Nissan Juke (2014 year). Service Repair Manual — part 154
COMPONENT PARTS
HAC-101
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
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SYSTEM DESCRIPTION
COMPONENT PARTS
Component Part Location
INFOID:0000000009754403
Component Description
INFOID:0000000009754404
1.
SYSTEM : Component Parts Loca-
tion"
2.
Magnet clutch
3.
Refrigerant pressure sensor
4.
TROL SYSTEM :
Component Parts Location"
.
5.
IPDM E/R
Refer to
6.
A/C control
7.
Thermo control amp.
8.
Blower fan resistor
9.
Blower motor
A.
Left side of A/C unit assembly
B.
Back side of A/C unit assembly
C.
Right side of A/C unit assembly
JMIIA1052ZZ
Component
Description
A/C unit assembly
Thermo control amp.
Blower motor
Blower fan resistor
A/C control
BCM
ECM
Revision: 2013 October
2014 JUKE
HAC-102
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
COMPONENT PARTS
A/C UNIT ASSEMBLY
A/C UNIT ASSEMBLY : Thermo Control Amp.
INFOID:0000000009754405
• Thermo control amp. is composed of thermistor and amplifier. Thermistor is installed on evaporator, and
amplifier is attached to foot duct.
• When the thermistor detecting temperature of the evaporator fin is extremely low, thermo control amp. sends
the thermo control amp. OFF signal to BCM, and stops the compressor.
A/C UNIT ASSEMBLY : Blower Motor
INFOID:0000000009754406
• The blower motor utilizes a brush-less motor with a rotating mag-
net.
• Quietness is improved over previous motors where the brush was
the point of contact and the coil rotated.
A/C UNIT ASSEMBLY : Blower Fan Resistor
INFOID:0000000009754407
• Compact and lightweight resistor is adopted with outstanding venti-
lation.
• Temperature fuse is installed to protects the blower motor circuit.
A/C Control
INFOID:0000000009754408
Controls the air conditioning function.
IPDM E/R
Refrigerant pressure sensor
Magnet clutch
Component
Description
JPIIA1575ZZ
ZHA152H
ZJIA0545J
Revision: 2013 October
2014 JUKE
COMPONENT PARTS
HAC-103
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
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BCM
INFOID:0000000009754409
BCM transmits A/C ON signal and blower fan ON signal to ECM via CAN communication, according to A/C
switch signal and blower fan ON signal that are received from A/C control and thermo control amp. signal that
is received from thermo control amp. At this moment, BCM turns A/C indicator ON.
ECM
INFOID:0000000009754410
ECM, when receiving A/C ON signal and blower fan ON signal from BCM, transmits A/C compressor request
signal to IPDM E/R via CAN communication according to status of the engine and refrigerant pressure.
IPDM E/R
INFOID:0000000009754411
A/C relay is integrated in IPDM E/R. IPDM E/R operates A/C relay when A/C compressor request signal is
received from ECM via CAN communication line.
Refrigerant Pressure Sensor
INFOID:0000000009754412
DESCRIPTION
• The refrigerant pressure sensor converts high-pressure side refrigerant pressure into voltage and outputs it
to ECM.
• ECM operates cooler cycle protection and cooling fan speed control according to voltage value that is input.
STRUCTURE AND OPERATION
• The refrigerant pressure sensor is a capacitance type sensor. It consists of a pressure detection ares and a
signal processing area.
• The pressure detection area, which is a variable capacity condenser, changes internal static capacitance
according to pressure force.
• The signal processing area detects the static capacitance of the pressure detection area, converts the static
capacitance into a voltage value, and transmits the voltage value to ECM.
Magnet Clutch
INFOID:0000000009754413
Compressor is driven by the magnet clutch which is magnetized by electric power supply.
PBIB2657E
Revision: 2013 October
2014 JUKE
HAC-104
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
SYSTEM
SYSTEM
System Diagram
INFOID:0000000009754414
System Description
INFOID:0000000009754415
DESCRIPTION
• Manual air conditioning system is controlled by each function of thermo control amp., BCM, ECM and IPDM
E/R.
• Fan speed of blower motor is changed by the combination of fan control dial operation and blower fan resis-
tor control.
CONTROL BY THERMO CONTROL AMP.
CONTROL BY BCM
CONTROL BY ECM
•
• Cooling fan control: Refer to
EC-52, "COOLING FAN CONTROL : System Description"
.
CONTROL BY IPDM E/R
•
• Cooling fan control: Refer to
PCS-40, "POWER CONTROL SYSTEM : System Description"
Compressor Control
INFOID:0000000009754416
DESCRIPTION
• BCM transmits the A/C ON signal and blower fan ON signal to ECM via CAN communication line only when
the compressor operational condition is satisfied, and A/C indicator is turned ON.
Refer to
BCS-99, "SIGNAL BUFFER SYSTEM : System Description"
.
NOTE:
Compressor operational condition
• A/C switch signal ON or defroster position signal ON
JMIIA1241GB
Revision: 2013 October
2014 JUKE
SYSTEM
HAC-105
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
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• Blower fan ON signal: ON
• Thermo control amp. signal: ON
• 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 ECM, IPDM E/R turns the A/C relay to ON, and acti-
vates the compressor.
Refer to
PCS-38, "RELAY CONTROL SYSTEM : System Description"
CONTROL BY THERMO CONTROL AMP.
Low Temperature Protection Control
• When the thermo control amp. detects that evaporator fin tempera-
ture is 2
°
C (36
°
F) or less, thermo control amp. signal becomes
OFF, and stops the compressor.
• When the air temperature returns to 3.5
°
C (38
°
F) or more, the
compressor is activated.
Operating Rate Control
• Thermo control amp. detects the positions of temperature control dial (air mix PBR) and MODE dial (MODE
switch).
• Thermo control amp. corrects the stopping temperature of A/C compressor depending on the condition of A/
C operation, and prevents too much heating by turning thermo control amp. signal ON
⇔
OFF.
CONTROL BY ECM
Compressor Protection Control at Pressure Malfunction
When the high-pressure side value that is detected by refrigerant pressure sensor is as per the following state,
ECM requests IPDM E/R to turn A/C relay OFF and stops the compressor.
• 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 Circulation 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 condition is high load, ECM transmit A/C relay OFF request to IPDM E/R, and stops the
compressor.
Refer to
EC-50, "AIR CONDITIONING CUT CONTROL : System Description"
.
Door Control
INFOID:0000000009754417
SWITCHES AND THEIR CONTROL FUNCTIONS
JMIIA1055GB
Revision: 2013 October
2014 JUKE
HAC-106
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
SYSTEM
*: Models for Canada
1.
Intake door
2.
Blower motor
3.
Air conditioner filter
4.
Evaporator
5.
Upper air mix door
6.
Lower air mix door
7.
Heater core
8.
Foot door
9.
Side ventilator door
10. Sub defroster door
11.
Center ventilator and defroster door
Fresh air intake
Recirculation air
Defroster
Center ventilator
Side ventilator
Foot
Rear foot
*
JPIIA1584ZZ
Revision: 2013 October
2014 JUKE
SYSTEM
HAC-107
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
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AIR DISTRIBUTION
Models except for Canada
Models for Canada
Dial/Lever position
Door position
Ce
nt
e
r v
en
til
at
o
r a
nd
de
fr
ost
e
r
do
or
S
u
b
de
fros
te
r do
or
Si
de
v
en
til
at
o
r
do
or
Fo
ot doo
r
In
ta
k
e
do
or
Up
pe
r a
ir m
ix
do
or
Lowe
r a
ir m
ix
do
or
MODE dial
P
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L
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—
—
—
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Intake lever
—
—
—
—
A
B
Temperature control dial
Full cold
—
D
E
Full hot
C
F
Discharge air flow
MODE dial position
Air outlet/distribution
Ventilator
Foot
Defroster
Center
Side
52.6%
47.3%
—
—
34.0%
27.7%
38.4%
—
—
19.1%
57.9%
23.0%
—
13.5%
42.4%
44.1%
—
16.3%
—
83.8%
Discharge air flow
MODE dial position
Air outlet/distribution
Ventilator
Foot
Defroster
Center
Side
Front
Rear
52.6%
47.3%
—
—
—
28.2%
25.9%
29.6%
16.3%
—
—
16.3%
43.0%
21.0%
19.7%
—
12.2%
33.1%
16.3%
38.4%
—
16.3%
—
—
83.8%
Revision: 2013 October
2014 JUKE
HAC-108
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
OPERATION
OPERATION
Switch Name and Function
INFOID:0000000009754418
A/C CONTROLLER (A/C CONTROL)
1.
MODE dial
2.
Fan control dial
3.
A/C switch
4.
Temperature control dial
5.
Intake lever
MODE dial
• Mode position is selected to an optimal position by operating this dial.
• When D/F or DEF is selected while blower motor is activated, the compressor automatically turns
ON.
NOTE:
A/C switch (compressor control) is turned ON when D/F or DEF is selected while A/C switch indicator
is OFF, but A/C switch indicator is not illuminated.
Fan control dial
Fan speed can be adjusted within a range from 1st to 4th.
A/C switch
The compressor control (A/C switch indicator) is turned ON
⇔
OFF each time by pressing this switch
while the blower motor is activated.
NOTE:
A/C switch (compressor control) is turned ON when D/F or DEF is selected while A/C switch indicator
is OFF, but A/C switch indicator is not illuminated.
Temperature control dial
The setting temperature can be selected to an optimum temperature by operating this dial.
• Clockwise rotation: Discharge air flow temperature increases
• Counterclockwise rotation: Discharge air flow temperature decreases.
Intake lever
The air inlet changes REC
⇔
FRE each time by operation this lever.
JMIIA1242ZZ
Revision: 2013 October
2014 JUKE
DIAGNOSIS SYSTEM (BCM)
HAC-109
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
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DIAGNOSIS SYSTEM (BCM)
Description
INFOID:0000000009754419
Air conditioning system performs self-diagnosis, operation check, function diagnosis, and various settings
using diagnosis function of each control unit.
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
INFOID:0000000009754420
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
×
: Applicable item
ECU
Diagnostic item
(CONSULT)
BCM
BCM-AIR CONDITIONER
Self Diagnostic Result
Data Monitor
Active Test
ECM
ENGINE
Self Diagnostic Result
Data Monitor
IPDM E/R
IPDM E/R
Self Diagnostic Result
Data Monitor
Auto active test
Diagnosis mode
Function Description
Work Support
Changes the setting for each system function.
Self Diagnostic Result
Displays the diagnosis results judged by BCM.
CAN Diag Support Monitor
Monitors the reception status of CAN communication viewed from BCM.
Data Monitor
The BCM input/output signals are displayed.
Active Test
The signals used to activate each device are forcibly supplied from BCM.
Ecu Identification
The BCM part number is displayed.
Configuration
• Read and save the vehicle specification.
• Write the vehicle specification when replacing BCM.
System
Sub system selection item
Diagnosis mode
Work Support
Data Monitor
Active Test
Door lock
DOOR LOCK
×
×
×
Rear window defogger
REAR DEFOGGER
×
×
Warning chime
BUZZER
×
×
Interior room lamp control
INT LAMP
×
×
×
Remote keyless entry system
MULTI REMOTE ENT
×
×
×
Exterior lamp
HEAD LAMP
×
×
×
Wiper and washer
WIPER
×
×
×
Turn signal and hazard warning lamps
FLASHER
×
×
Air conditioning system
AIR CONDITONER
×
×
Combination switch
COMB SW
×
Revision: 2013 October
2014 JUKE
HAC-110
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
DIAGNOSIS SYSTEM (BCM)
AIR CONDITIONER
AIR CONDITIONER : CONSULT Function (BCM - AIR CONDITIONER) (Manual A/C)
INFOID:0000000009754421
DATA MONITOR
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
Display item list
ACTIVE TEST
Body control system
BCM
×
NATS
IMMU
×
×
Interior room lamp battery saver
BATTERY SAVER
×
×
×
Back door open
TRUNK
×
Theft warning alarm
THEFT ALM
×
×
×
RAP system
RETAINED PWR
×
×
Signal buffer system
SIGNAL BUFFER
×
×
Panic alarm
PANIC ALARM
×
TPMS
AIR PRESSUE MONITOR
×
×
×
System
Sub system selection item
Diagnosis mode
Work Support
Data Monitor
Active Test
Monitor Item [Unit]
Contents
FAN ON SIG
[On/Off]
Displays blower motor status as judged from blower fan ON signal.
AIR COND SW
[On/Off]
Displays A/C switch status as judged from A/C switch signal.
THERMO AMP
[On/Off]
Displays thermo control amp. status as judged from thermo control amp. signal.
IGN SW
[On/Off]
Displays ignition switch position status as judged form ignition switch signal.
FR DEF SW
[On/Off]
Displays the D/F or DEF status as judged from defroster position signal.
Test item
Operation
Description
A/C INDICATOR
On
A/C indicator is turned ON.
Off
A/C indicator is turned OFF.
Revision: 2013 October
2014 JUKE
BCM, ECM, IPDM E/R
HAC-111
< ECU DIAGNOSIS INFORMATION >
[MANUAL AIR CONDITIONING]
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ECU DIAGNOSIS INFORMATION
BCM, ECM, IPDM E/R
List of ECU Reference
INFOID:0000000009754422
ECU
Reference
BCM
BCS-132, "DTC Inspection Priority Chart"
ECM
EC-99, "DTC Inspection Priority Chart"
IPDM E/R
Revision: 2013 October
2014 JUKE
HAC-112
< WIRING DIAGRAM >
[MANUAL AIR CONDITIONING]
MANUAL AIR CONDITIONING SYSTEM
WIRING DIAGRAM
MANUAL AIR CONDITIONING SYSTEM
Wiring Diagram
INFOID:0000000009754423
JCIWA0540GB
Revision: 2013 October
2014 JUKE
MANUAL AIR CONDITIONING SYSTEM
HAC-113
< WIRING DIAGRAM >
[MANUAL AIR CONDITIONING]
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JRIWC1724GB
Revision: 2013 October
2014 JUKE
HAC-114
< WIRING DIAGRAM >
[MANUAL AIR CONDITIONING]
MANUAL AIR CONDITIONING SYSTEM
JRIWC1725GB
Revision: 2013 October
2014 JUKE
MANUAL AIR CONDITIONING SYSTEM
HAC-115
< WIRING DIAGRAM >
[MANUAL AIR CONDITIONING]
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JRIWC1726GB
Revision: 2013 October
2014 JUKE
HAC-116
< BASIC INSPECTION >
[MANUAL AIR CONDITIONING]
DIAGNOSIS AND REPAIR WORK FLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work Flow
INFOID:0000000009754424
OVERALL SEQUENCE
DETAILED FLOW
JMKIA8652GB
Revision: 2013 October
2014 JUKE
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