2016 NISSAN NOTE sensor

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-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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SYSTEMHAC-13
< SYSTEM DESCRIPTION > [MANUAL AIR CONDITIONING]
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Low Temperature Protection Control
• When thermo control amp. detects
that evaporator fin temperature
is 1.5° C (35° F) or less, thermo control amp. switches A/C ON sig-
nal to OFF and stops the compressor.
When the evaporator fin temperature returns to 3 °C (37° F) or
more, the compressor is activated.
CONTROL BY ECM
Refrigerant Pressure Protection
The refrigerant system is protected against excessively high- or low-pressures by the refrigerant pressure s\
en-
sor, located on the liquid tank on the condenser. The refr igerant pressure sensor detects the pressure inside
the refrigerant line and sends a voltage signal to the ECM. If the system pressure rises above or falls below
the following values, the ECM requests the IPDM E/ R to de-energize the A/C relay and disengage the com-
pressor.
• 3.12 MPa (31.82 kg/cm
2, 452.4 psi) or more (When the engine speed is less than 1,500 rpm)
• 2.74 MPa (27.95 kg/cm
2, 397.3 psi) or more (When the engine speed is 1,500 rpm or more)
• 0.14 MPa (1.43 kg/cm
2, 20.3 psi) or less
Compressor Oil Cir culation Control
When the engine starts while the engine coolant temperature is 56 °C (133° F) or less, ECM activates the com-
pressor for approximately 6 seconds and circulates the compressor oil once.
Air Conditioning Cut Control
When the engine is under a high load condition, the ECM transmits an A/C relay OFF request to IPDM E/R,
and stops the compressor. Refer to EC-37, "
AIR CONDITIONING CUT CONTROL : System Description".
Door ControlINFOID:0000000012430719
SWITCHES AND THEIR CONTROL FUNCTIONS
JMIIA1228GB
Revision: August 2015 2016 Versa Note

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MAGNET CLUTCHHAC-45
< DTC/CIRCUIT DIAGNOSIS > [MANUAL AIR CONDITIONING]
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MAGNET CLUTCH
DescriptionINFOID:0000000012430746
SYSTEM DESCRIPTION
When the blower speed dial is in one of the fan speed pos itions, the front air control outputs a fan ON signal to
the BCM. When the A/C switch is pressed, the A/C switch LED illuminat es and the front air control outputs a
compressor ON signal to the BCM. Any mode control button can be selected. As long as the BCM receives a
compressor ON signal and a fan ON signal from the front air control, the conditions required for the BCM to
transmit a compressor ON request to the ECM have been met.
The BCM sends a compressor ON signal to ECM, via CAN communication line.
The ECM judges whether the compressor can be turned ON, based on each sensor status (refrigerant pres-
sure sensor signal, throttle angle sensor, etc.). If it judges the compressor can be turned ON, it sends a com-
pressor ON signal to IPDM E/R, via CAN communication line.
Upon receipt of a compressor ON signal from ECM, IPDM E/R turns the A/C relay ON to operate the compres-
sor.
Component Function CheckINFOID:0000000012430747
1.CHECK MAGNET CLUTCH OPERATION
Perform auto active test of IPDM E/R. Refer to PCS-10, "
CONSULT Function (IPDM E/R)".
Is the inspection result normal?
YES >> Inspection End.
NO >> Refer to HAC-45, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000012430748
Regarding Wiring Diagram information, refer to HAC-22, "Wiring Diagram".
1.CHECK FUSE
Check 10A fuse (No. 42, located in IPDM E/R).
NOTE:
Refer to PG-60, "
IPDM E/R Terminal Arrangement".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace the blown fuse after repairing the affected circuit.
2.CHECK MAGNET CLUTCH
1. Turn ignition switch OFF.
2. Disconnect compressor connector.
3. Directly apply battery voltage to the magnet clut ch. Check for operation visually and by sound.
Does it operate normally?
YES >> GO TO 3.
NO >> Replace magnet clutch. Refer to HA-26, "
Removal and Installation".
3.CHECK MAGNET CLUTCH POWER SUPPLY CIRCUIT FOR OPEN
1. Disconnect IPDM E/R connector.
2. Check continuity between IPDM E/R harness connector and compressor harness connector.
IPDM E/R Compressor
Continuity
Connector TerminalConnector Terminal
E45 28F3 1Yes
Revision: August 2015 2016 Versa Note

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HAC-50
< SYMPTOM DIAGNOSIS >[MANUAL AIR CONDITIONING]
COMPRESSOR DOES NOT OPERATE
COMPRESSOR DOES NOT OPERATE
DescriptionINFOID:0000000012430754
SYMPTOM
Compressor does not operate.
Diagnosis ProcedureINFOID:0000000012430755
NOTE:
• Perform self-diagnosis with CONSULT before performi
ng symptom diagnosis. If any malfunction result or
DTC is detected, perform the corresponding diagnosis.
• Check that refrigerant system is fully charged. If the refrigerant charge is low, perform the inspection for refrigerant leakage
1.CHECK MAGNET CLUTCH OPERATION
Check magnet clutch. Refer to HAC-45, "
Component Function Check".
Does it operate normally?
YES >> GO TO 2.
NO >> Repair or replace malfunctioning parts.
2.CHECK REFRIGERANT PRESSURE SENSOR
Check refrigerant pressure sensor. Refer to EC-462, "
Component Function Check".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace malfunctioning parts.
3.CHECK A/C ON SIGNAL
Check A/C ON signal. Refer to HAC-32, "
Component Function Check".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace malfunctioning parts.
4.CHECK DEFROSTER POSITION SIGNAL
Check defroster position signal. Refer to HAC-37, "
Component Function Check".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace malfunctioning parts.
5.CHECK BLOWER FAN ON SIGNAL
Check blower fan ON signal. Refer to HAC-35, "
Component Function Check".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace malfunctioning parts
6.CHECK BCM OUTPUT SIGNAL
With CONSULT
1. Select “Data Monitor” of “ECM”.
2. Select “AIR COND SIG” and “HEATER FAN SW”, and check status under the following conditions.
Is the inspection result normal?
Monitor item Condition Status
AIR COND SIG A/C switchOFF (A/C indicator: OFF)
Off
ON (A/C indicator: ON) On
HEATER FAN SW Blower motor OFF
Off
ON On
Revision: August 2015 2016 Versa Note

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HAC-54
< REMOVAL AND INSTALLATION >[MANUAL AIR CONDITIONING]
REFRIGERANT PRESSURE SENSOR
REFRIGERANT PRESSURE SENSOR
Removal and InstallationINFOID:0000000012430759
CAUTION:
Perform lubricant return operation before each A/C system disassembly. However, if a large amount of
refrigerant or lubricant leaks from the system, do no
t perform lubricant return operation. Refer to HA-
22, "Perform Oil Return Operation".
REMOVAL
1. Discharge the refrigerant. Refer to HA-20, "Recycle Refrigerant".
2. Remove front grille. Refer to EXT-32, "
Removal and Installation".
3. Remove upper air guide and air guide (LH). Refer to DLK-144, "
Exploded View".
4. Clean refrigerant pressure sensor and surrounding area. CAUTION:
Make sure to clean carefully.
5. Disconnect refrigerant pressure sensor harness connector.
6. Support liquid tank, then remove refrigerant pressure sensor (1). CAUTION:
• Be careful not to damage liquid tank.
• Be careful not to damage core surface of condenser.
• Cap or wrap the joint of the condenser and liquid tankwith suitable material such as vinyl tape to avoid the entry
of air.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Do not reuse O-rings.
• Apply compressor oil to new O-ring of the refrigerant pressure sensor for installation.
• After charging refrigerant, check for leaks. Refer to HA-18, "
Leak Test".
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HA-2
LIQUID TANK : Removal and Installation of Liquid
Tank ........................................................................
32
REFRIGERANT PRESSURE SENSOR ....................32
REFRIGERANT PRESSURE SENSOR : Remov-
al and Installation ................................................. ...
32
HEATING AND COOLING UNIT ASSEMBLY ...33
Exploded View ..................................................... ...33
HEATING AND COOLING UNIT ASSEMBLY ....... ...34
HEATING AND COOLING UNIT ASSEMBLY :
Removal and Installation ........................................
34
HEATER CORE ...................................................... ...35
HEATER CORE : Removal and Installation ...........35
EVAPORATOR ....................................................... ...35
EVAPORATOR : Removal and Installation .............35
EXPANSION VALVE .............................................. ...35
EXPANSION VALVE : Removal and Installation ....36
SERVICE DATA AND SPECIFICATIONS
(SDS) .......... ................................. ...............
37
SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................. ...
37
Compressor ......................................................... ...37
Oil ............................................................................37
Refrigerant ..............................................................37
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PRECAUTIONSHA-3
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000012431985
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the
battery and wait at least three mi nutes before performing any service.
Precaution for WorkINFOID:0000000012918336
• When removing or disassembling each component, be ca reful not to damage or deform it. If a component
may be subject to interference, be sure to protect it with a shop cloth.
• When removing (disengaging) components with a screwdriver or similar tool, be sure to wrap the component with a shop cloth or vinyl tape to protect it.
• Protect the removed parts with a shop cloth and prevent them from being dropped.
• Replace a deformed or damaged clip.
• If a part is specified as a non-reusabl e part, always replace it with a new one.
• Be sure to tighten bolts and nuts securely to the specified torque.
• After installation is complete, be sure to check that each part works properly.
• Follow the steps below to clean components:
- Water soluble dirt:
• Dip a soft cloth into lukewarm water, wring the water out of the cloth and wipe the dirty area.
• Then rub with a soft, dry cloth.
-Oily dirt:
• Dip a soft cloth into lukewarm water with mild detergent (concentration: within 2 to 3%) and wipe the dirty
area.
• Then dip a cloth into fresh water, wring the water out of the cloth and wipe the detergent off.
• Then rub with a soft, dry cloth.
- Do not use organic solvent such as thinner, benzene, alcohol or gasoline.
- For genuine leather seats, use a genuine leather seat cleaner.
Revision: August 2015 2016 Versa Note

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