Nissan Pathfinder (2010 year). Manual — part 191
TRANSFER CONTROL UNIT
DLN-101
< ECU DIAGNOSIS >
[TRANSFER: ATX14B]
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DLN
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ABDIA0376GB
2010 Pathfinder
DLN-102
< ECU DIAGNOSIS >
[TRANSFER: ATX14B]
TRANSFER CONTROL UNIT
ABDIA0377GB
2010 Pathfinder
TRANSFER CONTROL UNIT
DLN-103
< ECU DIAGNOSIS >
[TRANSFER: ATX14B]
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ABDIA0378GB
2010 Pathfinder
DLN-104
< ECU DIAGNOSIS >
[TRANSFER: ATX14B]
TRANSFER CONTROL UNIT
DTC Index
INFOID:0000000005258316
DTC CHART
ABDIA0379GB
2010 Pathfinder
TRANSFER CONTROL UNIT
DLN-105
< ECU DIAGNOSIS >
[TRANSFER: ATX14B]
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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.
[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.
Refer to
[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.
Refer to
[P1809]
CONTROL UNIT 4
AD converter system of transfer control unit is mal-
functioning.
Refer to
[P1810]
4L POSI SW TF
Improper signal from neutral-4LO switch is input due
to open or short circuit.
Refer to
[P1811]
BATTERY VOLTAGE
Power supply voltage for transfer control unit is ab-
normally low while driving.
Refer to
[P1813]
4WD MODE SW
More than two switch inputs are simultaneously de-
tected due to short circuit of 4WD shift switch.
Refer to
[P1814]
4WD DETECT SWITCH
Improper signal from wait detection switch is input
due to open or short circuit.
Refer to
[P1816]
PNP SW/CIRC
When transmission range switch signal is malfunc-
tion or communication error between the control
units.
Refer to
[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.
Refer to
[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.
Refer to
[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.
Refer to
[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.
Refer to
[P1822]
DUTY SOLENOID
Proper voltage is not applied to clutch pressure so-
lenoid valve due to open or short circuit.
Refer to
[P1823]
2-4WD SOLENOID
Proper voltage is not applied to 2-4WD solenoid
valve due to open or short circuit.
Refer to
[P1824]
MOTOR RELAY
Motor does not operate properly due to open or
short circuit in transfer motor or transfer motor relay.
Refer to
2010 Pathfinder
DLN-106
< ECU DIAGNOSIS >
[TRANSFER: ATX14B]
TRANSFER CONTROL UNIT
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
[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.
[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.
[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.
[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.
[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.
[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.
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.
2010 Pathfinder
TRANSFER CONTROL UNIT
DLN-107
< ECU DIAGNOSIS >
[TRANSFER: ATX14B]
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9
Transfer fluid tempera-
ture
Signal voltage from transfer fluid temperature sensor is ab-
normally high (Transfer fluid temperature is abnormally low)
while driving.
.
10
Neutral-4LO switch
Improper signal from neutral-4LO switch is input due to
open or short circuit.
.
11
Clutch pressure switch
• Improper signal is input due to open or short circuit.
• Malfunction occurs in clutch pressure switch or hydraulic
circuit.
.
12
Line pressure switch
• Improper signal is input due to open or short circuit.
• Malfunction occurs in line pressure switch or hydraulic
circuit.
.
13
Engine speed signal
(from ECM)
• Malfunction is detected in engine speed signal that is out-
put from ECM through CAN communication.
• Improper signal is input while driving.
.
14
Accelerator pedal posi-
tion sensor (from
ECM)
• Malfunction is detected in accelerator pedal position sig-
nal that is output from ECM through CAN communication.
• Signal voltage from accelerator pedal position sensor is
abnormally high or low.
.
15
Power supply
Power supply voltage for transfer control unit is abnormally
low while driving.
.
16
4WD shift switch
More than two switch inputs are simultaneously detected
due to short circuit of 4WD shift switch.
.
17
ABS operation signal
(from ABS)
Malfunction is detected in ABS operation signal that is out-
put from ABS actuator and electric unit (control unit)
through CAN communication.
.
18
Wait detection switch
Improper signal from wait detection switch is input due to
open or short circuit.
.
19
Actuator motor
• Motor does not operate properly due to open or short cir-
cuit 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.
.
20
Actuator position
switch
• Improper signal from actuator position switch is input due
to open or short circuit.
• Malfunction is detected in the actuator position switch.
.
21
Actuator circuit
• Transfer control device actuator circuit is shorted or open.
(Malfunctions are detected when motor relay circuit is
open/shorted or relay transfer shift circuit is open/short-
ed.)
• Malfunction occurs in transfer control device drive circuit.
.
22
VDC operation signal
(from VDC)
Malfunction is detected in VDC operation signal that is out-
put from ABS actuator and electric unit (control unit)
through CAN communication.
.
23
TCS operation signal
(from TCS)
Malfunction is detected in TCS operation signal that is out-
put from ABS actuator and electric unit (control unit)
through CAN communication.
.
24
Transmission range
switch signal (from
TCM)
Transmission range switch signal is malfunction or commu-
nication error between the control units.
.
Repeats flickering
every 2 to 5 sec.
—
System normal.
—
Flashing pattern
Item
Diagnostic item is detected when...
Reference
2010 Pathfinder
DLN-108
< ECU DIAGNOSIS >
[TRANSFER: ATX14B]
TRANSFER CONTROL UNIT
CAUTION:
• If CAN communication is displayed with other DTCs, first perform the trouble diagnosis for CAN communication line.
• If ABS operation signal, VDC operation signal or TCS operation signal is displayed, first perform the trouble diagnosis for
ABS system.
• If Output shaft revolution signal is displayed, first perform the trouble diagnosis for A/T system.
NOTE:
• If actuator position switch or actuator circuit is displayed, first erase self-diagnostic results. (Actuator position switch or actuator circuit
may be displayed after installing transfer control unit or transfer assembly.)
• If clutch pressure switch or line pressure switch is displayed only while driving in reverse, check the continuity of R position on trans-
mission range switch. When there is no malfunction found in the electrical system, check the hydraulic system.
Repeats flickering
every 0.25 sec.
Data erase display
• Power supply failure of memory back-up.
• Battery performance is poor.
Refer to
No flickering
Transmission range
switch or 4WD shift
switch
Transmission range switch or 4WD shift switch circuit is
shorted or open.
.
Flashing pattern
Item
Diagnostic item is detected when...
Reference
2010 Pathfinder
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