Nissan Titan A60. Manual - part 276

P1817 ACTUATOR MOTOR

DLN-43

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TX15B]

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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]

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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 

DLN-55, "Reference Value"

.

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