2016 NISSAN NOTE heating

SERVICE INFORMATION FOR ELECTRICAL INCIDENTGI-43
< BASIC INSPECTION >
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This test may indicate a loose or poorly mounted sensor or relay.
Engine Compartment
There are several reasons a vehicle or engine vibration could cause an electrical complaint. Some of the
things to check for are:
• Connectors not fully seated.
• Wiring harness not long enough and is being stressed due to engine vibrations or rocking.
• Wires laying across brackets or moving components.
• Loose, dirty or corroded ground wires.
• Wires routed too close to hot components.
To inspect components under the hood, start by verifyi ng the integrity of ground connections. (Refer to Ground
Inspection described later.) First check that the system is properly grounded. Then check for loose connection
by gently shaking the wiring or components as previous ly explained. Using the wiring diagrams inspect the
wiring for continuity.
Behind the Instrument Panel
An improperly routed or improperly clamped harness can become pinched during accessory installation. Vehi-
cle vibration can aggravate a harness which is routed along a bracket or near a screw.
Under Seating Areas
An unclamped or loose harness can cause wiring to be pinched by seat components (such as slide guides)
during vehicle vibration. If the wiring runs under s eating areas, inspect wire routing for possible damage or
pinching.
HEAT SENSITIVE
• The customer's concern may occur during hot weather or after car has sat for a short time. In such cases you will want to check for a
heat sensitive condition.
• To determine if an electrical component is heat sensitive, heat the component with a heat gun or equivalent.
CAUTION:
Do not heat components above 60 °C (140° F).
• If incident occurs while heating t he unit, either replace or properly
insulate the component.
FREEZING
• The customer may indicate the incident goes away after the car warms up (winter time). The cause could be related to water freez-
ing somewhere in the wiring/electrical system.
• There are two methods to check for this. The first is to arrange for the owner to leave his car overnight. Make sure it will get cold
enough to demonstrate his complaint. Leave the car parked out-
side overnight. In the morning, do a quick and thorough diagnosis
of those electrical components which could be affected.
• The second method is to put the suspect component into a freezer long enough for any water to freeze. Reinstall the part into the car
and check for the reoccurrence of the incident. If it occurs, repair or
replace the component.
WATER INTRUSION
SGI839
SGI842
SGI843
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HAC-2
Diagnosis Procedure ..............................................37
A/C INDICATOR ................................................39
Diagnosis Procedure ........................................... ...39
FRONT BLOWER MOTOR ................................41
Description ........................................................... ...41
Diagnosis Procedure ..............................................41
Component Inspection (Front Blower Motor) ..........43
Component Inspection (B lower Relay) ...................43
Component Inspection (Front Blower Motor Re-
sistor) ................................................................... ...
43
Component Inspection (Fan Switch) ......................43
MAGNET CLUTCH ............................................45
Description ........................................................... ...45
Component Function Check ...................................45
Diagnosis Procedure ..............................................45
SYMPTOM DIAGNOSIS .............................47
MANUAL AIR CONDITIONING SYSTEM ...... ...47
Symptom Table ................................................... ...47
INSUFFICIENT COOLING .................................48
Description ........................................................... ...48
Diagnosis Procedure ..............................................48
INSUFFICIENT HEATING .................................49
Description ........................................................... ...49
Diagnosis Procedure ..............................................49
COMPRESSOR DOES NOT OPERATE ...........50
Description ........................................................... ...50
Diagnosis Procedure ............................................ ...50
REMOVAL AND INSTALLATION ..............52
FRONT AIR CONTROL .................................. ...52
Exploded View ..................................................... ...52
Removal and Installation .........................................52
THERMO CONTROL AMPLIFIER ................. ...53
Removal and Installation .........................................53
REFRIGERANT PRESSURE SENSOR ......... ...54
Removal and Installation .........................................54
FRONT BLOWER MOTOR RESISTOR ......... ...55
Exploded View ..................................................... ...55
Removal and Installation .........................................55
DOOR CABLE ................................................ ...56
Exploded View ..................................................... ...56
INTAKE DOOR CABLE ......................................... ...56
INTAKE DOOR CABLE : Removal and Installation
...
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INTAKE DOOR CABLE : Adjustment .................. ...56
MODE DOOR CABLE ............................................ ...57
MODE DOOR CABLE : Removal and Installation ...57
MODE DOOR CABLE : Adjustment ........................57
AIR MIX DOOR CABLE ......................................... ...57
AIR MIX DOOR CABLE : Removal and Installation
...
57
AIR MIX DOOR CABLE : Adjustment .................. ...57
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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.
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MANUAL AIR CONDITIONING SYSTEMHAC-47
< SYMPTOM DIAGNOSIS > [MANUAL AIR CONDITIONING]
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SYMPTOM DIAGNOSIS
MANUAL AIR CONDITIONING SYSTEM
Symptom TableINFOID:0000000012430749
SYMPTOM TABLE
Symptom Reference Page
A/C system does not come on. Go to Trouble Diagnosis Procedure for A/C System. HAC-30
A/C system cannot be controlled.Go to Self-diagnosis Function. HAC-28
Air outlet does not change.Go to Adjustment Procedure for Mode Door. HAC-57
Discharge air temperature does not change. Go to Adjustment Procedure for Air Mix Door. HAC-57
Intake door does not change.Go to Adjustment Procedure for Intake Door. HAC-56
Front blower motor operation is malfunction-
ing.Go to Trouble Diagnosis Procedure for Front Blower Motor.
HAC-41
Magnet clutch does not engage.Go to Trouble Diagnosis Procedure for Magnet Clutch. HAC-45
Insufficient cooling.Go to Trouble Diagnosis Procedure for Insufficient Cooling. HAC-48
Insufficient heating.Go to Trouble Diagnosis Procedure for Insufficient Heating. HAC-49
Noise.Go to Trouble Diagnosis Procedure for Noise. HA-17
A/C switch LED does not illuminate. Go to Trouble Diagnosis Procedure for A/C System. HAC-39
Both high- and low-pressure sides are too
high.Go to Trouble Diagnosis Procedure for Abnormal Pressure.
HA-15
High-pressure side is too high and low pres-
sure side is too low.Go to Trouble Diagnosis Procedure for Abnormal Pressure.
HA-15
High-pressure side is too low and low-pres-
sure side is too high.Go to Trouble Diagnosis Procedure for Abnormal Pressure.
HA-15
Both high- and low-pressure side sometimes
become negative.Go to Trouble Diagnosis Procedure for Abnormal Pressure.
HA-15
Low-pressure side sometimes becomes neg-
ative.Go to Trouble Diagnosis Procedure for Abnormal Pressure.
HA-15
Low-pressure side becomes negative. Go to Trouble Diagnosis Procedure for Abnormal Pressure. HA-15
Revision: August 20152016 Versa Note

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INSUFFICIENT HEATINGHAC-49
< SYMPTOM DIAGNOSIS > [MANUAL AIR CONDITIONING]
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INSUFFICIENT HEATING
DescriptionINFOID:0000000012430752
Symptom
• Insufficient heating
• No warm air comes out. (Air flow volume is normal.)
Diagnosis ProcedureINFOID:0000000012430753
NOTE:
Perform self-diagnosis with CONSULT before performing sy mptom diagnosis. If any malfunction result or DTC
is detected, perform the corresponding diagnosis.
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 the engine coolant. Refer to CO-9, "
Refilling".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Refill engine coolant and repair or replace the parts depending on the inspection results.
2.CHECK HEATER HOSE
Check installation of heater hose by visually or touching.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace parts depending on the inspection results.
3.CHECK HEATER CORE
1. Check temperature of inlet hose and outlet hose of heater core.
2. Check that inlet side of heater core is hot and the outle t side is slightly lower than/almost equal to the inlet
side.
CAUTION:
Always perform the temperature inspection in a sh ort period of time because the engine coolant
temperature is very hot.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace heater core. Refer to HA-35, "
HEATER CORE : Removal and Installation".
4.CHECK AIR LEAKAGE FROM EACH DUCT
Check duct and nozzle, etc. of air conditioning system for air leakage.
Is the inspection result normal?
YES >> Check air mix door cable inst allation and air mix door operation.
NO >> Repair or replace parts depending on the inspection results.
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FRONT BLOWER MOTOR RESISTORHAC-55
< REMOVAL AND INSTALLATION > [MANUAL AIR CONDITIONING]
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FRONT BLOWER MOTOR RESISTOR
Exploded ViewINFOID:0000000012430760
Removal and InstallationINFOID:0000000012430761
REMOVAL
1. From under the LH side of the instrment panel, disconnect harness connector from front blower motor
resistor.
2. Remove screws and front blower motor resistor.
INSTALLATION
Installation is in the reverse order of removal.
1. Heating and cooling unit assembly 2. Front blower motor 3. Front blower motor resistor
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HAC-56
< REMOVAL AND INSTALLATION >[MANUAL AIR CONDITIONING]
DOOR CABLE
DOOR CABLE
Exploded ViewINFOID:0000000012430762
INTAKE DOOR CABLE
INTAKE DOOR CABLE : Removal and InstallationINFOID:0000000012430763
The intake door cable is not serviced separately. Refer to
HAC-52, "Removal and Installation".
INTAKE DOOR CABLE : AdjustmentINFOID:0000000012430764
1. Remove glove box assembly. Refer to IP-25, "Removal and Installation".
2. Disconnect intake door cable (1) from clip (A).
3. Set intake door lever to REC position.
4. Push intake door link (2) in the direction shown, then carefully pull outer cable to front air control side and connect clip.
1. Heating and cooling unit assembly 2. Plate 3. Air mix door linkage 2
4. Air mix door linkage 1 5. Air mix door cable6. Intake door lever
7. Intake door linkage 8. Intake door cable9. Foot door lever
10. Mode door cable 11. Main linkage12. Ventilator door rod
13. Ventilator door lever
A. To front air control
JMIIA1742ZZ
JMIIA0617ZZ
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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 ................................................. ...
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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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