2016 NISSAN NOTE air conditioning

PRECAUTIONSHAC-5
< PRECAUTION > [MANUAL AIR CONDITIONING]
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• When the compressor is removed, store it in th e same way as it is when mounted on the vehicle.
Failure to do so will cause oil to enter the low-pressure chamber.
• Use always a torque wrench and a b ack-up wrench when connecting tubes.
• Plug immediately all openings to prevent entry of dust and mois ture after disconnecting tubes.
• Connect the pipes at the final stag e of the operation when installing an air conditioner in the vehicle.
Do not remove the seal caps of pipes and other comp onents until just before required for connec-
tion.
• Allow components stored in cool areas to warm to working area temperature before removing seal
caps. This prevents condensation from forming inside A/C components.
• Remove thoroughly moisture from the refriger ation system before charging the refrigerant.
• Replace always used O-rings.
• Apply oil to the O-rings shown in illustrations wh en connecting tubes. Be careful not to apply oil to
threaded portion.
• O-ring must be closely attached to the groove portion of tube.
• Be careful not to damage O-ring and tube when replacing the O-ring.
• Connect tube until a click can be heard. Then tighten the nut or bolt by hand. Check that the O-ring is
installed to tube correctly.
• Perform leak test and make sure there are no leaks from connections after connecting lines. Discon-
nect that line and replace the O-ring when the refrigerant leak point is found. Then tighten connec-
tions of seal seat to the specified torque.
COMPRESSOR
CAUTION:
• Plug all openings to prevent moisture and foreign matter from entering.
• When the compressor is removed, store it in the same way as it is when mounted on the vehicle.
• Follow “MAINTENANCE OF OIL LEVEL” exactly when replacing or repairing compressor. Refer to HA-22, "
Description".
• Keep friction surfaces between clutch and pulley clean . Wipe them off by using a clean waste cloth
moistened with solvent if the su rfaces are contaminated with oil.
• Turn the compressor shaft by hand more than fi ve turns in both directions after compressor service
operation. This equally distribut es oil inside the compressor. Let the engine idle and operate the
compressor for one hour after the compressor is installed.
• After replacing the compressor magnet clutch, appl y voltage to the new clutch to check for normal
operation.
LEAK DETECTION DYE
CAUTION:
• The A/C system contains a fluorescent leak detect ion dye used for locating refrigerant leaks. An
ultraviolet (UV) lamp is required to il luminate the dye when inspecting for leaks.
• Always wear fluorescence enhancing UV safety goggles to protect eyes and enhance the visibility of
the fluorescent dye. Name : A/C System Oil Type: DH-PR
RHA861F
Revision: August 2015
2016 Versa Note

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HAC-6
< PRECAUTION >[MANUAL AIR CONDITIONING]
PRECAUTIONS
• The fluorescent leak detection dye is not a replacem
ent for an electronic leak detector. The fluores-
cent leak detection dye should be u sed in conjunction with an electronic leak detector to pin-point
refrigerant leaks.
• Read and follow all manufacture’s operating inst ructions and precautions prior to performing the
work for the purpose of safet y and customer’s satisfaction.
• A compressor shaft seal should not necessarily be repaired becau se of dye seepage. The compres-
sor shaft seal should only be repaired after conf irming the leak with an electronic leak detector.
• Always remove any remaining dye from the leak area after repairs are completed to avoid a misdiag-
nosis during a future service.
• Do not allow dye to come into contact with painted body panels or interior components. Clean imme- diately with the approved dye cl eaner if dye is spilled. Fluorescent dye left on a surface for an
extended period of time cannot be removed.
• Do not spray the fluorescent dye cleaning agent on hot surfaces (engine exhaust manifold, etc.).
• Do not use more than one refrigerant dye bottle [1/4 ounce (7.4 cc)] per A/C system.
• Leak detection dyes for HFC-134a (R-134a) and CFC-12 (R-12) A/C systems are different. Do not use
HFC-134a (R-134a) leak detection dye in CFC-12 (R-12) A/C system, or CFC-12 (R-12) leak detection
dye in HFC-134a (R-134a) A/C system, or A/C system damage may result.
• The fluorescent properties of the dye remains fo r three or more years unless a compressor malfunc-
tion occurs.
NOTE: Identification
• Vehicles with factory installed fluorescent dye have a green label.
• Vehicles without factory installed fluorescent dye have a blue label.
Service EquipmentINFOID:0000000012430713
RECOVERY/RECYCLING RECHARGING EQUIPMENT
Be certain to follow the manufacturer’s instructions for machine operation and machine maintenance. Do not
introduce any refrigerant other than that specified into the machine.
ELECTRICAL 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. Vacuum
pump oil may migrate out of the pump into the service hose. This is
possible when the pump is switc hed OFF after evacuation (vacuum-
ing) and hose is connected to it.
To prevent this migration, use a manual valve placed near the hose-
to-pump connection, as per the following.
• Vacuum pumps usually have a manual isolator valve as part of the pump. Close this valve to isolat e the service hose from the pump.
• Use a hose equipped with a manual shut-off valve near the pump
end for pumps without an isolator. Close the valve to isolate the
hose from the pump.
• Disconnect the hose from the pump if the hose has an automatic
shut-off valve. 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 no vacuum condition. Such valves may restrict the pump’s
ability to pull a deep vacuum and are not recommended.
MANIFOLD GAUGE SET
RHA270DA
Revision: August 2015 2016 Versa Note

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PRECAUTIONSHAC-7
< PRECAUTION > [MANUAL AIR CONDITIONING]
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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
Be certain that the service hoses display the markings described
(colored hose with black stripe) . All hoses must be equipped with
positive shut-off devices (either manual or automatic) near the end of
the hoses opposite to the manifold gauge.
SERVICE COUPLERS
Do not attempt to connect HFC-134a (R-134a) service couplers to
the CFC-12 (R-12) A/C system. The HFC-134a (R-134a) couplers
do 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. The hose fitting must be 1/
2 ″-16 ACME if the scale controls refrigerant flow electronically.
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.
SHA533D
RHA272D
Shut-off valve rotati on A/C service valve
Clockwise Open
Counterclockwise Close
RHA273D
RHA274D
Revision: August 2015 2016 Versa Note

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HAC-8
< PREPARATION >[MANUAL AIR CONDITIONING]
PREPARATION
PREPARATION
PREPARATION
Special Service ToolINFOID:0000000012430714
The actual shape of the tools may differ from those illustrated here.
Commercial Service ToolINFOID:0000000012430715
Tool number
(TechMate No.)
Tool name Description
—
(J-46534)
Trim Tool Set Removing trim components
AWJIA0483ZZ
Tool name
Description
Power tool Loosening nuts, screws and bolts
PIIB1407E
Revision: August 2015 2016 Versa Note

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COMPONENT PARTSHAC-9
< SYSTEM DESCRIPTION > [MANUAL AIR CONDITIONING]
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SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts LocationINFOID:0000000012430716
A. RH front of engine compartment B. Behind LH side of front fascia No. Component Description
1. ECM The ECM sends a compressor ON request to the IPDM E/R based on the status of engine
operation and load as well as refrigerant pressure information. If all the conditions are met for
A/C operation, the ECM transmits the compressor ON request to the IPDM E/R.
2. IPDM E/R A/C relay is integrated in IPDM E/R. IPDM
E/R operates A/C relay when receiving A/C com-
pressor request signal from ECM via CAN communication line.
3. A/C compressor Vaporized refrigerant is drawn into the A/C compressor from the evaporator, where it is com-
pressed to a high pressure, high temperature vapor. The hot, compressed vapor is then dis-
charged to the condenser.
4. Refrigerant pressure sensor Refer to EC-27, "
Refrigerant Pressure Sensor".
ALIIA0811ZZ
Revision: August 2015 2016 Versa Note

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HAC-10
< SYSTEM DESCRIPTION >[MANUAL AIR CONDITIONING]
COMPONENT PARTS
A. LH side of instrument panel B. Behind center of instrument panel C. Center of instrument panel
No. Component Description
1. BCM The BCM receives the fan ON and A/C ON signals from the front air control and sends a com-
pressor ON request to the ECM.
2. Fuse Block (J/B) Located in the passenger compartment, behind the left lower IP, the Fuse Block (J/B) con-
tains the front blower motor relay and several fuses required for the air conditioner control
system.
3. Blower relay The blower relay controls the flow of current to fuse 20, 21 and 22 in the Fuse Block (J/B).
The relay is connected directly to ground, and is energized when the ignition switch is in the
ON or START position.
4. Front blower motor The front blower motor varies the speed at which the air flows through the ventilation system.
5. Front blower motor resistor Ground for the blower is supplied through blower resistor and the blower speed switch. As
the switch is moved from position 1 through 4, more current is allowed to flow through the
motor, for a higher speed. This is because less resistors are in the path as the switch is
moved to a higher position. When the switch is on the highest position, all resistors are by-
passed.
6. Thermo control amp. Thermo control amp. is composed of thermistor and amplifier. When the A/C switch signal is
received from the front air control, the thermo control amp. transmits the A/C ON signal to the
BCM according to evaporator fin temperature. When the thermistor detecting temperature of
the air that passes through evaporator is extremely low, the thermo control amp. sends the
A/C OFF signal to BCM, and stops the compressor.
7. Front air control The front air control controls the operation of the A/C and heating system.
AWIIA1862ZZ
Revision: August 2015 2016 Versa Note

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SYSTEMHAC-11
< SYSTEM DESCRIPTION > [MANUAL AIR CONDITIONING]
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SYSTEM
System DescriptionINFOID:0000000012430717
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
• The manual air conditioning system is c ontrolled by a sequence of functions from the front air control, BCM,
ECM, and IPDM E/R.
• The fan speed of the front blower motor is changed by t he combination of the fan control dial (fan switch)
operation and blower resistor control.
Compressor ControlINFOID:0000000012430718
PRINCIPLE OF OPERATION
Compressor is not activated.
Functional Circuit Diagram
ALIIA0813GB
Module/Function Door control A/C request signalCompressor control Cooling fan control
Front air control HAC-13
— HAC-11—
BCM —BCS-7
(With Intelligent Key system)
BCS-78
(Without Intelligent Key system) ——
ECM — —HAC-11
EC-38
IPDM E/R — —HAC-11EC-38
Revision: August 2015 2016 Versa Note

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HAC-12
< SYSTEM DESCRIPTION >[MANUAL AIR CONDITIONING]
SYSTEM
Functional Initial Inspection Chart
×
: Applicable
DESCRIPTION
• When A/C switch signal is received from front air control, the thermo control amp. transmits A/C ON signal to
the BCM according to evaporator fin temperature.
• When the front blower motor is operated, the front air control transmits blower fan ON signal to the BCM.
• BCM transmits the A/C ON signal and blower fan ON signal to ECM via CAN communication line. Refer to LAN-25, "
CAN COMMUNICATION SYSTE M : System Description"
• ECM judges the conditions of each sensor (Refrigerant pressure sensor signal, accelerator position signal,
etc.), and transmits the A/C compressor request signal to IPDM E/R via CAN communication line.
• By receiving the A/C compressor request signal from EC M, IPDM E/R turns the A/C relay to ON, and acti-
vates the compressor. Refer to PCS-5, "
RELAY CONTROL SYSTEM : System Description".
CONTROL BY THERMO CONTROL AMP.
L (1) : Fan ON signal CAN (1) : A/C ON signal
L (2) : A/C switch signal : Blower fan ON signal
L (3) : Defroster position switch 2 CAN (2) : A/C compressor request signal
L (4) : Thermo control amp. ON signal : A/C compressor feedback signal
JPIIA1661GB
Control unitDiagnosis item Location
ABCDE
BCM “BCM-AIR COND” Self-diagnosis
—×———
Data monitor ×————
ECM “ENGINE” Self-diagnosis
(CAN communication line)
———
×—
Data monitor —×× ——
IPDM E/R “IPDM E/R” Self-diagnosis
(CAN communication line)
————
×
Data monitor — — — ×—
Auto active test — — — —×
Revision: August 2015 2016 Versa Note

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