Nissan Titan A60. Instruction — part 276
P1817 ACTUATOR MOTOR
DLN-43
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
C
E
F
G
H
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J
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M
A
B
DLN
N
O
P
4. Turn ignition switch ON. (Do not start engine.)
5. Check voltage between transfer shift high/low relay harness
connector terminals and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Check the following. If any items are damaged, repair
or replace damaged parts.
• Harness for short or open between transfer control unit harness connector terminal 27 and
transfer shift high relay harness connector E156 terminal 2.
• Harness for short or open between transfer control unit harness connector terminal 27 and
transfer shift low relay harness connector terminal E157 terminal 2.
4.
CHECK TRANSFER SHIFT RELAY
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Remove transfer shift high relay and transfer shift low relay.
3. Apply 12V direct current between transfer shift high relay and
transfer shift low relay terminals 1 and 2.
4. Check continuity between relay terminals 3 and 4, 3 and 5.
OK or NG
OK
>> GO TO 5.
NG
>> Replace the transfer relay.
5.
CHECK (1) HARNESS BETWEEN TRANSFER CONTROL UNIT AND TRANSFER SHIFT RELAY
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector.
3. Remove transfer shift high relay and transfer shift low relay.
4. Check continuity between the following terminals.
-
Transfer control unit harness connector E143 (A) terminal 42
and transfer shift high relay harness connector E156 (B) termi-
nal 1.
-
Transfer control unit harness connector E143 (A) terminal 50
and transfer shift low relay harness connector E157 (C) terminal
1.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace damaged parts.
6.
CHECK (2) HARNESS BETWEEN TRANSFER CONTROL UNIT AND TRANSFER SHIFT RELAY
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector.
3. Remove transfer shift high relay and transfer shift low relay.
Connector
Terminal
Voltage (Approx.)
A: E156
2 - Ground
Battery voltage
B: E157
2 - Ground
Battery voltage
WDIA0320E
Terminal
Condition
Continuity
3 - 4
12V direct current supply between terminals 1 and 2
No
OFF
Yes
3 - 5
12V direct current supply between terminals 1 and 2
Yes
OFF
No
WIIA0291E
Continuity should exist.
WDIA0321E
DLN-44
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
P1817 ACTUATOR MOTOR
4. Check continuity between the following terminals.
-
Transfer control unit harness connector E143 (A) terminal 28
and transfer shift high relay harness connector E156 (B) termi-
nal 5.
-
Transfer control unit harness connector E143 (A) terminal 28
and transfer shift low relay harness connector E157 (C) terminal
5.
-
Transfer control unit harness connector E143 (A) terminal 31
and transfer shift high relay harness connector E156 (B) termi-
nal 4.
-
Transfer control unit harness connector E143 (A) terminal 31
and transfer shift low relay harness connector E157 (C) terminal
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 7.
NG
>> Repair or replace damaged parts.
7.
CHECK ACTUATOR MOTOR OPERATION CIRCUIT
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 E143 terminal 48 and
transfer control device (actuator motor) harness connector F58
terminal 23.
-
Transfer control unit harness connector E143 terminal 47 and
transfer control device (actuator motor) harness connector F58
terminal 24.
-
Transfer control device (actuator motor) harness connector F58
(A) terminal 24 and transfer shift high relay harness connector
E156 (B) terminal 3.
-
Transfer control device (actuator motor) harness connector F58
(A) terminal 23 and transfer shift low relay harness connector
E157 (C) terminal 3.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 8.
NG
>> Repair or replace damaged parts.
8.
CHECK ACTUATOR MOTOR
1. Remove transfer control device. Refer to
DLN-98, "Removal and Installation"
Continuity should exist.
AWDIA0056ZZ
SDIA2811E
Continuity should exist.
WDIA0323E
P1817 ACTUATOR MOTOR
DLN-45
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
2. Check operation by applying battery voltage to transfer control
device (actuator motor) terminals 23 and 24.
CAUTION:
Be careful not to overheat the harness.
Does actuator motor rotate?
YES
>> GO TO 9.
NO
>> Replace transfer control device.
9.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
OK or NG
OK
>> GO TO 10.
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.
10.
CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK
>> Inspection End.
NG
>> Replace transfer control unit. Refer to
DLN-93, "Removal and Installation"
.
Component Inspection
INFOID:0000000006179465
ACTUATOR MOTOR
1. Remove transfer control device. Refer to
DLN-98, "Removal and Installation"
2. Check operation by applying battery voltage to transfer control
device (actuator motor) terminals 23 and 24.
CAUTION:
Be careful not to overheat the harness.
3. If the inspection results are abnormal replace the transfer control
device.
TRANSFER RELAY
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Remove transfer shift high relay and transfer shift low relay. Refer to
DLN-12, "Component Parts Location"
.
3. Apply 12V direct current between transfer relay terminals 1 and 2.
Terminal
Actuator motor
24 (Battery voltage) - 23 (Ground)
Clockwise rotate
23 (Battery voltage) - 24 (Ground)
Counterclockwise rotate
SDIA2386E
Terminal
Actuator motor
24 (Battery voltage) - 23 (Ground)
Clockwise rotate
23 (Battery voltage) - 24 (Ground)
Counterclockwise rotate
SDIA2386E
DLN-46
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
P1817 ACTUATOR MOTOR
4. Check continuity between relay terminals 3 and 4, and 3 and 5.
5. If NG, replace transfer shift high or low relay.
Terminal
Condition
Continuity
3 - 4
12V direct current supply between terminals 1 and 2
No
OFF
Yes
3 - 5
12V direct current supply between terminals 1 and 2
Yes
OFF
No
WIIA0291E
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