Nissan Pathfinder. Manual — part 406
DLN-66
< SYMPTOM DIAGNOSIS >
[TRANSFER: TY21C]
VEHICLE DOES NOT ENTER 4WD MODE
VEHICLE DOES NOT ENTER 4WD MODE
Description
INFOID:0000000009177761
Vehicle does not enter 4-wheel drive mode even though 4WD warning indicator is not displayed.
Diagnosis Procedure
INFOID:0000000009177762
1.
CHECK 4WD WARNING ICON/DISPLAY
Perform the trouble diagnosis of the 4WD warning icon/display. Refer to
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace the error-detected parts.
2.
CHECK PARKING BRAKE SWITCH SIGNAL
With CONSULT
Check “P BRAKE SW” of CONSULT “DATA MONITOR” for “ALL MODE AWD/4WD”.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Proceed to
DLN-53, "Component Inspection"
3.
CRUISE TEST
Drive the vehicle for a period of time.
Does any symptom occur?
YES
>> Replace electric controlled coupling for mechanical malfunction (mechanical engagement of
clutch is not possible). Refer to
DLN-121, "Removal and Installation"
NO
>> Check each harness connector pin terminal for disconnection.
Monitor Item
Condition
Status
P BRAKE SW
When the parking brake pedal is operation.
On
When the parking brake pedal is not operation.
Off
4WD HIGH TEMP IS DISPLAYED ON INFORMATION DISPLAY
DLN-67
< SYMPTOM DIAGNOSIS >
[TRANSFER: TY21C]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
4WD HIGH TEMP IS DISPLAYED ON INFORMATION DISPLAY
Description
INFOID:0000000009177763
While driving, 4WD warning indicator is quickly blinked on information display and it turns OFF after 1 minute.
• This symptom protects drivetrain parts when a heavy load is applied to the electric controlled coupling and
multiple disc clutch temperature increases. Also, optional distribution of torque sometimes becomes rigid
before lamp blinks quickly. Both cases are not malfunction. Refer to
• When this symptom occurs, stop vehicle and allow it to idle for some times. Blinking will stop and system will
be restored.
DLN-68
< SYMPTOM DIAGNOSIS >
[TRANSFER: TY21C]
TIRE SIZE INCORRECT IS DISPLAYED ON INFORMATION DISPLAY
TIRE SIZE INCORRECT IS DISPLAYED ON INFORMATION DISPLAY
Description
INFOID:0000000009177764
While driving, 4WD warning indicator is slowly blinked on information display.
Diagnosis Procedure
INFOID:0000000009177765
1.
CHECK TIRE
Check the following.
• Tire pressure
• Wear condition
• Front and rear tire size (There is no difference between front and rear tires.)
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts. And then, drive the vehicle at speed of 20 km/h (12 MPH)
or more for 5 seconds or more. Improper size information is initialized accordingly.
2.
CHECK INPUT SIGNAL OF TIRE DIAMETER
With CONSULT
1. Start the engine.
2. Drive at 20 km/h (12 MPH) or more for approximately 4 minutes continually.
3. Check “DIS-TIRE MONI” of CONSULT “DATA MONITOR” for “ALL MODE AWD/4WD”.
Does the item on “DATA MONITOR” indicate “0 - 4 mm”?
YES
>> INSPECTION END
NO
>> GO TO 3.
3.
TERMINAL INSPECTION
Check 4WD control unit harness connector for disconnection.
Is the inspection result normal?
YES
>> Replace 4WD control unit. Refer to
DLN-72, "Removal and Installation"
NO
>> Repair or replace the error-detected parts.
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
DLN-69
< SYMPTOM DIAGNOSIS >
[TRANSFER: TY21C]
C
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DLN
N
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
INFOID:0000000009177766
Use the chart below to find the cause of the symptom. The numbers indicate the order of the inspection. If necessary, repair or replace these
parts.
Reference
SUSPECTED PARTS
(Possible cause)
T
R
ANSFER OIL (Level
low
)
T
R
ANSFER OIL (W
rong)
T
R
ANSFER OIL (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)
GEAR
(W
orn
o
r
da
ma
ge
d)
B
EARING
(W
orn
or
da
ma
ge
d)
Symptom
Noise
1
2
3
3
3
Transfer oil leakage
3
1
2
2
2
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