Nissan Titan. Instruction — part 122
DLN-60
< ECU DIAGNOSIS INFORMATION >
[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
[P1802]
CONTROL UNIT (1,2,3)
Malfunction is detected in the memory (RAM) system of transfer control unit.
[P1803]
Malfunction is detected in the memory (ROM) system 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 actu-
ator 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 malfunctioning.
[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 abnormally low while driving.
[P1813]
4WD MODE SW
More than two switch inputs are simultaneously detected 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 transmission range switch signal is malfunction or communication er-
ror 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 op-
erated 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 cir-
cuit.
• 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 communication.
• Improper signal is input while driving.
[U1000]
CAN COMM CIRCUIT
When transfer control unit is not transmitting or receiving CAN communication
signal for 2 seconds or more.
[U1010]
CONTROL UNIT (CAN)
Detecting error during the initial diagnosis of CAN controller of transfer control
unit.
DTC
CONSULT
Diagnostic item is detected when...
Reference
Flashing pattern
Item
Diagnostic item is detected when...
Reference
2
Output shaft revolution signal (from TCM)
• Malfunction is detected in output shaft revolution 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 signal that is
output from ABS actuator and electric unit (control unit)
through CAN communication.
• 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 malfunc-
tioning.
6
4LO switch
Improper signal from 4LO switch is input due to open or
short circuit.
TRANSFER CONTROL UNIT
DLN-61
< ECU DIAGNOSIS INFORMATION >
[TRANSFER: TX15B]
C
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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.)
7
Engine speed signal
• Malfunction is detected in engine speed signal 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 abnormal-
ly low while driving.
9
4WD shift switch
More than two switch inputs are simultaneously 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 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.
12
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.
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 cir-
cuit.
14
Transmission range switch signal
When A/T transmission range switch signal is malfunction
or communication error between the vehicles.
Repeats flicker-
ing 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 flicker-
ing every 2 to 5
sec.
—
Circuits that the self-diagnosis covers have no malfunc-
tion.
—
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
DLN-62
< WIRING DIAGRAM >
[TRANSFER: TX15B]
PART TIME 4WD SYSTEM
WIRING DIAGRAM
PART TIME 4WD SYSTEM
Wiring Diagram
INFOID:0000000009886008
ABDWA0618GB
PART TIME 4WD SYSTEM
DLN-63
< WIRING DIAGRAM >
[TRANSFER: TX15B]
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ABDWA0619GB
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