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. Refrigerant pressure sensor 5. Liquid tank 6. Evaporator A. Built-in heater & cooling unit assembly Componen ...

    Other materials:

    Rear-facing child restraint installation using LATCH
    Refer to all Warnings and Cautions in the Child safety and Child restraints sections before installing a child restraint. Follow these steps to install a rear-facing child restraint using the LATCH system: 1. Position the child restraint on the seat. Always follow the child restraint manufa ...

    Power supply and ground circuit
    Diagnosis Procedure 1.CHECK FUSE AND FUSIBLE LINK Check that the following fuse and fusible link are not blown. Is the fuse fusing? YES >> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is blown. NO >> GO TO 2. 2.CHECK ...

    Final drive
    Exploded View 1. Shim 2. Differential side bearing outer race (transaxle case side) 3. Differential side bearing inner race (transaxle case side) 4. Final gear 5. Differential case 6. Differential side bearing inner race (clutch housing side) 7. Differential side bearing outer race ( ...