Nissan Pathfinder (2007 year). Manual - part 330

IN-CABIN MICROFILTER

MTC-87

C

D

E

F

G

H

I

K

L

M

A

B

MTC

2007 Pathfinder

5.

Install the in-cabin microfilter cover.

6.

Close the lower glove box completely.

LJIA0134E

MTC-88

HEATER & COOLING UNIT ASSEMBLY

2007 Pathfinder

HEATER & COOLING UNIT ASSEMBLY

PFP:27110

Components

EJS004S1

Heater and Cooling Unit Assembly

Removal and Installation

EJS004S2

REMOVAL

1.

Discharge the refrigerant from the A/C system. Refer to 

ATC-158, "Discharging Refrigerant"

 .

2.

Drain the coolant from the engine cooling system. Refer to 

CO-10, "Changing Engine Coolant"

 .

3.

Disconnect the battery negative and positive terminals.

WJIA1416E

1.

High-pressure A/C pipe

2.

Low-pressure A/C pipe

3.

Expansion valve

4.

Heater core and evaporator pipes 
grommet

5.

A/C drain hose grommet

6.

A/C drain hose

7.

Heater core pipe mounts

8.

Heater core pipes

9.

Heater and cooling unit assembly

HEATER & COOLING UNIT ASSEMBLY

MTC-89

C

D

E

F

G

H

I

K

L

M

A

B

MTC

2007 Pathfinder

4.

Remove the RH heater core pipes nut.

5.

Disconnect the heater core hoses from the heater core.

6.

Disconnect the high- and low-pressure A/C pipes from the
expansion valve.

7.

Move the two front seats to the rearmost position on the seat
track.

8.

Remove the instrument panel and console panel. Refer to 

IP-10,

"Removal and Installation"

 .

9.

Remove the two front floor ducts.

10. Remove the steering column. Refer to 

PS-10, "Removal and

Installation"

 .

11. Disconnect the instrument panel wire harness at the RH and LH in-line connector brackets, and the fuse

block (SMJ) electrical connectors. Refer to 

PG-43, "Harness Layout"

 .

12. Remove the covers then remove the three steering member bolts from each side to disconnect the steer-

ing member from the vehicle body.

13. Remove the heater and cooling unit assembly with it attached to the steering member, from the vehicle.

CAUTION:

●

Use care not to damage the seats and interior trim panels when removing the heater and cooling
unit assembly with it attached to the steering member.

●

Use suitable plugs on the heater core pipes to prevent coolant leakage.

14. Remove the heater and cooling unit assembly from the steering member.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

●

Replace the O-ring of the low-pressure A/C pipe and high-pressure A/C pipe with a new one, and
apply compressor oil to the O-ring for installation. Refer to 

MTC-101, "Components"

 .

●

After charging the refrigerant, check for leaks. Refer to 

ATC-174, "Checking for Refrigerant Leaks"

.

NOTE:

●

Fill the engine cooling system with the specified coolant mixture. Refer to 

CO-10, "Changing Engine Cool-

ant"

 .

●

Recharge the A/C system. Refer to 

ATC-158, "Evacuating System and Charging Refrigerant"

 .

WJIA1292E

MTC-90

HEATER CORE

2007 Pathfinder

HEATER CORE

PFP:27140

Components

EJS004S3

Heater and Cooling Unit Assembly

Removal and Installation

EJS004S4

REMOVAL

1.

Remove the heater and cooling unit assembly. Refer to 

MTC-88, "HEATER & COOLING UNIT ASSEM-

BLY"

 .

2.

Remove the three screws and remove the heater core cover.

3.

Remove the heater core and evaporator pipe bracket.

4.

Remove the heater core.

NOTE:
If the in-cabin microfilters are contaminated from coolant leaking
from the heater core, replace the in-cabin microfilters with new
ones before installing the new heater core.

INSTALLATION

Installation is in the reverse order of removal.

LJIA0167E

1.

Heater core and evaporator pipe bracket 2.

Heater core

3.

Heater and cooling unit assembly

4.

Heater core cover

LJIA0134E

INTAKE DOOR MOTOR

MTC-91

C

D

E

F

G

H

I

K

L

M

A

B

MTC

2007 Pathfinder

INTAKE DOOR MOTOR

PFP:27730

Removal and Installation

EJS004S5

Intake Door Motor - Heater and Cooling Unit Assembly

REMOVAL

1.

Remove the heater and cooling unit assembly. Refer to 

MTC-88, "HEATER & COOLING UNIT ASSEM-

BLY"

 .

2.

Remove the steering member from the heater and cooling unit assembly.

3.

Disconnect the intake door motor electrical connector.

4.

Remove the three screws and remove the intake door motor.

INSTALLATION

Installation is in the reverse order of removal.

WJIA1312E

1.

Heater and cooling unit assembly

2.

Intake door motor

3.

Air mix door motor

4.

Blower motor resistor

5.

Mode door motor

MTC-92

MODE DOOR MOTOR

2007 Pathfinder

MODE DOOR MOTOR

PFP:27731

Removal and Installation

EJS004S6

Mode Door Motor - Heater and Cooling Unit Assembly

REMOVAL

1.

Remove the instrument panel side finisher. Refer to 

IP-10, "INSTRUMENT PANEL ASSEMBLY"

 .

2.

Remove the lower instrument cover. Refer to 

IP-10, "INSTRUMENT PANEL ASSEMBLY"

 .

3.

Disconnect the mode door motor electrical connector.

4.

Remove the three screws and remove the mode door motor.

INSTALLATION

Installation is in the reverse order of removal.

WJIA1312E

1.

Heater and cooling unit assembly

2.

Intake door motor

3.

Air mix door motor

4.

Blower motor resistor

5.

Mode door motor

AIR MIX DOOR MOTOR

MTC-93

C

D

E

F

G

H

I

K

L

M

A

B

MTC

2007 Pathfinder

AIR MIX DOOR MOTOR 

PFP:27732

Components

EJS004S7

Air Mix Door Motor - Heater and Cooling Unit Assembly

Removal and Installation

EJS004S8

REMOVAL

1.

Remove the heater and cooling unit assembly. Refer to 

MTC-88, "HEATER & COOLING UNIT ASSEM-

BLY"

 .

2.

Remove the steering member from the heater and cooling unit assembly.

3.

Disconnect the air mix door motor electrical connector.

4.

Remove the three screws and remove the air mix door motor.

INSTALLATION

Installation is in the reverse order of removal.

WJIA1312E

1.

Heater and cooling unit assembly

2.

Intake door motor

3.

Air mix door motor

4.

Blower motor resistor

5.

Mode door motor

MTC-94

FRONT BLOWER MOTOR RESISTOR

2007 Pathfinder

FRONT BLOWER MOTOR RESISTOR

PFP:27077

Removal and Installation

EJS004S9

Blower Motor Resistor - Heater and Cooling Unit Assembly

REMOVAL

1.

Disconnect the blower motor resistor electrical connector.

2.

Remove the two screws and remove the blower motor resistor.

INSTALLATION

Installation is in the reverse order of removal.

WJIA1312E

1.

Heater and cooling unit assembly

2.

Intake door motor

3.

Air mix door motor

4.

Blower motor resistor

5.

Mode door motor