Nissan Juke Service and Repair Manual : System

System Diagram

System Description


System Description

REFRIGERANT CYCLE

Refrigerant Flow
The refrigerant from the compressor, flows the condenser with liquid tank, the evaporator, and returns to the compressor. The refrigerant evaporation in the evaporator is controlled by an expansion valve.

Freeze Protection

Automatic air conditioner When intake sensor detects that evaporator surface temperature is 2C (36F) or less, A/C auto amp.

requests BCM to turn the compressor OFF.

BCM requests ECM to turn the compressor to OFF by the signal from A/C auto amp., and ECM makes A/C relay to OFF, and stops the compressor.

Manual air conditioner
When thermo control amp. detects that evaporator surface temperature becomes 2C (36F) or less, BCM requests ECM to turn the compressor OFF, and stops the compressor.

REFRIGERANT SYSTEM PROTECTION

Refrigerant Pressure Sensor The refrigerant system is protected against excessively high- or low-pressures by the refrigerant pressure sensor, installed at the condenser exit. The refrigerant pressure sensor detects the pressure inside the refrigerant line and sends the voltage signal to the ECM if the system pressure rises above, or falls below the specifications.

ECM turns the A/C relay to OFF and stops the compressor when the high-pressure side detected by refrigerant pressure sensor is following conditions; - Approximately 3,120 kPa (31.2 bar, 31.8 kg/cm2, 452 psi) or more (Engine speed is less than 1,500 rpm.) - Approximately 2,740 kPa (27.4 bar, 27.9 kg/cm2, 397 psi) or more (Engine speed is 1,500 rpm or more.)
- Approximately 120 kPa (1.2 bar, 1.2 kg/cm2, 17 psi) or less

Pressure Relief Valve The refrigerant system is also protected by a pressure relief valve, located in the rear head of the compressor.

The release port on the pressure relief valve automatically opens and releases refrigerant into the atmosphere when the pressure of refrigerant in the system increases to an unusual level [more than 3,800 kPa (38 bar, 38.8 kg/cm2, 551 psi)].

    Component parts
    Component Parts Location 1. Expansion valve 2. Condenser 3. Compressor 4. Liquid tank 5. Refrigerant pressure sensor 6. Evaporator A. Built-in heater & cooling unit assembly Componen ...

    Other materials:

    Service Equipment
    RECOVERY/RECYCLING RECHARGING EQUIPMENT Be certain to follow the manufacturers instructions for machine operation and machine maintenance. Never introduce any refrigerant other than that specified into the machine. ELECTRICAL LEAK DETECTOR Be certain to follow the manufacturers instruction ...

    B1132 side air bag module RH
    DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.CHECK SELF-DIAG RESULT With CONSULT-III 1. Turn ignition switch ON. 2. Perform Self Diagnostic Result mode of AIR BAG using CONSULT-III. Without CONSULT-III 1. Turn ignition switch ON. 2. Check the air bag warning lamp statu ...

    Drinking alcohol/drugs and driving
    WARNING Never drive under the influence of alcohol or drugs. Alcohol in the bloodstream reduces coordination, delays reaction time and impairs judgement. Driving after drinking alcohol increases the likelihood of being involved in an accident injuring yourself and others. Additionally, if you ...