Nissan Pathfinder (2006 year). Instruction — part 341
TROUBLE DIAGNOSIS
MTC-81
C
D
E
F
G
H
I
K
L
M
A
B
MTC
2006 Pathfinder
3.
CHECK INTAKE SENSOR
Refer to
.
OK or NG
OK
>> Replace front air control. Refer to
NG
>> Replace intake sensor. Refer to
.
4.
CHECK CIRCUIT CONTINUITY BETWEEN INTAKE SENSOR AND FRONT AIR CONTROL
1.
Turn ignition switch OFF.
2.
Disconnect front air control connector.
3.
Check continuity between intake sensor harness connector
M146 terminal 2 and front air control harness connector M49 ter-
minal 12.
4.
Check continuity between intake sensor harness connector
M146 terminal 2 and ground.
OK or NG
OK
>> Replace front air control. Refer to
NG
>> Repair harness or connector.
COMPONENT INSPECTION
Intake Sensor
After disconnecting intake sensor connector, measure resistance
between terminals 1 and 2 at sensor harness side, using the table
below.
If NG, replace intake sensor.
2 - 12
: Continuity should exist.
2 - Ground
: Continuity should not exist.
WJIA1158E
Temperature
°
C (
°
F)
Resistance k
Ω
−
15 (5)
209.0
−
10 (14)
160.0
−
5 (23)
123.0
0 (32)
95.8
5 (41)
74.9
10 (50)
58.9
15 (59)
46.7
20 (68)
37.3
25 (77)
30.0
30 (86)
24.2
35 (95)
19.7
40 (104)
16.1
45 (113)
13.2
WJIA1159E
MTC-82
CONTROL UNIT
2006 Pathfinder
CONTROL UNIT
PFP:27500
Removal and Installation
EJS004RW
FRONT AIR CONTROL
Removal
1.
Remove cluster lid C. Refer to
2.
Remove the four screws securing the front air control to cluster
lid C.
3.
Remove the front air control.
Installation
Installation is in the reverse order of removal.
LBIA0416E
INTAKE SENSOR
MTC-83
C
D
E
F
G
H
I
K
L
M
A
B
MTC
2006 Pathfinder
INTAKE SENSOR
PFP:27723
Removal and Installation
EJS004RX
REMOVAL
1.
Remove the front kick plate. Refer to
2.
Remove the lower dash side finisher. Refer to
EI-28, "LOWER DASH SIDE FINISHER"
3.
Remove the front pillar lower finisher. Refer to
EI-28, "FRONT PILLAR LOWER FINISHER"
4.
Remove the assist grip handle
5.
Remove the front pillar upper finisher. Refer to
EI-28, "FRONT PILLAR UPPER FINISHER"
.
6.
Remove the lower glove box. Refer to
IP-15, "LOWER INSTRUMENT PANEL RH AND LOWER GLOVE
7.
Remove the upper glove box (cluster lid E). Refer to
IP-10, "INSTRUMENT PANEL ASSEMBLY"
8.
Disconnect the intake sensor electrical connector.
NOTE:
The intake sensor is located on the top of the heater and cooling
unit assembly next to the A/C evaporator cover.
9.
Twist the intake sensor to remove the intake sensor from the
heater and cooling unit assembly.
INSTALLATION
Installation is in the reverse order of removal.
WJIA1415E
MTC-84
BLOWER MOTOR
2006 Pathfinder
BLOWER MOTOR
PFP:27226
Components
EJS004RY
Blower Motor
Removal and Installation
EJS004RZ
REMOVAL
1.
Remove the lower glove box assembly. Refer to
IP-15, "LOWER INSTRUMENT PANEL RH AND LOWER
2.
Disconnect the blower motor electrical connector.
3.
Remove the three screws and remove the blower motor.
INSTALLATION
Installation is in the reverse order of removal.
LJIA0136E
1.
Heater and cooling unit assembly
2.
Blower motor
3.
Blower motor resistor
IN-CABIN MICROFILTER
MTC-85
C
D
E
F
G
H
I
K
L
M
A
B
MTC
2006 Pathfinder
IN-CABIN MICROFILTER
PFP:27277
Removal and Installation
EJS004S0
FUNCTION
The air inside the passenger compartment is filtered by the in-cabin
microfilters when the heater or A/C controls are set on either the
recirculation or fresh mode. The two in-cabin microfilters are located
in the heater and cooling unit assembly.
REPLACEMENT TIMING
Replacement of the two in-cabin microfilters is recommended on a regular interval depending on the driving
conditions. Refer to
. It may also be necessary to replace the two in-cabin
microfilters as part of a component replacement if the in-cabin microfilters are damaged.
REPLACEMENT PROCEDURE
1.
Open the lower glove box and press in on the sides so that it will
open completely allowing it to hang by the cord.
2.
Remove the screw and remove the in-cabin microfilter cover.
3.
Remove the in-cabin microfilters from the heater and cooling
unit housing.
4.
Insert the first new in-cabin microfilter into the heater and cool-
ing unit housing and slide it over to the right. Insert the second
new in-cabin microfilter into the heater and cooling unit housing.
NOTE:
The in-cabin microfilters are marked with air flow arrows. The
end of the microfilter with the arrow should face the rear of the
vehicle. The arrows should point downward.
LJIA0012E
WLIA0023E
LJIA0134E
LJIA0148E
MTC-86
IN-CABIN MICROFILTER
2006 Pathfinder
5.
Install the in-cabin microfilter cover.
6.
Close the lower glove box completely.
LJIA0134E
HEATER & COOLING UNIT ASSEMBLY
MTC-87
C
D
E
F
G
H
I
K
L
M
A
B
MTC
2006 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-154, "Discharging Refrigerant"
.
2.
Drain the coolant from the engine cooling system. Refer to
MA-13, "DRAINING 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
MTC-88
HEATER & COOLING UNIT ASSEMBLY
2006 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
9.
Remove the two front floor ducts.
10. Remove the steering column. Refer to
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
.
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
●
After charging the refrigerant, check for leaks. Refer to
ATC-170, "Checking for Refrigerant Leaks"
.
NOTE:
●
Fill the engine cooling system with the specified coolant mixture. Refer to
.
●
Recharge the A/C system. Refer to
ATC-154, "Evacuating System and Charging Refrigerant"
WJIA1292E
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