Nissan Pathfinder (2009 year). Manual — part 214

DLN-194

< FUNCTION DIAGNOSIS >

[TRANSFER: TX15B]

4WD SYSTEM

Component Parts Location

INFOID:0000000003937317

1.

Fuse and relay box
A: Transfer shut off relay 1 E156
B: Transfer shift high relay E44
C: Transfer shift low relay E43
D: Transfer shut off relay 2 E157

2.

A: ATP switch F71
B: 4 LO switch F74
(View with front propeller shaft re-
moved.)

3.

Wait detection switch F73

WDIA0337E

2009 Pathfinder

4WD SYSTEM

DLN-195

< FUNCTION DIAGNOSIS >

[TRANSFER: TX15B]

C

E

F

G

H

I

J

K

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M

A

B

DLN

N

O

P

CAN Communication

INFOID:0000000003937318

Refer to

LAN-65, "DTC Index"

.

Cross-Sectional View

INFOID:0000000003937319

4.

Transfer control device F72

5.

Transfer control unit M165, M166
(View with lower instrument cover re-
moved.)

6.

Combination meter M24
A: 4WD warning lamp
B: 4LO indicator lamp
C: 4WD shift indicator lamp
D: ATP warning lamp

7.

4WD shift switch M138

1.

Mainshaft

2.

Rear case

3.

Oil pump assembly

4.

Clutch gear

5.

2-4 shift fork

6.

2-4 sleeve

7.

Drive chain

8.

Sprocket

9.

L-H shift fork

10. L-H sleeve

11.

Internal gear

12. Front case

13. Planetary carrier assembly

14. Sun gear assembly

15. L-H shift rod

16. Control shift rod

17. Companion flange

18. Front drive shaft

19. Transfer control device

WDIA0222E

2009 Pathfinder

DLN-196

< FUNCTION DIAGNOSIS >

[TRANSFER: TX15B]

4WD SYSTEM

Power Transfer

INFOID:0000000003937320

POWER TRANSFER DIAGRAM

POWER TRANSFER FLOW

1.

Mainshaft

2.

Clutch gear

3.

2-4 sleeve

4.

Drive chain

5.

Sprocket

6.

L-H sleeve

7.

Planetary carrier assembly

8.

Sun gear assembly

9.

Front drive shaft

WDIA0223E

2009 Pathfinder

4WD SYSTEM

DLN-197

< FUNCTION DIAGNOSIS >

[TRANSFER: TX15B]

C

E

F

G

H

I

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M

A

B

DLN

N

O

P

SDIA2213E

2009 Pathfinder

D

L

N

- 1

9

8

< FUNCTION DIAGNOSIS >

[TRANSFER: TX15B]

DIAGNOSIS SYSTEM (TRANSFER CONTROL UNIT)

DIAGNOSIS SYSTEM (TRANSFER CONTROL UNIT)

CONSULT-III Function (ALL MODE AWD/4WD)

INFOID:0000000003937321

FUNCTION

CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.

SELF-DIAG RESULT MODE

Operation Procedure

1.

Connect “CONSULT-III”.

2.

With engine at idle, touch “SELF-DIAG RESULTS”.
Display shows malfunction experienced since the last erasing operation.

NOTE:
The details for "TIME" are as follows:
• "0": Error currently detected with transfer control unit.
• Except for "0": Error detected in the past and memorized with transfer control unit.

Detects frequency of driving after DTC occurs (frequency of turning ignition switch "ON/OFF").

How to Erase Self-diagnostic Results

1.

Perform applicable inspection of malfunctioning item and then repair or replace.

2.

Start engine and select “SELF-DIAG RESULTS” mode for “ALL MODE AWD/4WD” with CONSULT-III.

3.

Touch “ERASE” on CONSULT-III screen to erase DTC memory.

CAUTION:

If memory cannot be erased, perform applicable diagnosis.

SELF-DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-III)

Description

If the engine starts when there is something wrong with the 4WD system, the 4WD warning lamp turns ON or
flickers in the combination meter. When the system functions properly, the warning lamp turns ON when the
ignition switch is turned to “ON”, and it turns OFF after engine starts. To locate the cause of a problem, start
the self-diagnosis function. The 4WD warning lamp in the combination meter will indicate the problem area by
flickering according to the self-diagnostic results. Refer to

DLN-245, "DTC Index"

.

Diagnostic Procedure

1.

Warn up engine.

2.

Turn ignition switch “ON” and “OFF” at least twice, and then turn ignition switch “OFF”.

3.

Move A/T selector lever to “P” position.

4.

Turn 4WD shift switch to “2WD” position.

5.

Turn ignition switch “ON”. (Do not start engine.)

6.

4WD warning lamp ON.
If 4WD warning lamp does not turn ON, refer to

DLN-249, "Diagnosis Procedure"

.

7.

Move A/T selector lever to “R” position.

8.

Turn 4WD shift switch to “2WD”, “4H” and “2WD” in order.

9.

Move A/T selector lever to “P” position.

10. Turn 4WD shift switch to “4H”, “2WD” and “4H” in order.
11. Move A/T selector lever to “N” position.

12. Turn 4WD shift switch to “2WD” position.

13. Move A/T selector lever to “P” position.

ALL MODE AWD/4WD diagnostic mode

Description

SELF-DIAG RESULTS

Displays transfer control unit self-diagnosis results.

DATA MONITOR

Displays transfer control unit input/output data in real time.

CAN DIAG SUPPORT MNTR

The results of transmit/receive diagnosis of CAN communication can be read.

ECU PART NUMBER

Transfer control unit part number can be read.

2009 Pathfinder

DIAGNOSIS SYSTEM (TRANSFER CONTROL UNIT)

DLN-199

< FUNCTION DIAGNOSIS >

[TRANSFER: TX15B]

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E

F

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B

DLN

N

O

P

14. Read the flickering of 4WD warning lamp.

Self-diagnosis example

DATA MONITOR MODE

Operation Procedure

1.

Connect “CONSULT-III.”

2.

Touch “DATA MONITOR”.

3.

Select from “SELECT MONITOR ITEM”, screen of data monitor mode is displayed.
NOTE:
When malfunction is detected, CONSULT-III performs REAL-TIME DIAGNOSIS.
Also, any malfunction detected while in this mode will be displayed at real time.

Display Item List

×

: Standard

–: Not applicable

PDIA0227E

Monitored item (Unit)

Monitor item selection

Remarks

ECU INPUT

SIGNALS

MAIN

SIGNALS

SELECTION

FROM MENU

VHCL/S SEN·FR [km/h] or [mph]

×

–

×

Wheel speed calculated by ABS actuator
and electric unit (control unit).
Signal input with CAN communication line.

VHCL/S SEN·RR [km/h] or [mph]

×

–

×

Wheel speed calculated by TCM.
Signal input with CAN communication line.

ENGINE SPEED [rpm]

×

–

×

Engine speed is displayed.
Signal input with CAN communication line.

BATTERY VOLT [V]

×

–

×

Power supply voltage for transfer control
unit.

2WD SWITCH [ON/OFF]

×

–

×

4WD shift switch signal status is displayed.
(4L means 4LO of 4WD shift switch.)

4H SWITCH [ON/OFF]

×

–

×

4L SWITCH [ON/OFF]

×

–

×

4L POSI SW [ON/OFF]

×

–

×

4LO switch signal status is displayed.

ATP SWITCH [ON/OFF]

×

–

×

ATP switch signal status is displayed.

WAIT DETCT SW [ON/OFF]

×

–

×

Wait detection switch signal status is dis-
played.

4WD MODE [2H/4H/4L]

–

×

×

Control status of 4WD recognized by trans-
fer control unit. (2WD, 4H or 4LO)

VHCL/S COMP [km/h] or [mph]

–

×

×

Vehicle speed recognized by transfer con-
trol unit.

SHIFT ACT 1 [ON/OFF]

–

×

×

Output condition to actuator motor (clock-
wise)

SHIFT AC MON 1 [ON/OFF]

–

–

×

Check signal for transfer control unit signal
output

SHIFT ACT 2 [ON/OFF]

–

×

×

Output condition to actuator motor (coun-
terclockwise)

2009 Pathfinder

DLN-200

< FUNCTION DIAGNOSIS >

[TRANSFER: TX15B]

DIAGNOSIS SYSTEM (TRANSFER CONTROL UNIT)

SHIFT AC MON 2 [ON/OFF]

–

–

×

Check signal for transfer control unit signal
output

SFT ACT/R MON [ON/OFF]

–

–

×

Operating condition of actuator motor relay
(integrated in transfer control unit)

SHIFT POS SW 1 [ON/OFF]

×

–

×

Condition of actuator position switch 1

SHIFT POS SW 2 [ON/OFF]

×

–

×

Condition of actuator position switch 2

SHIFT POS SW 3 [ON/OFF]

×

–

×

Condition of actuator position switch 3

SHIFT POS SW 4 [ON/OFF]

×

–

×

Condition of actuator position switch 4

4WD FAIL LAMP [ON/OFF]

–

×

×

Control status of 4WD warning lamp is dis-
played.

2WD IND [ON/OFF]

–

–

×

Control status of 4WD shift indicator lamp
(rear) is displayed.

4H IND [ON/OFF]

–

–

×

Control status of 4WD shift indicator lamp
(front and center) is displayed.

4L IND [ON/OFF]

–

–

×

Control status of 4LO indicator lamp is dis-
played.

Monitored item (Unit)

Monitor item selection

Remarks

ECU INPUT

SIGNALS

MAIN

SIGNALS

SELECTION

FROM MENU

2009 Pathfinder

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

DLN-201

< FUNCTION DIAGNOSIS >

[TRANSFER: TX15B]

C

E

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B

DLN

N

O

P

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

INFOID:0000000003937322

Use the chart below to help you find the cause of the symptom. The numbers indicate the order of the inspec-
tion. If necessary, repair or replace these parts.

Reference page

DLN-270

DLN-281

DLN-303

DLN-281

DLN-297

SUSPECTED PARTS
(Possible cause)

T

R

ANSFER F

L

UID (Level

low)

T

R

ANSFER F

L

UID (W

rong)

T

R

ANSFER F

L

UID (Level

too high)

LI

QUI

D

GASKET

(Dam

ag

ed

)

O-RI

NG (W

orn

or da

ma

ge

d)

OIL

SEAL

(W

orn

or da

ma

ge

d)

S

H

IFT

FORK

(W

orn

or d

a

m

a

ged

)

GEAR (W

orn

o

r da

ma

ge

d)

B

EARING (W

orn

or

da

ma

ge

d)

Symptom

Noise

1

2

3

3

Transfer fluid leakage

3

1

2

2

2

Hard to shift or will not shift

1

1

2

2009 Pathfinder