Nissan Pathfinder (2007 year). Manual - part 394

TROUBLE DIAGNOSIS

TF-33

[ATX14B]

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2007 Pathfinder

BDWA0163E

TF-34

[ATX14B]

TROUBLE DIAGNOSIS

2007 Pathfinder

Inspections Before Trouble Diagnosis

EDS00369

TRANSFER FLUID CHECK

Check fluid for leaks and fluid level. Refer to 

TF-13, "Inspection"

 .

PREPARATION FOR ROAD TEST

●

The purpose of the test is to determine overall performance of
transfer and analyze causes of problems.

●

When a malfunction is found in any part of transfer, perform the
road test to locate the malfunction area and repair the malfunc-
tion parts.

●

The road test consists of the following three parts.

–

Check before engine is started. Refer to 

TF-34, "CHECK

BEFORE ENGINE IS STARTED"

 .

–

Check at idle. Refer to 

TF-34, "CHECK AT IDLE"

 .

–

Cruise test. Refer to 

TF-35, "CRUISE TEST"

 .

CHECK BEFORE ENGINE IS STARTED

1. 

CHECK 4WD SHIFT INDICATOR LAMP

1.

Park vehicle on flat surface.

2.

Turn ignition switch to “OFF” position.

3.

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

4.

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

5.

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

Does 4WD shift indicator lamp turn ON for approximately 1 second?

YES

>> GO TO 2.

NO

>> Go to 

TF-118, "4WD Shift Indicator Lamp and 4LO Indicator Lamp Do Not Turn ON"

 .

2. 

CHECK 4WD WARNING LAMP

1.

Turn ignition switch to “OFF” position.

2.

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

3.

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

4.

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

Does 4WD warning lamp turn ON?

YES

>> GO TO 

TF-34, "CHECK AT IDLE"

 .

NO

>> GO TO 

TF-121, "4WD Warning Lamp Does Not Turn ON"

 .

CHECK AT IDLE

1. 

CHECK 4WD SHIFT INDICATOR LAMP

1.

Park vehicle on flat surface and engage the parking brake.

2.

Turn ignition switch to “OFF” position.

3.

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

4.

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

5.

Start engine.

Does 4WD shift indicator lamp turn ON?

YES

>> GO TO 3.

NO

>> GO TO 2.

SMT089D

TROUBLE DIAGNOSIS

TF-35

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2007 Pathfinder

2. 

CHECK 4WD WARNING LAMP 

Check 4WD warning lamp state.

Is 4WD warning lamp turned ON?

YES

>> Perform the self-diagnosis. Refer to 

TF-52, "SELF-DIAGNOSTIC PROCEDURE (WITH CON-

SULT-II)"

  (with CONSULT-II) or 

TF-52, "SELF-DIAGNOSTIC PROCEDURE (WITHOUT CON-

SULT-II)"

  (without CONSULT-II).

NO

>> Go to 

TF-123, "4WD Shift Indicator Lamp or 4LO Indicator Lamp Does Not Change"

 .

3. 

CHECK 4WD SHIFT INDICATOR AND 4LO INDICATOR OPERATION

1.

Brake pedal depressed.

2.

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

3.

Set 4WD shift switch to “2WD”, “AUTO”, “4H”, “4LO”, “4H”,
“AUTO” and “2WD” in order. (Stay at each switch position for at
least 1 second.)

Do 4WD shift indicator and 4LO indicator lamps change properly?
Does buzzer sound?

YES

>> GO TO 

TF-35, "CRUISE TEST"

 .

NO

>> GO TO 

TF-123, "4WD Shift Indicator Lamp or 4LO Indi-

cator Lamp Does Not Change"

 .

CRUISE TEST

1. 

CHECK INPUT SIGNAL

1.

Warm up engine to normal operating temperature.

2.

Park vehicle on flat surface.

3.

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

4.

Set 4WD shift switch to “AUTO” position.

5.

Start engine.

6.

Drive vehicle for at least 30 seconds at a speed higher than 20 km/h (12 MPH).

Is 4WD warning lamp turned ON?

On steady>>Perform the self-diagnosis. Refer to 

TF-52, "SELF-DIAGNOSTIC PROCEDURE (WITH CON-

SULT-II)"

  (with CONSULT-II) or 

TF-52, "SELF-DIAGNOSTIC PROCEDURE (WITHOUT CON-

SULT-II)"

  (without CONSULT-II).

Flash rapidly>>GO TO 

TF-128, "4WD Warning Lamp Flashes Rapidly"

 .

Flash slowly>>GO TO 

TF-129, "4WD Warning Lamp Flashes Slowly"

 .

NO

>> GO TO 2.

WDIA0136E

TF-36

[ATX14B]

TROUBLE DIAGNOSIS

2007 Pathfinder

2. 

CHECK TIGHT CORNER BRAKING SYMPTOM (1)

1.

Set 4WD shift switch to “AUTO” position.

2.

Drive vehicle at speed lower than 20 km/h (12 MPH) with steering wheel fully turned.

Does tight corner braking symptom occur?

YES

>> GO TO 

TF-130, "Heavy Tight-corner Braking Symptom Occurs"

 .

NO

>> GO TO 3.

3. 

CHECK TIGHT CORNER BRAKING SYMPTOM (2)

1.

Set 4WD shift switch to “4HI” position.

2.

Drive vehicle at speed lower than 20 km/h (12 MPH) with steering wheel fully turned.

Does tight corner braking symptom occur?

YES

>> Inspection End.

NO

>> GO TO 

TF-131, "4WD System Does Not Operate"

 .

Trouble Diagnosis Chart for Symptoms

EDS0036A

If 4WD warning lamp turns ON, perform self-diagnosis. Refer to 

TF-52, "Self-diagnostic Procedure"

 .

Symptom

Condition

Check item

Reference page

4WD shift indicator lamp and 4LO indicator 
lamp do not turn ON
(4WD shift indicator lamp and 4LO indicator 
lamp check)

Ignition switch: ON

Power supply and ground for transfer 
control unit

TF-118

Transfer shut off relay

Combination meter

4WD warning lamp does not turn ON
(4WD warning lamp check)

Ignition switch: ON

Power supply and ground for transfer 
control unit

TF-121

Transfer shut off relay

Combination meter

4WD shift indicator lamp or 4LO indicator 
lamp does not change

Engine running

4WD shift switch

TF-123

Wait detection switch

Neutral-4LO switch

ATP switch

2-4WD solenoid

Transfer control device

Actuator motor

Actuator position switch

Transfer inner parts

ATP warning lamp turns ON

Engine running

CAN communication line

TF-125

4WD shift switch

PNP switch signal

ATP switch

Combination meter

Transfer inner parts

4LO indicator lamp repeats flashing

Engine running

Wait detection switch

TF-127

Neutral-4LO switch

Transfer inner parts

4WD warning lamp flashes rapidly (2 times/
second)

While driving

Transfer fluid temperature

TF-128

Tire size is different between front and 
rear of vehicle

TROUBLE DIAGNOSIS

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2007 Pathfinder

NOTE:

●

Light tight-corner braking symptom may occur depending on driving conditions in AUTO mode.  This is not
a malfunction.

●

Heavy tight-corner braking symptom occurs when vehicle is driven in the following conditions: 4WD shift
switch is "4H" or "4LO", steering wheel is turned fully to either side.

Transfer Control Unit Input/Output Signal Reference Values

EDS0036B

TRANSFER CONTROL UNIT INSPECTION TABLE
Specifications with CONSULT-II

4WD warning lamp flashes slowly
(1 time/2 seconds)

While driving

Tire size is different between front and 
rear of vehicle.

TF-129

Transfer fluid temperature

Clutch pressure switch

Heavy tight-corner braking symptom occurs
(See NOTE.)

●

While driving

●

AUTO mode

●

Steering wheel is 
turned fully to either 
side

CAN communication line

TF-130

4WD shift switch

Accelerator pedal position signal

Clutch pressure solenoid

Transfer inner parts

4WD system does not operate

While driving

4WD shift switch

TF-131

Clutch pressure switch

Transfer inner parts

Symptom

Condition

Check item

Reference page

Monitored item [Unit]

Content

Condition

Display value

VHCL/S SEN·FR [km/h] 
or [mph]

Wheel speed (Front 
wheel)

Vehicle stopped

0 km/h (0 mph)

Vehicle running

CAUTION:

Check air pressure of tire under standard condition.

Approximately 
equal to the indi-
cation on speed-
ometer (Inside of 

±

10%)

VHCL/S SEN·RR [km/h] 
or [mph]

Wheel speed (Rear 
wheel)

Vehicle stopped

0 km/h (0 mph)

Vehicle running

CAUTION:

Check air pressure of tire under standard condition.

Approximately 
equal to the indi-
cation on speed-
ometer (Inside of 

±

10%)

ENGINE SPEED [rpm]

Engine speed

Engine stopped
(Engine speed: Less than 400 rpm)

0 rpm

Engine running
(Engine speed: 400 rpm or more)

Approximately 
equal to the indi-
cation on tachom-
eter

THRTL POS SEN [V]

Accelertor pedal posi-
tion (APP) sensor signal 
voltage

Accelerator pedal: Released

Approx. 0.5V

Accelerator pedal: Fully depressed

Approx. 4.0V

FLUID TEMP SE [V]

Transfer fluid tempera-
ture signal voltage

Transfer fluid temperature approx. 20 - 80

°

C (68 - 176

°

F)

Approx. 1.1 - 0.3V

BATTERY VOLT [V]

Power supply voltage for 
transfer control unit

Ignition switch: ON

Battery voltage

2WD SWITCH [ON/OFF]

Input condition from 
4WD shift switch

4WD shift switch: 2WD

ON

4WD shift switch: AUTO, 4H or 4LO

OFF

AUTO SWITCH [ON/
OFF]

Input condition from 
4WD shift switch

4WD shift switch: AUTO

ON

4WD shift switch: 2WD, 4H or 4LO

OFF

TF-38

[ATX14B]

TROUBLE DIAGNOSIS

2007 Pathfinder

LOCK SWITCH [ON/
OFF]

Input condition from 
4WD shift switch

4WD shift switch: 4H

ON

4WD shift switch: 2WD, AUTO or 4LO

OFF

4L SWITCH [ON/OFF]

Input condition from 
4WD shift switch

4WD shift switch: 4LO

ON

4WD shift switch: 2WD, AUTO or 4H

OFF

N POSI SW TF [ON/
OFF]

Condition of neutral-4LO 
switch

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N” posi-
tion

●

Brake pedal depressed

4WD shift switch: 2WD, 
AUTO or 4H

OFF

4WD shift switch: 4H to 
4LO (While actuator 
motor is operating.)

OFF

→

ON

4WD shift switch: 4LO to 
4H (While actuator motor 
is operating.)

ON

→

OFF

4WD shift switch: 4LO

ON

ATP SWITCH [ON/OFF]

Condition of ATP switch

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N” posi-
tion

●

Brake pedal depressed

4WD shift switch
: 4H to 4LO or 4LO to 4H
(While actuator motor is 
operating.)

 ON

Except the above

OFF

WAIT DETCT SW [ON/
OFF]

Condition of wait detec-
tion switch

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N” posi-
tion

●

Brake pedal depressed

4WD shift switch: 2WD, 
AUTO or 4H

OFF

4WD shift switch: 4H to 
4LO (While actuator 
motor is operating.)

OFF

→

ON

4WD shift switch: 4LO to 
4H (While actuator motor 
is operating.)

ON

→

OFF

4WD shift switch: 4LO

ON

LINE PRES SW [ON/
OFF]

Condition of line pres-
sure switch

●

A/T selector lever “D” position

●

4WD shift switch: AUTO

ON

●

Except the above

●

The vehicle has been left 
at room temperature for 5 
minutes and more with 
ignition switch in “OFF” 
position.

●

Ignition switch: ON

●

A/T selector lever: “P” 
or "N" position

●

4WD shift switch: other 
than AUTO

OFF

CL PRES SW [ON / 
OFF]

Condition of clutch pres-
sure switch

●

Vehicle stopped

●

Engine running

●

A/T selector lever “D” position

●

4WD shift switch: AUTO or 4H (“Wait” function is not 
operating.)

ON

●

Vehicle stopped

●

Engine running

●

4WD shift switch: 2WD (“Wait” function is not operat-
ing.)

OFF

N POSI SW AT [ON/
OFF]

Input condition from A/T 
PNP switch

●

Vehicle stopped

●

Engine running

●

Brake pedal depressed

A/T selector lever posi-
tion: N

ON

Except the above

OFF

R POSI SW AT [ON/
OFF]

Input condition from A/T 
PNP switch

●

Vehicle stopped

●

Engine running

●

Brake pedal depressed

A/T selector lever posi-
tion: R

ON

Except the above

OFF

Monitored item [Unit]

Content

Condition

Display value

TROUBLE DIAGNOSIS

TF-39

[ATX14B]

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2007 Pathfinder

P POSI SW AT [ON/
OFF]

Input condition from A/T 
PNP switch

●

Vehicle stopped

●

Engine running

●

Brake pedal depressed

A/T selector lever posi-
tion: P

ON

Except the above

OFF

ABS OPER SW [ON/
OFF]

Condition of ABS operat-
ing

ABS is operating.

ON

ABS is not operating.

OFF

VDC OPER SW [ON/
OFF]

Condition of VDC operat-
ing

VDC is operating.

ON

VDC is not operating.

OFF

TCS OPER SW [ON/
OFF]

Condition of TCS operat-
ing

TCS is operating.

ON

TCS is not operating.

OFF

THROTTLE POSI [0.0/8]

Condition of throttle 
opening

When depressing accelerator pedal
(Value rises gradually in response to throttle position.)

0.0/8 - 8.0/8

4WD MODE [AUTO/
LOCK/2WD/4L]

Control status of 4WD
(Output condition of 
4WD shift indicator lamp 
and 4LO indicator lamp)

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N” posi-
tion

●

Brake pedal depressed

4WD shift switch: 2WD

2WD

4WD shift switch: AUTO

AUTO

4WD shift switch: 4H

LOCK

4WD shift switch: 4LO

4L

VHCL/S COMP [km/h] or 
[mph]

Vehicle speed

Vehicle stopped

0 km/h (0 mph)

Vehicle running

CAUTION:

Check air pressure of tire under standard condition.

Approximately 
equal to the indi-
cation on speed-
ometer (Inside of 

±

10%)

COMP CL TORQ [kgm]

Condition of control 
torque

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N” posi-
tion

●

Brake pedal depressed

4WD shift switch: 2WD

0 kg-m

4WD shift switch: AUTO

39 - 1,353 N·m

(4 - 138 kg-m, 29 - 

998 ft-lb)

4WD shift switch: 4H or 
4LO

1,353 N·m

(138 kg-m, 998 ft-

lb)

DUTY SOLENOID [%]

Condition of clutch pres-
sure solenoid

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N” posi-
tion

●

Brake pedal depressed

4WD shift switch: 2WD

4%

4WD shift switch: AUTO

96 - 4%

4WD shift switch: 4H or 
4LO

4%

2-4WD SOL [ON/OFF]

Condition of 2-4WD shift 
solenoid valve

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N” posi-
tion

●

Brake pedal depressed

4WD shift switch: 2WD

OFF

4WD shift switch: AUTO

ON

4WD shift switch: 4H

4WD shift switch: 4LO

4WD shift switch: AUTO 
(“Wait” function is operat-
ing.)

OFF

4WD shift switch: 4H 
(“Wait” function is operat-
ing.)

OFF

Monitored item [Unit]

Content

Condition

Display value

TF-40

[ATX14B]

TROUBLE DIAGNOSIS

2007 Pathfinder

2-4WD SOL MON [ON/
OFF]

Check signal for transfer 
control unit signal output

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N” posi-
tion

●

Brake pedal depressed

4WD shift switch: 2WD

OFF

4WD shift switch: AUTO

ON

4WD shift switch: 4H

4WD shift switch: 4LO

4WD shift switch: AUTO 
(“Wait” function is operat-
ing.)

OFF

4WD shift switch: 4H 
(“Wait” function is operat-
ing.)

OFF

MOTOR RELAY [ON/
OFF]

Condition of transfer 
motor relay

●

Accelerator pedal 
depressed

●

Vehicle stopped

●

Engine running

●

Brake pedal depressed

4WD shift switch: 2WD

OFF

4WD shift switch: AUTO 
or 4LO (A/T selector lever 
“P” or “N” position)

OFF

("ON" for approx. 2 

sec. after shifting 

to “P” and “N”.)

4WD shift switch: AUTO 
or 4LO (Except for A/T 
selector lever “P” or “N” 
position)

ON

4WD shift switch: 4H (A/T 
selector lever “P” posi-
tion)

OFF

("ON" for approx. 2 

sec. after shifting 

to “P”.)

4WD shift switch: 4H 
(Except for A/T selector 
lever “P” position)

ON

MOTOR RELAY MON 
[ON/OFF]

Check signal for transfer 
control unit signal output

●

Accelerator pedal 
depressed

●

Vehicle stopped

●

Engine running

●

Brake pedal depressed

4WD shift switch: 2WD

OFF

4WD shift switch: AUTO 
or 4LO (A/T selector lever 
“P” or “N” position)

OFF

("ON" for approx. 2 

sec. after shifting 

to “P” and “N”.)

4WD shift switch: AUTO 
or 4LO (Except for A/T 
selector lever “P” or “N” 
position)

ON

4WD shift switch: 4H (A/T 
selector lever “P” posi-
tion)

OFF

("ON" for approx. 2 

sec. after shifting 

to “P”.)

4WD shift switch: 4H 
(Except for A/T selector 
lever “P” position)

ON

4WD FAIL LAMP [ON/
OFF]

Condition of 4WD warn-
ing lamp

4WD warning lamp: ON

ON

4WD warning lamp: OFF

OFF

2WD IND [ON/OFF]

Condition of 4WD shift 
indicator lamp (2WD 
indicator lamp)

2WD indicator lamp of 4WD shift indicator lamp: OFF

OFF

2WD indicator lamp of 4WD shift indicator lamp: ON

ON

AUTO IND [ON/OFF]

Condition of 4WD shift 
indicator lamp (AUTO 
indicator lamp)

AUTO indicator lamp of 4WD shift indicator lamp: OFF

OFF

AUTO indicator lamp of 4WD shift indicator lamp: ON

ON

LOCK IND [ON/OFF]

Condition of 4WD shift 
indicator lamp (Lock indi-
cator lamp)

Lock indicator lamp of 4WD shift indicator lamp: OFF

OFF

Lock indicator lamp of 4WD shift indicator lamp: ON

ON

4L IND [ON/OFF]

Condition of 4LO indica-
tor lamp condition

4LO indicator lamp: OFF

OFF

4LO indicator lamp: ON

ON

Monitored item [Unit]

Content

Condition

Display value