Nissan Pathfinder (2006 year). Instruction — part 335
TROUBLE DIAGNOSIS
MTC-33
C
D
E
F
G
H
I
K
L
M
A
B
MTC
2006 Pathfinder
PASSENGER COMPARTMENT
WJIA1301E
MTC-34
TROUBLE DIAGNOSIS
2006 Pathfinder
Schematic
EJS004RI
WJWA0396E
TROUBLE DIAGNOSIS
MTC-35
C
D
E
F
G
H
I
K
L
M
A
B
MTC
2006 Pathfinder
Wiring Diagram — A/C,M —
EJS004RJ
WJWA0397E
MTC-36
TROUBLE DIAGNOSIS
2006 Pathfinder
WJWA0280E
TROUBLE DIAGNOSIS
MTC-37
C
D
E
F
G
H
I
K
L
M
A
B
MTC
2006 Pathfinder
WJWA0281E
MTC-38
TROUBLE DIAGNOSIS
2006 Pathfinder
WJWA0199E
TROUBLE DIAGNOSIS
MTC-39
C
D
E
F
G
H
I
K
L
M
A
B
MTC
2006 Pathfinder
Front Air Control Terminals and Reference Value
EJS004RK
Measure voltage between each terminal and ground by following
Terminals and Reference Value for front air control.
PIN CONNECTOR TERMINAL LAYOUT
TERMINALS AND REFERENCE VALUE FOR FRONT AIR CONTROL
WJIA1302E
WJIA1303E
Termi-
nal No.
Wire
color
Item
Ignition
switch
Condition
Voltage (V)
(Approx.)
1
BR
Mode door motor CW
ON
Clockwise rotation
Battery voltage
2
W
Air mix door motor (Driver) CW
ON
Clockwise rotation
Battery voltage
3
G/R
Air mix door motor (Driver) CCW
ON
Counterclockwise rotation
Battery voltage
4
Y
Intake door motor CW
ON
Clockwise rotation
Battery voltage
5
O
Intake door motor CCW
ON
Counterclockwise rotation
Battery voltage
6
W/G
Power supply for IGN
ON
-
Battery voltage
10
W
Compressor ON signal
ON
A/C switch OFF
5V
ON
A/C switch ON
0V
11
Y
Rear defrost request
ON
-
Battery voltage
12
L
Intake sensor
ON
-
0 - 5V
13
V
Sensor ground
ON
-
0 - 5V
14
R
Mode door motor CCW
ON
Counterclockwise rotation
Battery voltage
18
BR
Front blower monitor
ON
Front blower motor OFF
Battery voltage
Front blower motor ON
0V
19
R/Y
Power supply for BAT
-
-
Battery voltage
20
B
Ground
-
-
0V
21
V
Mode door motor feedback
ON
-
0 - 5V
22
SB
Air mix door motor (Front) feedback
ON
-
0 - 5V
23
G
Power supply for mode door motor
and air mix door motor (Front) PBR
ON
-
5V
25
R
Rear defroster request
ON
-
Battery voltage
26
P
Ground for mode door motor and air
mix door motor (Front) PBR
ON
-
0V
MTC-40
TROUBLE DIAGNOSIS
2006 Pathfinder
Operational Check
EJS004RL
The purpose of the operational check is to confirm that the system operates properly.
CHECKING BLOWER
1.
Turn blower control dial clockwise. Blower should operate on low speed.
2.
Turn the blower control dial again, and continue checking each blower speed until all speeds are checked.
3.
Leave blower on speed 4.
If NG, go to trouble diagnosis procedure for
MTC-57, "Front Blower Motor Circuit"
If OK, continue with next check.
CHECKING DISCHARGE AIR
1.
Turn the mode switch to each position.
2.
Confirm that discharge air comes out according to the air distribution table.
Mode door position is checked in the next step.
If NG, go to trouble diagnosis procedure for
MTC-45, "Mode Door Motor Circuit"
If OK, continue with next check.
NOTE:
Confirm that the A/C compressor clutch is engaged (sound or visual inspection) and intake door position is at
fresh when the DEF (
) or D/F (
) is selected.
DISCHARGE AIR FLOW
CHECKING RECIRCULATION
1.
Press recirculation (
) switch one time. Recirculation indicator should illuminate.
2.
Press recirculation (
) switch one more time. Recirculation indicator should go off.
3.
Listen for intake door position change (blower sound should change slightly).
If NG, go to trouble diagnosis procedure for
MTC-53, "Intake Door Motor Circuit"
If OK, continue with next check.
NOTE:
Confirm that the compressor clutch is engaged (sound or visual inspection) and intake door position is at fresh
when the DEF or D/F is selected.
CHECKING TEMPERATURE DECREASE
1.
Rotate temperature control dial counterclockwise.
2.
Check for cold air at appropriate discharge air outlets.
If NG, listen for sound of air mix door motor operation if OK, go to trouble diagnosis procedure for
. If air mix door motor appears to be malfunctioning, go to
CEDURE FOR AIR MIX DOOR MOTOR (FRONT)"
If OK, continue with next check.
CHECKING TEMPERATURE INCREASE
1.
Rotate temperature control dial clockwise.
2.
Check for hot air at appropriate discharge air outlets.
Conditions
: Engine running and at normal operating temperature
Mode door position
Air outlet/distribution
Vent
Foot
Defroster
95%
5%
—
60%
40%
—
20%
55%
25%
15%
50%
35%
7%
15%
78%
Airflow always present at side demisters
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