Nissan Titan. Manual — part 166
DLN-236
< ECU DIAGNOSIS INFORMATION >
[REAR FINAL DRIVE: M226 (ELD) ]
DIFFERENTIAL LOCK CONTROL UNIT
ECU DIAGNOSIS INFORMATION
DIFFERENTIAL LOCK CONTROL UNIT
Reference Value
INFOID:0000000009886143
DIFFERENTIAL LOCK CONTROL UNIT TERMINAL CONNECTOR LAYOUT
Data are reference value and are measured between each terminal and ground.
CAUTION:
When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
SDIA2573E
Terminal No.
(Wire color)
Description
Condition
Voltage (V) (Ap-
prox.)
+
-
Signal name
Input/
Output
1
(L)
Ground
Ign power supply
Input
Ignition ON or START
Battery voltage
2
(L)
Ground
Ign power supply
Input
Ignition ON or START
Battery voltage
3
(B)
Ground
Ground
Input
Ignition ON
Less than 0.2V
4
(P)
–
CAN-L
–
–
5
(L)
–
CAN-H
–
–
9
(G)
Ground
Differential lock mode switch
(ON)
Input
Differential lock mode switch: ON
Battery voltage
Differential lock mode switch: OFF
0V
10
(B)
Ground
Ground
Input
Ignition ON
Less than 0.2V
11
(V)
Ground
Differential lock solenoid
(LO)
Output
Differential lock mode switch: ON
0V
Differential lock mode switch: OFF
Battery voltage
12
(Y)
Ground
Differential lock solenoid
(HIGH)
Output
Differential lock mode switch: ON
0V
Differential lock mode switch: OFF
Battery voltage
13
(G/W)
–
K-LINE
–
–
–
15
(Y/R)
Ground
Battery power supply
(Memory back-up)
Input
Ignition OFF
Battery voltage
20
(W/R)
Ground
Differential lock position
switch
Input
Differential lock mode switch: ON
(DIFF LOCK indicator lamp: ON)
0V
Differential lock mode switch: OFF
(DIFF LOCK indicator lamp: OFF)
Battery voltage
21
(L)
Ground
DIFF LOCK indicator lamp
Output
DIFF LOCK indicator lamp: ON
0V
DIFF LOCK indicator lamp: OFF
Battery voltage
22
(O)
Ground
Differential lock mode switch
(OFF)
Input
Differential lock mode switch: ON
0V
Differential lock mode switch: OFF
Battery voltage
DIFFERENTIAL LOCK CONTROL UNIT
DLN-237
< ECU DIAGNOSIS INFORMATION >
[REAR FINAL DRIVE: M226 (ELD) ]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
DTC Index
INFOID:0000000009886144
CAUTION:
If “CAN COMM CIRCUIT [U1000]” is displayed with other DTCs, first perform the trouble diagnosis for CAN communication
line.
Items (CONSULT screen
terms)
Diagnostic item is detected when...
Check item
INITIAL START
[P1833]
Due to removal of battery which cuts off power supply to differential
control unit, self-diagnosis memory function is suspended.
CONTROL UNIT 1
[P1834]
Malfunction is detected in the memory (RAM) system of differential
lock control unit.
CONTROL UNIT 2
[P1835]
Malfunction is detected in the memory (ROM) system of differential
lock control unit.
CONTROL UNIT 3
[P1836]
Malfunction is detected in the memory (EEPROM) system of differ-
ential lock control unit.
CONTROL UNIT 4
[P1837]
AD converter system of differential lock control unit is malfunctioning.
ON SW
[P1838]
More than two switch inputs are simultaneously detected due to
short circuit of differential lock mode switch.
POSI SW ON
[P1839]
When differential lock position switch is ON, rotation difference oc-
curs in wheel speed (rear wheel right and left).
RELAY
[P1844]
Differential lock control unit detects as irregular by comparing target
value with monitor value.
SOL CIRCUIT
[P1847]
Malfunction is detected in differential lock control unit internal circuit.
SOL DISCONNECT
[P1848]
• Differential lock solenoid internal circuit or harness is open.
• Differential lock solenoid relay does not switch to ON position.
SOL SHORT
[P1849]
Differential lock solenoid internal circuit or harness is shorted.
SOL CURRENT
[P1850]
Differential lock solenoid relay does not switch to OFF position.
ABS SYSTEM
[C1203]
Malfunction related to wheel sensor has been detected by ABS ac-
tuator and electric unit (control unit).
CAN COMM CIRCUIT
[U1000]
Malfunction has been detected from CAN communication line.
DLN-238
< WIRING DIAGRAM >
[REAR FINAL DRIVE: M226 (ELD) ]
REAR FINAL DRIVE
WIRING DIAGRAM
REAR FINAL DRIVE
Wiring Diagram
INFOID:0000000009886145
ABDWA0620GB
REAR FINAL DRIVE
DLN-239
< WIRING DIAGRAM >
[REAR FINAL DRIVE: M226 (ELD) ]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
ABDIA0941GB
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