Nissan Altima (L32) 2007-2012 Service Manual: Refrigeration system
Refrigerant Cycle
Refrigerant flow
The refrigerant flows in the standard pattern, that is, through the compressor, the condenser with liquid tank, through the evaporator, and back to the compressor. The refrigerant evaporation through the evaporator coil is controlled by an externally equalized expansion valve, located inside the evaporator case.
Refrigerant System Protection
Refrigerant pressure sensor
The refrigerant system is protected against excessively high or low pressures by the refrigerant pressure sensor, located on the condenser. If the system pressure rises above or falls below the specifications, the refrigerant pressure sensor detects the pressure inside the refrigerant line and sends the voltage signal to the ECM.
The ECM then ceases to supply power to the A/C relay which disengages and stops the compressor when pressure on the high pressure side (as detected by refrigerant pressure sensor) is over approximately 2,746 kPa (28 kg/cm2, 398 psi), or below approximately 120 kPa (1.22 kg/cm2, 17.4 psi).
Pressure Relief Valve
The refrigerant system is also protected by a pressure relief valve, located in the rear head of the compressor.
When the pressure of refrigerant in the system increases to an abnormal level [more than 3,727 kPa (38 kg/ cm2, 540 psi)], the release port on the pressure relief valve automatically opens and releases refrigerant into the atmosphere.
Function information
Component Part Location ENGINE COMPARTMENT 1. A/C compressor F3 2. Ambient sensor E211 3. Refrigerant pressure sensor E219 4. A/C relay (internal to IPDM E/R) 1. A/C compressor F3 2. Ambie ...Automatic air conditioner system
System Diagram CONTROL SYSTEM The control system consists of input sensors, switches, front air control and outputs. The relationship of these components is shown in the figure below: System ...Other materials:
Fuel tank
Exploded View
1. Lock ring
2. Fuel level sensor, fuel filter, and fuel
pump assembly
3. Seal ring
4. Fuel tank mounting straps
5. Fuel tank protector
6. Fuel tank
7. Fuel filler hose
8. Fuel filler hose
9. Grommet
10. Fuel filler cap
Removal and Installation
REMOVAL
WARNING:
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B1129 – B1132 side airbag module RH
Description
DTC B1129 – B1132 FRONT RH SIDE AIR BAG MODULE
The front RH side air bag module is wired to the air bag diagnosis sensor
unit. The air bag diagnosis sensor
unit will monitor for opens and shorts in detected lines to the front RH side
air bag module.
PART LOCATION
Refer to SRC- ...
Front bumper
Removal and Installation
1. Front bumper supports
2. Front bumper side bracket
3. Reinforcement bracket
4. Front bumper reinforcement
5. Front energy absorbing foam
6. Front bumper fascia
7. Tow hook cover
8. Front grille
9. License plate bracket
10. Fog lamp finisher (if equipped)
11. ...