Nissan Pathfinder (2008 year). Manual — part 207
DLN-240
< ECU DIAGNOSIS >
[TRANSFER: TX15B]
TRANSFER CONTROL UNIT
ALDIA0067GB
TRANSFER CONTROL UNIT
DLN-241
< ECU DIAGNOSIS >
[TRANSFER: TX15B]
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DLN
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ALDIA0068GB
DLN-242
< ECU DIAGNOSIS >
[TRANSFER: TX15B]
TRANSFER CONTROL UNIT
ALDIA0069GB
TRANSFER CONTROL UNIT
DLN-243
< ECU DIAGNOSIS >
[TRANSFER: TX15B]
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DLN
N
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ALDIA0070GB
DLN-244
< ECU DIAGNOSIS >
[TRANSFER: TX15B]
TRANSFER CONTROL UNIT
ALDIA0071GB
TRANSFER CONTROL UNIT
DLN-245
< ECU DIAGNOSIS >
[TRANSFER: TX15B]
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DTC Index
INFOID:0000000001500075
DTC CHART
ALDIA0131GB
DLN-246
< ECU DIAGNOSIS >
[TRANSFER: TX15B]
TRANSFER CONTROL UNIT
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.)
FLASH CODE CHART
DTC
CONSULT-III
Diagnostic item is detected when...
Reference
[P1801]
*INITIAL START*
Due to removal of battery which cuts off power sup-
ply to transfer control unit, self-diagnosis memory
function is suspended.
[P1802]
CONTROL UNIT (1,2,3)
Malfunction is detected in the memory (RAM) sys-
tem of transfer control unit.
[P1803]
Malfunction is detected in the memory (ROM) sys-
tem of transfer control unit.
[P1804]
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
communication.
• 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 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 A/T PNP switch signal is malfunction or com-
munication error between the vehicles.
[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
or transfer shift low relay.
[P1818]
SHIFT ACT POSI SW
• Improper signal from actuator position switch is
input due to open or short circuit.
• Malfunction is detected in actuator position
switch.
[P1819]
SHIFT ACT CIR
• Malfunction is detected in transfer shut off relay
1 and transfer shut off relay 2.
• Malfunction occurs in transfer control device
drive circuit.
[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.
TRANSFER CONTROL UNIT
DLN-247
< ECU DIAGNOSIS >
[TRANSFER: TX15B]
C
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B
DLN
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NOTE:
If actuator position switch” or transfer control device” is displayed, first erase self-diagnostic results. (They may be displayed after install-
ing transfer control unit or transfer assembly.)
Flashing pattern
Item
Diagnostic item is detected when...
Reference
2
Output shaft revolution
signal (from TCM)
• Malfunction is detected in output shaft revo-
lution signal that is output from TCM through
CAN communication.
• Improper signal is input while driving.
3
Vehicle speed signal
(from ABS)
• Malfunction is detected in vehicle speed sig-
nal that is output from ABS actuator and
electric unit (control unit) through CAN com-
munication.
• Improper signal is input while driving.
4
CAN communication
Malfunction has been detected from CAN
communication.
5
AD converter
AD converter system of transfer control unit is
malfunctioning.
6
4LO switch
Improper signal from 4LO switch is input due
to open or short circuit.
7
Engine speed signal
• Malfunction is detected in engine speed sig-
nal that is output from ECM through CAN
communication.
• Improper signal is input while driving.
8
Power supply
Power supply voltage for transfer control unit is
abnormally low while driving.
9
4WD shift switch
More than two switch inputs are simultaneous-
ly detected due to short circuit of 4WD shift
switch.
10
Wait detection switch
Improper signal from wait detection switch is
input due to open or short circuit.
11
Actuator motor
• Motor does not operate properly due to open
or short circuit in actuator motor.
• Malfunction is detected in the actuator mo-
tor. (When 4WD shift switch is operated and
actuator motor is not operated.)
• Malfunction is detected in transfer shift high
relay or transfer shift low relay.
12
Actuator position
switch
• Improper signal from actuator position
switch is input due to open or short circuit.
• Malfunction is detected in the actuator posi-
tion switch.
13
Transfer control device
• Malfunction is detected in transfer shut off
relay 1 and transfer shut off 2.
• Malfunction occurs in transfer control device
drive circuit.
,
14
PNP switch signal
When A/T PNP switch signal is malfunction or
communication error between the vehicles.
Repeats flickering
every 0.25 sec.
Data erase display
• Power supply failure of memory back-up.
• Battery is disconnected for a long time.
• Battery performance is poor.
Repeats flickering
every 2 to 5 sec.
—
Circuits that the self-diagnosis covers have no
malfunction.
—
No flickering
PNP switch or 4WD
shift switch
PNP switch or 4WD shift switch circuit is short-
ed or open.
or
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