Nissan Titan. Manual — part 119
DLN-48
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
P1818 ACTUATOR POSITION SWITCH
2. Depress brake pedal and stop vehicle.
3. Set A/T selector lever to N position.
4. Check voltage between transfer control unit harness connector
terminal and ground.
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 2.
2.
CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND ACTUATOR POSITION SWITCH
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector and the transfer control device harness connector.
3. Check continuity between the following terminals.
-
Transfer control unit harness connector E142 terminal 10 and
transfer control device (actuator position switch) harness con-
nector F58 terminal 26.
-
Transfer control unit harness connector E142 terminal 11 and
transfer control device (actuator position switch) harness con-
nector F58 terminal 20.
-
Transfer control unit harness connector E142 terminal 12 and
transfer control device (actuator position switch) harness con-
nector F58 terminal 21.
-
Transfer control unit harness connector E142 terminal 13 and
transfer control device (actuator position switch) harness con-
nector F58 terminal 25.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
Connector
Terminal
Condition
Voltage
(Approx.)
E142
10 -
Ground
4WD shift switch: 2WD and 4LO
0V
4WD shift switch: 4H
Battery
voltage
11 -
Ground
4WD shift switch: 4LO
0V
4WD shift switch: 2WD and 4H
Battery
voltage
12 -
Ground
4WD shift switch: 2WD and 4H
0V
4WD shift switch: 4LO
Battery
voltage
13 -
Ground
4WD shift switch: 4H and 4LO
0V
4WD shift switch: 2WD
Battery
voltage
SDIA3369E
Continuity should exist.
SDIA3370E
P1818 ACTUATOR POSITION SWITCH
DLN-49
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
2. Check continuity between transfer control device (actuator posi-
tion switch) harness connector F58 terminal 22 and ground.
Also check harness for short to power.
OK or NG
OK
>> GO TO 4.
NG
>> Repair open circuit or short to power in harness or con-
nectors.
4.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
OK or NG
OK
>> GO TO 5.
NG
>> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
5.
CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK
>> Inspection End.
NG
>> Replace transfer control device. Refer to
DLN-96, "Removal and Installation"
.
Continuity should exist.
SDIA2815E
DLN-50
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
P1819 TRANSFER CONTROL DEVICE
P1819 TRANSFER CONTROL DEVICE
Description
INFOID:0000000009885994
The transfer control device integrates the actuator motor and actuator position switch. DTC P1819 of flash
code 13 will set if either of the following conditions exist:
• Malfunction occurs in transfer control device drive circuit.
• Malfunction is detected in transfer shut off relay 1 and transfer shut off relay 2.
DTC Logic
INFOID:0000000009885995
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Perform self-diagnosis.
Is DTC P1819 or flash code 13 detected?
YES
>> Perform diagnosis procedure. Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009885996
Regarding Wiring Diagram information, refer to
.
1.
CHECK POWER SUPPLY
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector.
3. Check voltage between transfer control unit harness connector
terminal and ground.
DTC
CONSULT
Diagnostic item is detected when...
Reference
[P1819]
SHIFT ACT CIR
• Malfunction is detected in transfer
shut off relay 1 and transfer shut off re-
lay 2.
• Malfunction occurs in transfer control
device drive circuit.
Connector
Terminal
Voltage (Approx.)
E142
25 - Ground
0V
E143
27 - Ground
SDIA3371E
P1819 TRANSFER CONTROL DEVICE
DLN-51
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
4. Turn ignition switch ON. (Do not start engine.)
5. Check voltage between transfer control unit harness connector
terminals and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Check the following. If any items are damaged, repair
or replace damaged parts.
• 10A fuse (No. 59, located in the fuse and relay block).
• Harness for short or open between battery and transfer shut off relay 1 harness connector E46
terminal 5.
• Harness for short or open between transfer control unit harness connector E143 terminal 27 and
transfer shut off relay 1 harness connector E46 terminal 3.
• Harness for short or open between ignition switch and transfer shut off relay 1 harness connec-
tor E46 terminal 2.
• Harness for short or open between transfer shut off relay 1 harness connector E46 terminal 1
and ground.
• Harness for short or open between ignition switch and transfer control unit harness connector
E142 terminal 25.
• Battery and ignition switch.
• Transfer shut off relay 1. Refer to
DLN-22, "Component Inspection"
2.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF (stay for at least 5 seconds).
2. Disconnect transfer control unit harness connector.
3. Check continuity between transfer control unit harness connec-
tor E143 terminal 32 and ground.
Also check harness for short to power.
OK or NG
OK
>> GO TO 3.
NG
>> Repair open circuit or short to power in harness or con-
nectors.
3.
CHECK POWER SUPPLY SIGNAL
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Connect transfer control unit harness connector.
3. Check voltage between transfer control unit harness connector
terminal and ground.
Connector
Terminal
Voltage (Approx.)
E142
25 - Ground
Battery voltage
E143
27 - Ground
SDIA3372E
Continuity should exist.
SDIA2818E
Connector
Terminal
Voltage (Approx.)
E143
40 - Ground
Battery voltage
SDIA2819E
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