-134a refrigerant and/or its specified oil with CFC-12 (R-12) refrigerant and/or its oil.
Separate and non-interchangeable service equipment must be used for handling each type of refrigerant/oil.
Refrigerant container fittings, service hose fittings and service equipment fittings (equipment which handles
refrigerant and/or oil) are different between CFC-12 (R-12) and HFC-134a (R-134a). This is to avoid mixed
use of the refrigerants/oil.
Adapters that convert one size fitting to another must never be used refrigerant/oil contamination will occur
and compressor failure will result.
Tool number
(Kent-Moore No.)
Tool name Description
HFC-134a (R-134a)
( — )
Refrigerant Container color: Light blue
Container marking: HFC-134a (R-
134a)
Fitting size: Thread size
• large container 1/2”-16 ACME
—
( — )
NISSAN A/C System Oil Type S Type: Poly Alkylene glycol oil (PAG),
type S
Application: HFC-134a (R-134a) vari-
able displacement swash plate com-
pressors (NISSAN only)
—
( — )
NISSAN A/C System Oil Type R Type: Poly Alkylene glycol oil (PAG),
type R
Application: HFC-134a (R-134a) vane
rotary compressors (NISSAN only)
KV991J0130
(ACR2005-NI)
ACR5 A/C Se rvice Center Refrigerant recovery, recycling and re-
charging
—
(J-41995)
Electronic refrigerant leak detector Checking for refrigerant leaks
Power supply: DC 12V (battery termi-
nal) S-NT197
WJIA0293E
AHA281A

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REFRIGERATION SYSTEM
Refrigerant Cycle INFOID:0000000004307053
REFRIGERANT FLOW The refrigerant flows in the standard pattern, that is , through the compressor, the condenser with liquid tank,
through the evaporator, and back to the compressor. T he refrigerant evaporation through the evaporator is
controlled by an externally equalized expansion valve, located inside the evaporator case.
FREEZE PROTECTION Under usual operating conditions, when the A/C is s witched ON, the compressor runs continuously, and the
evaporator pressure, and temperature is controlled by the compressor to prevent freeze up.
Refrigerant System Protection INFOID:0000000004307054
REFRIGERANT PRESSURE SENSOR The refrigerant system is protected against excessively hi gh or low pressures by the refrigerant pressure sen-
sor, located on the condenser. If the system pressure rise s above, or falls below the specifications, the refrig-
erant pressure sensor detects the pressure inside t he refrigerant line and sends the voltage signal to the ECM.
ECM makes the A/C relay go OFF and stops the compressor when pressure on the high-pressure side
detected by refrigerant pressure sensor is over about 2,746 kPa (27.46 bar, 28.0 kg/cm 2
, 398 psi), or below
about 134 kPa (1.34 bar, 1.4 kg/cm 2
, 20 psi).
PRESSURE RELIEF VALVE The refrigerant system is also protected by a pressure relief valve, located in the rear head of the compressor.
When the pressure of refrigerant in the system in creases to an unusual level [more than 3.8 MPa (38 bar,
38.76 kg/cm 2
, 551 psi)], the release port on the pressure relief valve automatically opens and releases refrig-
erant into the atmosphere.

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OIL
Maintenance of Oil Qu antity in Compressor INFOID:0000000004307056
The oil in the compressor circulates through the system with the refrigerant. Add oil to compressor when
replacing any component or after a lar ge refrigerant leakage occurred. It is important to maintain the specified
amount.
If oil quantity is not maintained properly , the following malfunctions may result:
• Lack of oil: May lead to a seized compressor.
• Excessive oil: Inadequate cooling (thermal exchange interference)
OIL
OIL ADJUSTING PROCEDURE FOR COMPONENTS REPLACEMENT EXCEPT COMPRESSOR After replacing any of the following major component s, add the correct amount of oil to the system.
Amount Of Oil To Be Added
*1: If refrigerant leak is small, no addition of oil is needed.
OIL ADJUSTING PROCEDURE FOR COMPRESSOR REPLACEMENT TYPE 1 Compressor (CR-10) : NISSAN A/C System Oil Type R
TYPE 2 Compressor (CSV511) : NI SSAN A/C System Oil Type S
Part replaced Oil to be added to system
Remarks
Amount of oil
m (US fl oz, Imp fl oz)
Evaporator 35 (1.2, 1.2) -
Condenser 15 (0.5, 0.5) -
Liquid tank 5 (0.2, 0.2) -
In case of refrigerant leak 30 (1.0, 1.1) Large leak
None *1 Small leak *1

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Component Parts and Har
ness Connector Location INFOID:0000000004307063
ENGINE COMPARTMENT
PASSENGER COMPARTMENT Magnet clutch does not engage in A/C, de-
frost/foot, or defrost mode. Go to Trouble Diagnosis Procedure for Magnet Clutch.
MTC-37Insufficient cooling Go to Trouble Diagnosis Procedure for Insufficient Cooling.
MTC-45Insufficient heating Go to Trouble Diagnosis Procedure for Insufficient Heating.
MTC-52Noise Go to Trouble Diagnosis Procedure for Noise.
MTC-53Symptom Reference Page
1. Refrigerant pressure sensor E17 (if
equipped) 2. A/C compressor F3 (if equipped)

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1. Turn blower control dial clockwise to "1" position. Blower should operate on low speed.
2. Turn blower control dial clockwise to "2" position, and continue checking blower speed until all speeds are
checked.
3. Leave blower on Maximum speed.
If NG, go to trouble diagnosis procedure for MTC-33, " Front Blower Motor Circuit " .
If OK, continue the check.
CHECKING DISCHARGE AIR 1. Turn mode door control dial to each position.
2. Confirm that discharge air comes out accord ing to the air distribution table. Refer to MTC-20, " Discharge
Air Flow " .
If NG, go to trouble diagnosis procedure for MTC-31, " Mode Door " .
If OK, continue the check.
CHECKING RECIRCULATION 1. Set intake door lever to REC position.
2. Operate intake door lever to FRE position.
3. Listen for intake door position change (you should hear blower sound change slightly).
If NG, go to trouble diagnosis procedure for MTC-33, " Intake Door " .
If OK, continue the check.
CHECKING TEMPERATURE DECREASE 1. Turn temperature control dial counterclockwise to full cold position.
2. Check for cold air at discharge air outlets.
If NG, go to trouble diagnosis procedure for MTC-45, " Insufficient Cooling " .
If OK, continue the check.
CHECKING TEMPERATURE INCREASE 1. Turn temperature control dial clockwise to full hot position.
2. Check for hot air at discharge air outlets.
If NG, go to trouble diagnosis procedure for MTC-52, " Insufficient Heating " .
If OK, continue the check.
CHECKING A/C SWITCH (IF EQUIPPED) 1. Turn fan control dial to the desired (1 to 4 speed) position.
2. Press A/C switch.
3. A/C switch indicator will turn ON. • Confirm that the compressor clutch engages (sound or visual inspection).
If NG, go to trouble diagnosis procedure for MTC-37, " Magnet Clutch Circuit (If Equipped) " .
If OK, continue the check.
CHECKING DEFROST A/C SWITCH (IF EQUIPPED) 1. Turn fan control dial to the desired (1 to 4 speed) position.
2. Turn mode dial to ( ) DEF.
3. Confirm that the compressor clutch engages (sound or vi sual inspection) and the A/C switch indicator illu-
minates.
If NG, go to trouble diagnosis procedure for MTC-37, " Magnet Clutch Circuit (If Equipped) " .
If all operational checks are OK (symptom cannot be duplicated), go to MTC-22, " How to Perform Trouble
Diagnosis for Quick and Accurate Repair " and perform tests as outlined. If symptom appears, refer to
MTC-22," How to Perform Trouble Diagnosis for Quick and Accurate Repair " and perform applicable trouble diagnosis
procedures.
Mode Door INFOID:0000000004307068
SYMPTOM: Air outlet does not change.
INSPECTION FLOW

Discharge
Air Flow " .
NOTE:
Confirm that the compressor clutch (with A/C) is engaged (visual inspection) when DEF ( ) or D/F ( )
is selected.
Can a symptom be duplicated? YES >> GO TO 3.
NO >> GO TO 2. Operational Check " .
Can a symptom be duplicated? YES >> Refer to
MTC-22, " How to Perform Trouble Diagnosis for Quick and Accurate Repair " .
NO >> System OK. OK >> If the symptom still exists, perform a comple
te operational check and check for other symptoms.
Refer to MTC-30, " Operational Check " . If other symptoms exist, refer to
MTC-22, " How to Perform
Trouble Diagnosis for Quick and Accurate Repair " .
NG >> Repair or adjust mode door control cable. Refer to MTC-65, " Mode Door Cable Adjustment " .
Air Mix Door INFOID:0000000004307069
SYMPTOM: Air mix door does not change.
INSPECTION FLOW YES >> GO TO 4.
NO >> GO TO 3. Operational Check " .
Can a symptom be duplicated? YES >> Refer to
MTC-22, " How to Perform Trouble Diagnosis for Quick and Accurate Repair " .
NO >> System OK.