Nissan Pathfinder (2012 year). Manual — part 409

CONDENSER

HA-53

< REMOVAL AND INSTALLATION >

CONDENSER

Removal and Installation for Condenser

INFOID:0000000007356327

REMOVAL

1. Discharge the refrigerant. Refer to

HA-36, "HFC-134a (R-134a) Service Procedure"

2. Remove the radiator. Refer to

CO-46, "Removal and Installation"

(VK56DE),

CO-17, "Removal and Instal-

lation"

(VQ40DE).

CAUTION:

Be careful not to damage the core surface of the condenser and the radiator.

3. Disconnect the front high-pressure flexible A/C hose and the front high-pressure A/C pipe from the con-

denser.

CAUTION:

Cap or wrap the joint of the pipes with suitable material such as vinyl tape to avoid the entry of air.

4. Disconnect the refrigerant pressure sensor harness connector.
5. Remove the refrigerant pressure sensor from the condenser.
6. Lift the condenser out of the mounting grommets and remove

the condenser.

NOTE:

The condenser and liquid tank are serviced as an assembly.

INSTALLATION

Installation is in the reverse order of removal.

Refer to

HA-34, "Component"

CAUTION:

• Do not reuse O-rings.

• Apply A/C oil to the O-rings of the front high-pressure A/C pipe, refrigerant pressure sensor, and

front high-pressure flexible A/C hose for installation.

• After charging refrigerant, check for leaks.

• Replace the mounting grommets as necessary.

LJIA0177E

August 2012

2012 Pathfinder

HA-54

< REMOVAL AND INSTALLATION >

REFRIGERANT PRESSURE SENSOR

REFRIGERANT PRESSURE SENSOR

Removal and Installation for Refrigerant Pressure Sensor

INFOID:0000000007356328

REMOVAL

1. Discharge the refrigerant. Refer to

HA-36, "HFC-134a (R-134a) Service Procedure"

2. Disconnect the refrigerant pressure sensor harness connector

and remove the refrigerant pressure sensor from the condenser.

CAUTION:

Be careful not to damage the condenser fins.

INSTALLATION

Installation is in the reverse order of removal.

Refer to

HA-34, "Component"

CAUTION:

• Be careful not to damage the condenser fins.

• Do not reuse O-rings.

• Apply A/C oil to the O-ring of the refrigerant pressure sensor for installation.

• After charging refrigerant, check for leaks.

LJIA0177E

August 2012

2012 Pathfinder

EXPANSION VALVE

HA-55

< REMOVAL AND INSTALLATION >

EXPANSION VALVE

Removal and Installation - Expansion Valve

INFOID:0000000007356329

REMOVAL

1. Discharge the refrigerant. Refer to

HA-25, "HFC-134a (R-134a) Service Procedure"

2. Remove the high-pressure pipe and low-pressure pipe bolt (A)

from the front expansion valve (1).

CAUTION:

Cap or wrap the A/C refrigerant pipe ends and the evapora-

tor pipe ends with a suitable material such as vinyl tape to

avoid the entry of air and contaminants.

3. Remove the front expansion valve bolts (A).

4. Remove the front expansion valve.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• Do not reuse O-rings.

• Apply A/C oil to the O-rings on the front expansion valve and the A/C refrigerant pipes for installa-

tion.

• After charging refrigerant, check for leaks.

Removal and Installation - Rear Expansion Valve

INFOID:0000000008807281

REMOVAL

1. Discharge the refrigerant. Refer to

HA-25, "HFC-134a (R-134a) Service Procedure"

2. Reposition the RH third row seatback out of the way of the access panel.
3. Open the access panel in the luggage side lower finisher RH.
4. Disconnect the rear high-pressure and low-pressure A/C pipes from the rear expansion valve.

CAUTION:

Cap or wrap the A/C refrigerant pipe ends with a suitable material such as vinyl tape to avoid the

entry of air and contaminants.

5. Remove the rear expansion valve.

INSTALLATION

Installation is in the reverse order of removal.

ALIIA0626ZZ

ALIIA0625ZZ

Expansion valve bolts

: Refer to

HA-34, "Component"

A/C refrigerant pipe to expansion valve bolt

: Refer to

HA-34, "Component"

August 2012

2012 Pathfinder

HA-56

< REMOVAL AND INSTALLATION >

EXPANSION VALVE

CAUTION:

• Do not reuse O-rings.

• Apply A/C oil to the O-rings on then front expansion valve and the A/C refrigerant pipes for installa-

tion.

• After charging refrigerant, check for leaks.

Rear expansion valve bolts

: Refer to

HA-34, "Component"

A/C refrigerant pipe to expansion valve bolt

: Refer to

HA-34, "Component"

August 2012

2012 Pathfinder

AMBIENT SENSOR

HA-57

< REMOVAL AND INSTALLATION >

AMBIENT SENSOR

Removal and Installation

INFOID:0000000007356330

REMOVAL

1. Remove the front grille. Refer to

EXT-20, "Removal and Installation"

2. Disconnect the ambient sensor (1) electrical connector.

•

: Front

NOTE:

The ambient sensor is located behind the front grille, below the

hood latch.

3. Release the ambient sensor (1) clip and then remove the ambi-

ent sensor.

INSTALLATION

Installation is in the reverse order of removal.

AWIIA0262ZZ

August 2012

2012 Pathfinder

HA-58

< REMOVAL AND INSTALLATION >

HEATER PUMP

HEATER PUMP

Removal and Installation

INFOID:0000000007356331

Heater Pump

NOTE:

• Only the VQ40DE engine is equipped with a heater pump for the rear heater system.

• When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from

spilling.

REMOVAL

1. Partially drain the engine cooling system. Refer to

CO-12, "Changing Engine Coolant"

(VQ40DE).

2. Disconnect the heater pump electrical connector.
3. Disconnect the two heater hoses.
4. Remove the heater pump from the bracket securing the heater pump to the cowl top.

CAUTION:

Do not disassemble the heater pump, replace the heater pump as an assembly.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• The heater pump rubber mount must be fully seated on the bracket.

• Do not disassemble the heater pump, replace the heater pump as an assembly.

LBIA0414E

Cowl top

Heater pump electrical connector

Heater pump

Heater hose and clamp