Nissan Pathfinder (2006 year). Manual - part 53

 

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Nissan Pathfinder (2006 year). Manual - part 53

 

 

TROUBLE DIAGNOSIS

ATC-89

C

D

E

F

G

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M

A

B

ATC

2006 Pathfinder

15. 

CHECK REAR BLOWER MOTOR GROUND CIRCUIT TO REAR BLOWER MOTOR RESISTOR

1.

Turn ignition switch OFF.

2.

Disconnect rear blower motor and rear blower motor resistor
connectors.

3.

Check continuity between rear blower motor connector B201
terminal 2 and rear blower motor resistor harness connector
B133 terminal 3.

4.

Check continuity between rear blower motor connector B201
terminal 2 and ground.

OK or NG

OK

>> GO TO 16.

NG

>> Repair harness or connector.

16. 

CHECK REAR BLOWER SWITCH (FRONT) CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear blower switch (front) connector.

3.

Check continuity between rear blower switch (front) connector
M52 (A) terminals 3, 7, and 8, and rear blower motor resistor
connector B133 (B) terminals 1, 4, and 2.

OK or NG

OK

>> Repair harness between rear blower motor resistor and the rear blower motor.

NG

>> Repair harness or connector.

2 - 3

: Continuity should exist.

2 - Ground

: Continuity should not exist.

WJIA1126E

A

B

Connector

Terminal Connector

Terminal 

Continuity

Rear blower switch 

(front): M52

Rear blower 

motor resistor: 

B133

1

Yes

Rear blower switch 

(front): M52

Rear blower 

motor resistor: 

B133

4

Yes

Rear blower switch 

(front): M52

Rear blower 

motor resistor: 

B133

2

Yes

WJIA1651E

ATC-90

TROUBLE DIAGNOSIS

2006 Pathfinder

17. 

CHECK REAR FAN SWITCH (FRONT) CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear air control connector.

3.

Check continuity between rear blower switch (front) connector
M52 (A) terminals 3, 5, 7), and 8, and rear air control connector
R208 (B) terminals 9, 6, 8, and 7.

OK or NG

OK

>> GO TO 18.

NG

>> Repair harness or connector.

18. 

CHECK REAR BLOWER SWITCH (FRONT)

Refer to 

ATC-91, "Rear Blower Switch (Front)"

 .

OK or NG

OK

>> GO TO 19.

NG

>> Replace rear blower switch (front). Refer to 

ATC-127, "FRONT AIR CONTROL"

 .

19. 

CHECK REAR BLOWER SWITCH (REAR) IN REAR AIR CONTROL

Refer to 

ATC-91, "Rear Air Control"

 .

OK or NG

OK

>> Repair harness between rear blower motor and rear blower switch (front) or rear air control.

NG

>> Replace rear air control. Refer to 

ATC-127, "REAR AIR CONTROL"

 .

20. 

CHECK CIRCUIT BETWEEN FRONT AIR CONTROL AND FUSE BLOCK (J/B) [REAR BLOWER 

MOTOR RELAY (COIL SIDE) POWER]

1.

Disconnect rear blower motor relay and fuse block (J/B) connec-
tors M3.

2.

Check continuity between rear blower motor relay harness con-
nector M163 terminal 2 and fuse block (J/B) connector M3 termi-
nal 5N.

OK or NG

OK

>> Replace rear blower motor relay.

NG

>> Repair harness or connector.

A

B

Connector

Terminal Connector

Terminal 

Continuity

Rear blower switch 

(front): M52

Rear air control: 

M208

9

Yes

Rear blower switch 

(front): M52

Rear air control: 

M208

6

Yes

Rear blower switch 

(front): M52

Rear air control: 

M208

8

Yes

Rear blower switch 

(front): M52

Rear air control: 

M208

7

Yes

WJIA1652E

Continuity should exist.

WJIA1129E

TROUBLE DIAGNOSIS

ATC-91

C

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ATC

2006 Pathfinder

COMPONENT INSPECTION
Rear Blower Motor Relay

Check circuit continuity between terminals by supplying 12 volts and
ground to coil side terminals of relays.

Rear Air Control

Check continuity between terminals at each switch position.

Rear Blower Switch (Front)

Check continuity between terminals at each switch position.

LJIA0068E

WJIA1130E

WJIA1284E

ATC-92

TROUBLE DIAGNOSIS

2006 Pathfinder

Rear Blower Motor

Check that there are no foreign particles inside the intake unit.
Apply 12 volts to terminal 1 and ground to terminal 2 and ensure that
the blower motor rotates freely and quietly.

Rear Blower Motor Resistor

Check continuity between terminals. There will be resistance, but
there should not be an open or short between any two terminals.

WJIA1268E

WJIA1269E

TROUBLE DIAGNOSIS

ATC-93

C

D

E

F

G

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A

B

ATC

2006 Pathfinder

Rear Air Control Circuit

EJS004PA

SYMPTOM:

Temperature cannot be adjusted from the rear air control.

INSPECTION FLOW

*1

ATC-55, "Operational Check (Rear)"

*2

ATC-51, "A/C System Self-diagno-
sis Function"

*3

ATC-52, "SELF-DIAGNOSIS CODE 
CHART"

*4

ATC-94, "DIAGNOSTIC PROCE-
DURE FOR REAR AIR CONTROL"

*5

ATC-69, "DIAGNOSTIC PROCE-
DURE FOR AIR MIX DOOR 
MOTOR (REAR)"

WJIA1270E

ATC-94

TROUBLE DIAGNOSIS

2006 Pathfinder

SYSTEM DESCRIPTION
Component Parts

Rear air control system components are:

Front air control

Rear air control

Air mix door motor (rear)

Rear blower motor relay

Rear blower motor resistor

Rear blower motor

System Operation

Rear Air Control

When the rear fan switch (front) (integral to the front air control) is in the REAR position the rear blower motor
speeds and the rear temperature/mode are controlled by the rear fan switch (rear) and the rear temperature
switch (rear) (both integral to the rear air control).

DIAGNOSTIC PROCEDURE FOR REAR AIR CONTROL

SYMPTOM: 

Blower motor operation is malfunctioning. Refer to 

ATC-82, "Rear Blower Motor Circuit"

 .

Temperature/mode operation is malfunctioning.

1. 

CHECK OPERATION FROM FRONT AIR CONTROL

Does rear temperature/mode operate normally from front air control?
YES or NO

YES

>>  GO TO 2.

NO

>>  Refer to 

ATC-69, "DIAGNOSTIC PROCEDURE FOR AIR MIX DOOR MOTOR (REAR)"

 .

WJIA1132E

TROUBLE DIAGNOSIS

ATC-95

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A

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ATC

2006 Pathfinder

2. 

CHECK CIRCUIT BETWEEN REAR AIR CONTROL AND FRONT AIR CONTROL FOR OPEN AND 

SHORT

1.

Turn ignition switch OFF.

2.

Disconnect front air control and rear air control connectors.

3.

Check continuity between front air control harness connector
M49 terminal 24 and rear air control harness connector M209
terminal 5.

4.

Check continuity between rear air control harness connector
M209 terminal 5 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness or connector.

3. 

CHECK CIRCUIT BETWEEN REAR AIR CONTROL AND AIR MIX DOOR MOTOR (REAR) FOR OPEN 

OR SHORT

1.

Disconnect air mix door motor (rear) connector.

2.

Check continuity between rear air control harness connector
M209 terminal 2 and 4 and air mix door motor (rear) harness
connector B155 terminal 2 and 3.

3.

Check continuity between rear air control harness connector
M209 terminals 2 and 4 and ground.

OK or NG

OK

>> Replace rear air control. Refer to 

ATC-127, "REAR AIR CONTROL"

 .

NG

>> Repair harness or connector.

24 - 5

Continuity should exist.

5 - Ground

Continuity should not exist.

WJIA1133E

2 - 2

Continuity should exist.

4 - 3

Continuity should exist.

2, 4 - Ground

Continuity should not exist.

WJIA1271E

ATC-96

TROUBLE DIAGNOSIS

2006 Pathfinder

Magnet Clutch Circuit

EJS004PB

SYMPTOM: Magnet clutch does not engage.

INSPECTION FLOW

*1

.

ATC-53, "Operational Check 

(Front)"

*2

ATC-51, "A/C System Self-diagnosis 
Function"

*3

ATC-52, "SELF-DIAGNOSIS CODE 
CHART"

*4

ATC-117, "Ambient Sensor 1 Circuit"

*5

ATC-125, "Intake Sensor Circuit"

WJIA1285E

 

 

 

 

 

 

 

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