Nissan Pathfinder (2005 year). Instruction — part 427
TROUBLE DIAGNOSIS
TF-35
[ATX14B]
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TF
2005 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-53, "SELF-DIAGNOSTIC PROCEDURE (WITH CON-
(with CONSULT-II) or
TF-53, "SELF-DIAGNOSTIC PROCEDURE (WITHOUT CON-
(without CONSULT-II).
NO
>> Go to
TF-125, "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 4.
NO
>> GO TO
TF-125, "4WD Shift Indicator Lamp or 4LO Indi-
.
4.
CHECK ATP WARNING LAMP
1.
Move the A/T selector lever to “P” position.
2.
Set 4WD shift switch from “4HI” to "4LO".
While switching from "4HI" to "4LO", does 4WD shift indicator lamp turn OFF and ATP warning lamp turn ON?
YES
>> GO TO
TF-127, "ATP Warning Lamp Turns ON"
.
NO
>> GO TO 5.
5.
CHECK "WAIT" FUNCTION
1.
Set 4WD shift switch from “4LO” to "4H".
2.
Check 4LO indicator lamp state.
NOTE:
While “wait” function is operating, 4LO indicator lamp flashes.
Does 4LO indicator lamp flicker?
YES
>> GO TO
TF-129, "4LO Indicator Lamp Repeats Flashing"
.
NO
>>
WDIA0136E
TF-36
[ATX14B]
TROUBLE DIAGNOSIS
2005 Pathfinder
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-53, "SELF-DIAGNOSTIC PROCEDURE (WITH CON-
(with CONSULT-II) or
TF-53, "SELF-DIAGNOSTIC PROCEDURE (WITHOUT CON-
(without CONSULT-II).
Flash rapidly>>GO TO
TF-130, "4WD Warning Lamp Flashes Rapidly"
.
Flash slowly>>GO TO
TF-131, "4WD Warning Lamp Flashes Slowly"
.
NO
>> GO TO 2.
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-132, "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-133, "4WD System Does Not Operate"
.
Trouble Diagnosis Chart for Symptoms
EDS001J6
If 4WD warning lamp turns ON, perform self-diagnosis. Refer to
TF-53, "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
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
Transfer shut off relay
Combination meter
TROUBLE DIAGNOSIS
TF-37
[ATX14B]
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2005 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.
4WD shift indicator lamp or 4LO indicator
lamp does not change
Engine running
4WD shift switch
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
4WD shift switch
PNP switch signal
ATP switch
Combination meter
Transfer inner parts
4LO indicator lamp repeats flashing
Engine running
Wait detection switch
Neutral-4LO switch
Transfer inner parts
4WD warning lamp flashes rapidly (2 times/
second)
While driving
Transfer fluid temperature
Tire size is different between front and
rear of vehicle
4WD warning lamp flashes slowly
(1 time/2 seconds)
While driving
Tire size is different between front and
rear of vehicle.
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
4WD shift switch
Accelerator pedal position signal
Clutch pressure solenoid
Transfer inner parts
4WD system does not operate
While driving
4WD shift switch
Clutch pressure switch
Transfer inner parts
Symptom
Condition
Check item
Reference page
TF-38
[ATX14B]
TROUBLE DIAGNOSIS
2005 Pathfinder
Transfer Control Unit Input/Output Signal Reference Values
EDS001J7
TRANSFER CONTROL UNIT INSPECTION TABLE
Specifications with CONSULT-II
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
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
TROUBLE DIAGNOSIS
TF-39
[ATX14B]
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TF
2005 Pathfinder
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.)
OFF
→
ON
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
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
Monitored item [Unit]
Content
Condition
Display value
TF-40
[ATX14B]
TROUBLE DIAGNOSIS
2005 Pathfinder
VHLC/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
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
Monitored item [Unit]
Content
Condition
Display value
TROUBLE DIAGNOSIS
TF-41
[ATX14B]
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TF
2005 Pathfinder
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
ATP IND [ON/OFF]
Condition of ATP indica-
tor lamp
ATP indicator lamp: ON
ON
ATP indicator lamp: OFF
OFF
SHIFT POS SW1 [ON/
OFF]
Condition of actuator
position switch 1
(Low)
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N” posi-
tion
●
Brake pedal depressed
4WD shift switch: 4LO
ON
4WD shift switch: 2WD,
AUTO or 4H
OFF
SHIFT POS SW2 [ON/
OFF]
Condition of actuator
position switch 2
(High)
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N” posi-
tion
●
Brake pedal depressed
4WD shift switch: 4H,
AUTO or 2WD
ON
4WD shift switch: 4LO
OFF
SHIFT ACT1 [ON/OFF]
Output condition to actu-
ator motor (High)
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N” posi-
tion
●
Brake pedal depressed
4WD shift switch: 4H to
4LO (“Wait” function is
operating.)
ON
Except the above
OFF
SHIFT AC MON1 [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: 4H to
4LO (“Wait” function is
operating.)
ON
Except the above
OFF
Monitored item [Unit]
Content
Condition
Display value
TF-42
[ATX14B]
TROUBLE DIAGNOSIS
2005 Pathfinder
Specifications Between Transfer Control Unit Terminals
TRANSFER CONTROL UNIT TERMINAL CONNECTOR LAYOUT
NOTE:
Data are reference value and are measured between each terminal and ground.
SHIFT ACT2 [ON/OFF]
Output condition to actu-
ator motor (Low)
●
Vehicle stopped
●
Engine running
●
A/T selector lever “N” posi-
tion
●
Brake pedal depressed
4WD shift switch: 4LO to
4H (“Wait” function is
operating.)
ON
Except the above
OFF
SHIFT AC MON2 [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: 4LO to
4H (“Wait” function is
operating.)
ON
Except the above
OFF
T/F F SPEED [km/h] or
[mph]
Displayed, but do not use.
A/T R SPEED [km/h] or
[mph]
Condition of vehicle
speed sensor A/T (Revo-
lution sensor)
During driving
Approximately
matches the out-
put shaft speed.
AT GEAR POSI [1/2/3/4/
5]
Condition of A/T selec-
tor lever position
Displays actual A/T gear position.
1
2
3
4
5
Monitored item [Unit]
Content
Condition
Display value
WDIA0139E
Terminal
Wire
color
Item
Condition
Data (Approx.)
1
GR
2-4WD shift solenoid valve
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“N” position
●
Brake pedal
depressed
4WD shift switch: 2WD
0V
4WD shift switch: AUTO, 4H or 4LO
Battery voltage
2
V
4WD shift indicator lamp
(2WD indicator lamp)
2WD indicator lamp: OFF
Battery voltage
2WD indicator lamp: ON
0V
3
B
Ground
Always
0V
4
SB
Transfer shift high relay
●
Vehicle stopped
●
Engine running
●
A/T selector lever
“N” position
●
Brake pedal
depressed
4WD shift switch: 4H to 4LO (“Wait” func-
tion is operating.)
Battery voltage
Except the above
0V
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