Nissan Pathfinder (2011 year). Instruction — part 194
DLN-90
< ECU DIAGNOSIS INFORMATION >
[TRANSFER: ATX14B]
TRANSFER CONTROL UNIT
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 indica-
tion on speedome-
ter (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 mo-
tor relay
• Accelerator pedal de-
pressed
• 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 se-
lector lever P or N posi-
tion)
On
4WD shift switch: 4H (A/T
selector lever P position)
Off
(On for approx. 2
sec. after shifting
to P.)
4WD shift switch: 4H (Ex-
cept for A/T selector lever
P position)
On
Monitored item [Unit]
Content
Condition
Display value
2011 Pathfinder
TRANSFER CONTROL UNIT
DLN-91
< ECU DIAGNOSIS INFORMATION >
[TRANSFER: ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
MOTOR RLY MON [On/
Off]
Check signal for transfer
control unit signal output
• Accelerator pedal de-
pressed
• 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 se-
lector lever P or N posi-
tion)
On
4WD shift switch: 4H (A/T
selector lever P position)
Off
(On for approx. 2
sec. after shifting
to P.)
4WD shift switch: 4H (Ex-
cept 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 in-
dicator lamp (2WD indi-
cator 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 in-
dicator lamp (AUTO indi-
cator 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 in-
dicator 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 po-
sition 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 po-
sition 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 ACT 1 [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 op-
erating.)
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 op-
erating.)
On
Except the above
Off
SHIFT ACT 2 [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 oper-
ating.)
On
Except the above
Off
Monitored item [Unit]
Content
Condition
Display value
2011 Pathfinder
DLN-92
< ECU DIAGNOSIS INFORMATION >
[TRANSFER: ATX14B]
TRANSFER CONTROL UNIT
PHYSICAL VALUES
Terminal Layout
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 oper-
ating.)
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 (output
speed sensor)
During driving
Approximately
matches the out-
put shaft speed.
AT GEAR POSI [1/2/3/4/
5]
Condition of A/T selector
lever position
Displays actual A/T gear position.
1
2
3
4
5
Monitored item [Unit]
Content
Condition
Display value
WDIA0384E
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 de-
pressed
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 de-
pressed
4WD shift switch: 4H to 4LO (“Wait” func-
tion is operating.)
Battery voltage
Except the above
0V
5
GR
4WD warning lamp
4WD warning lamp: ON
0V
4WD warning lamp: OFF
Battery voltage
6
B
Ground
Always
0V
7
L
CAN-H
—
—
8
P
CAN-L
—
—
9
G
4WD shift switch
(2WD)
Ignition switch: ON
4WD shift switch: 2WD
Battery voltage
4WD shift switch: AUTO, 4H or 4LO
0V
2011 Pathfinder
TRANSFER CONTROL UNIT
DLN-93
< ECU DIAGNOSIS INFORMATION >
[TRANSFER: ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
10
P
Transfer dropping resistor
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
4WD shift switch: AUTO
4 - 14V
4WD shift switch: 2WD, 4H or 4LO
Less than 1V
11
BR
4WD shift indicator lamp
(Lock indicator lamp)
Lock indicator lamp of 4WD shift indicator lamp: OFF
Battery voltage
Lock indicator lamp of 4WD shift indicator lamp: ON
0V
12
O
4LO indicator lamp
4LO indicator lamp: OFF
Battery voltage
4LO indicator lamp: ON
0V
13
G
Transfer shift low relay
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
4WD shift switch: 4LO to 4H (“Wait” func-
tion is operating.)
Battery voltage
Except the above
0V
14
V
Transfer motor relay
• Accelerator pedal
depressed
• Vehicle stopped
• Engine running
• Brake pedal de-
pressed
4WD shift switch: 2WD
Battery voltage
4WD shift switch: AUTO or 4LO (A/T selec-
tor lever “P” or “N” position)
Battery voltage
(0V 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)
0V
4WD shift switch: 4H (A/T selector lever
“P” position)
Battery voltage
(0V for approx.
2 sec. after
shifting to “P”.)
4WD shift switch: 4H (Except for A/T selec-
tor lever “P” position)
0V
15
LG
ATP warning lamp
ATP indicator lamp: ON
0V
ATP indicator lamp: OFF
Battery voltage
16
Y
Power supply
Ignition switch: ON
Battery voltage
Ignition switch: OFF
(5 seconds after ignition switch is turned OFF)
0V
18
O
4WD shift switch
(4H)
Ignition switch: ON
4WD shift switch: 4H
Battery voltage
4WD shift switch: 2WD, AUTO or 4LO
0V
19
R
Clutch pressure solenoid
valve
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
4WD shift switch: AUTO
1.5 - 3V
4WD shift switch: 2WD, 4H or 4LO
Less than 1V
21
B
4WD shift indicator lamp
(AUTO indicator lamp)
AUTO indicator lamp of 4WD shift indicator lamp: OFF
Battery voltage
AUTO indicator lamp of 4WD shift indicator lamp: ON
0V
22
GR
Power supply
Ignition switch: ON
Battery voltage
Ignition switch: OFF
(5 seconds after ignition switch is turned OFF)
0V
23
W
4WD shift switch
(4LO)
Ignition switch: ON
4WD shift switch: 4LO
Battery voltage
4WD shift switch: 2WD, AUTO or 4H
0V
24
LG
4WD shift switch
(AUTO)
Ignition switch: ON
4WD shift switch: AUTO
Battery voltage
4WD shift switch: 2WD, 4H or 4LO
0V
Terminal
Wire
color
Item
Condition
Data (Approx.)
2011 Pathfinder
DLN-94
< ECU DIAGNOSIS INFORMATION >
[TRANSFER: ATX14B]
TRANSFER CONTROL UNIT
25
Y
Neutral-4LO switch
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
4WD shift switch: 2WD, AUTO or 4H
Battery voltage
4WD shift switch: 4H to 4LO (While actua-
tor motor is operating.)
Battery voltage
→
0V
4WD shift switch: 4LO to 4H (While actua-
tor motor is operating.)
0V
→
Battery
voltage
4WD shift switch: 4LO
0V
27
W
Actuator position switch 2
(High)
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
4WD shift switch: 4H, AUTO or 2WD
0V
4WD shift switch: 4LO
Battery voltage
28
P
Sensor ground
Always
0V
29
W/G
Ignition switch monitor
Ignition switch: ON
Battery voltage
Ignition switch: OFF
0V
30
V
Shut off relay
Ignition switch: ON
0V
Ignition switch: OFF
(5 seconds after ignition switch is turned OFF)
Battery voltage
31
G
Transfer fluid temperature
sensor
Ignition switch: ON
Transfer fluid temperature approx. 20
°
C
(68
°
F)
1.1V
Transfer fluid temperature approx. 80
°
C
(176
°
F)
0.3V
33
GR
Transfer shift high relay
monitor
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
4WD shift switch: 4H to 4LO (“Wait” func-
tion is operating.)
Battery voltage
Except the above
0V
34
BR
Clutch pressure switch
• Vehicle stopped
• Engine running
• A/T selector lever
“D” position
4WD shift switch: AUTO or 4H (“Wait” func-
tion is not operating.)
0V
• Vehicle stopped
• Engine running
4WD shift switch: 2WD (“Wait” function is
not operating.)
Battery voltage
35
L
Line pressure switch
• Ignition switch: ON
• A/T selector lever “D” position
• 4WD shift switch: AUTO
0V
• After the vehicle
has been left at
room temperature
for 5 minutes and
more with ignition
switch in “OFF” po-
sition.
• Ignition switch: ON
• A/T selector lever: “P” or "N" position
• 4WD shift switch: other than AUTO
Battery voltage
40
R
ATP switch
• Vehicle stopped
• Engine running
• A/T selector lever
“N”
• Brake pedal de-
pressed
4WD shift switch: 4H to 4LO or 4LO to 4H
(While actuator motor is operating.)
0V
Except the above
Battery voltage
Terminal
Wire
color
Item
Condition
Data (Approx.)
2011 Pathfinder
TRANSFER CONTROL UNIT
DLN-95
< ECU DIAGNOSIS INFORMATION >
[TRANSFER: ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
CAUTION:
When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
NOTE:
Data are reference value and are measured between each terminal and ground.
DTC Index
INFOID:0000000006245008
DTC CHART
41
SB
Transfer motor relay moni-
tor
• Accelerator pedal
depressed
• Vehicle stopped
• Engine running
• Brake pedal de-
pressed
4WD shift switch: 2WD
0V
4WD shift switch: AUTO or 4LO (A/T selec-
tor lever “P” or “N” position)
0V
(Battery volt-
age 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)
Battery voltage
4WD shift switch: 4H (A/T selector lever
“P” position)
0V
(Battery volt-
age for approx.
2 sec. after
shifting to “P”.)
4WD shift switch: 4H (Except for A/T selec-
tor lever “P” position)
Battery voltage
42
Y
Transfer shift low relay
monitor
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
4WD shift switch: 4LO to 4H (“Wait” func-
tion is operating.)
Battery voltage
Except the above
0V
43
O
Wait detection switch
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
4WD shift switch: 2WD, AUTO or 4H
Battery voltage
4WD shift switch: 4H to 4LO (While actua-
tor motor is operating.)
Battery voltage
→
0V
4WD shift switch: 4LO to 4H (While actua-
tor motor is operating.)
0V
→
Battery
voltage
4WD shift switch: 4LO
0V
44
LG
Actuator position switch 1
(Low)
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
4WD shift switch: 4LO
0V
4WD shift switch: 2WD, AUTO or 4H
Battery voltage
45
B
Ground
Always
0V
47
B
Power supply
(Memory back-up)
Ignition switch: ON
Battery voltage
Ignition switch: OFF
Battery voltage
Terminal
Wire
color
Item
Condition
Data (Approx.)
DTC
CONSULT-III
Diagnostic item is detected when...
Reference
[P1802]
CONTROL UNIT 1
Malfunction is detected in the memory (RAM) sys-
tem of transfer control unit.
Refer to
[P1803]
CONTROL UNIT 2
Malfunction is detected in the memory (ROM) sys-
tem of transfer control unit.
[P1804]
CONTROL UNIT 3
Malfunction is detected in the memory (EEPROM)
system of transfer control unit.
2011 Pathfinder
DLN-96
< ECU DIAGNOSIS INFORMATION >
[TRANSFER: ATX14B]
TRANSFER CONTROL UNIT
[P1807]
VHCL SPEED SEN·AT
• Malfunction is detected in output shaft revolution
signal that is output from TCM through CAN com-
munication.
• Improper signal is input while driving.
[P1808]
VHCL SPEED SEN·ABS
• Malfunction is detected in vehicle speed signal
that is output from ABS actuator and electric unit
(control unit) through CAN communication.
• Improper signal is input while driving.
[P1809]
CONTROL UNIT 4
AD converter system of transfer control unit is mal-
functioning.
[P1810]
4L POSI SW TF
Improper signal from neutral-4LO switch is input due
to open or short circuit.
[P1811]
BATTERY VOLTAGE
Power supply voltage for transfer control unit is ab-
normally low while driving.
[P1813]
4WD MODE SW
More than two switch inputs are simultaneously de-
tected due to short circuit of 4WD shift switch.
[P1814]
4WD DETECT SWITCH
Improper signal from wait detection switch is input
due to open or short circuit.
[P1816]
PNP SW/CIRC
When transmission range switch signal is malfunc-
tion or communication error between the control
units.
[P1817]
SHIFT ACTUATOR
• Motor does not operate properly due to open or
short circuit in actuator motor.
• Malfunction is detected in the actuator motor.
(When 4WD shift switch is operated and actuator
motor is not operated)
• Malfunction is detected in transfer shift high relay
and transfer shift low relay.
[P1818]
SHIFT ACT POSI SW
• Improper signal from actuator position switch is in-
put due to open or short circuit.
• Malfunction is detected in the actuator position
switch.
[P1819]
SHIFT ACT CIR
• Transfer control device actuator circuit is shorted
or open. (Malfunctions are detected when transfer
shift relay circuit is open/shorted or relay monitor
circuit is open/shorted.)
• Malfunction occurs in transfer control device drive
circuit.
• Malfunction is detected in transfer shut off relay.
[P1820]
ENGINE SPEED SIG
• Malfunction is detected in engine speed signal
that is output from ECM through CAN communi-
cation.
• Improper signal is input while driving.
[P1822]
DUTY SOLENOID
Proper voltage is not applied to clutch pressure so-
lenoid valve due to open or short circuit.
[P1823]
2-4WD SOLENOID
Proper voltage is not applied to 2-4WD solenoid
valve due to open or short circuit.
[P1824]
MOTOR RELAY
Motor does not operate properly due to open or
short circuit in transfer motor or transfer motor relay.
[P1826]
OIL TEMP SEN
Signal voltage from transfer fluid temperature sen-
sor is abnormally high (Transfer fluid temperature is
abnormally low) while driving.
[P1827]
CLUTCH PRES SW
• Improper signal from clutch pressure switch is in-
put due to open or short circuit.
• Malfunction occurs in clutch pressure switch or
hydraulic circuit.
DTC
CONSULT-III
Diagnostic item is detected when...
Reference
2011 Pathfinder
TRANSFER CONTROL UNIT
DLN-97
< ECU DIAGNOSIS INFORMATION >
[TRANSFER: ATX14B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
CAUTION:
• If CAN COMM CIRCUIT [U1000] or CONTROL UNIT (CAN) [U1010] are displayed with other DTCs, first perform the trouble
diagnosis for CAN communication line.
• If ABS OP SIG [P1830], VDC OP SIG [P1831] or TCS OP SIG [P1832] is displayed, first perform the trouble diagnosis for ABS
system.
• If VHCL SPEED SEN·AT [P1807] is displayed, first perform the trouble diagnosis for A/T system.
NOTE:
• If SHIFT ACT POSI SW [P1818] or SHIFT ACT CIR [P1819] is displayed, first erase self-diagnostic results. (SHIFT ACT POSI SW
[P1818] or SHIFT ACT CIR [P1819] may be displayed after installing transfer control unit or transfer assembly.)
• If CL PRES SW [P1827] or LINE PRES SW [P1828] is displayed only while driving in reverse, check the continuity of R position on
transmission range switch. When there is no malfunction found in the electrical system, check the hydraulic system.
FLASH CODE CHART
[P1828]
LINE PRES SW
• Improper signal from line pressure switch is input
due to open or short circuit.
• Malfunction occurs in line pressure switch or hy-
draulic circuit.
Refer to
[P1829]
THROTTLE POSI SEN
• Malfunction is detected in accelerator pedal posi-
tion signal that is output from ECM through CAN
communication.
• Signal voltage from accelerator pedal position
sensor is abnormally high or low.
Refer to
[P1830]
ABS OP SIG
Malfunction is detected in ABS operation signal that
is output from ABS actuator and electric unit (control
unit) through CAN communication.
Refer to
[P1831]
VDC OP SIG
Malfunction is detected in VDC operation signal that
is output from ABS actuator and electric unit (control
unit) through CAN communication.
Refer to
[P1832]
TCS OP SIG
Malfunction is detected in TCS operation signal that
is output from ABS actuator and electric unit (control
unit) through CAN communication.
Refer to
[U1010]
CONTROL UNIT (CAN)
Detecting error during the initial diagnosis of CAN
controller of transfer control unit.
Refer to
DTC
CONSULT-III
Diagnostic item is detected when...
Reference
Flashing pattern
Item
Diagnostic item is detected when...
Reference
2
Vehicle speed signal
(from A/T)
• Malfunction is detected in output shaft revolution signal
that is output from TCM through CAN communication.
• Improper signal is input while driving.
.
3
Clutch pressure sole-
noid signal
Proper voltage is not applied to clutch pressure solenoid
valve due to open or short circuit.
.
4
2-4WD solenoid signal
Proper voltage is not applied to 2-4WD solenoid valve due
to open or short circuit.
.
5
Transfer motor
Transfer motor does not operate properly due to open or
short circuit in transfer motor or transfer motor relay.
.
6
Vehicle speed signal
(from ABS)
• Malfunction is detected in vehicle speed signal that is out-
put from ABS actuator and electric unit (control unit)
through CAN communication.
• Improper signal is input while driving.
.
7
CAN communication
Malfunction has been detected from CAN communication
line.
8
AD converter
AD converter system of transfer control unit is malfunction-
ing.
.
9
Transfer fluid tempera-
ture
Signal voltage from transfer fluid temperature sensor is ab-
normally high (Transfer fluid temperature is abnormally low)
while driving.
.
2011 Pathfinder
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