Nissan Juke Service and Repair Manual : Component parts
Manual air conditioning system : Component Part Location
1. BCM
• With Intelligent Key: Refer to BCS-
6, "BODY CONTROL SYSTEM :
Component Parts Location".
• Without Intelligent Key: Refer to BCS-161, "Removal and Installation".
2. Magnet clutch
3. Refrigerant pressure sensor
4. ECM
• HR16DE: Refer to EC-455, "ENGINE
CONTROL SYSTEM :
Component Parts Location".
• MR16DDT: Refer to EC-25, "ENGINE CONTROL SYSTEM : Component Parts Location".
• K9K: Refer to EC-813, "Component Parts Location".
5. IPDM E/R
• With Intelligent Key: Refer to PCS-
5, "Component Parts Location".
• Without Intelligent Key: Refer to PCS-37, "Component Parts Location".
6. A/C control
7. Blower fan resistor
8. Thermo control amp.
9. Blower motor
A. Left side of A/C unit assembly B. Right side of A/C unit assembly
Manual air conditioning system : Component Description
PTC heater control system : Component Parts Location
1. BCM
• With Intelligent Key: Refer to BCS-
6, "BODY CONTROL SYSTEM :
Component Parts Location".
• Without Intelligent Key: Refer to BCS-161, "Removal and Installation".
2. Ambient sensor
3. ECM
Refer to EC-813.
4. A/C control
5. PTC heater
6. PTC heater control unit
A. Left side of A/C unit assembly B. Back side of A/C unit assembly
PTC heater control system : Component Description
A/C unit assembly : Thermo Control Amp.
• 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
• The blower motor utilizes a brush-less motor with a rotating magnet.
• 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
• Compact and lightweight resistor is adopted with outstanding ventilation.
• Temperature fuse is installed to protects the blower motor circuit.
A/C unit assembly : PTC Heater Control Unit
• The PTC heater control unit consists of a microcomputer and connectors for signal input and output and for power supply. The PTC heater control unit controls PTC heater system.
• Self-diagnosis functions are also built into PTC heater control unit to provide quick check of malfunctions in the PTC heater control system.
A/C unit assembly : PTC Heater
Heat element is heated and air flow temperature is increased by power supply from PTC relay.
A/C Control
Controls the air conditioning function.
BCM
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. and A/C indicator is turned ON.
ECM
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
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.
Ambient Sensor
Ambient sensor measures ambient air temperature. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.
Refrigerant Pressure Sensor
DESCRIPTION
• The refrigerant pressure sensor converts high-pressure side refrigerant pressure into voltage and outputs it to ECM.
• ECM operates cooling system protection and idle 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
Compressor is driven by the magnet clutch which is magnetized by electric power supply.
System
Manual air conditioning system : System Diagram
Manual air conditioning system : System Description
DESCRIPTION
• Manual air conditioning system is controlled by each function of thermo
control ...
Other materials:
Precaution Necessary for Steering Wheel Rotation after Battery Disconnect
NOTE:
• Before removing and installing any control units, first turn the ignition
switch to the LOCK position, then disconnect
both battery cables.
• After finishing work, confirm that all control unit connectors are connected
properly, then re-connect both
battery cables.
• Always use CONS ...
Test Value and Test Limit
The following is the information specified in Service $06 of ISO 15031-5.
The test value is a parameter used to determine whether a system/circuit
diagnostic test is OK or NG while
being monitored by the ECM during self-diagnosis. The test limit is a reference
value which is specified as the ...
Additional service when removing battery negative terminal
Description
• The NAVI control unit is equipped with the anti-theft system.
• The NAVI control unit operates after authenticating a fixed four-digit
anti-theft code.
• After removing the battery of the NAVI control unit, the authentication of the
anti-theft code is required.
Work Procedure
...