Nissan Titan A60. Manual - part 277

 

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Nissan Titan A60. Manual - part 277

 

 

P1818 ACTUATOR POSITION SWITCH

DLN-47

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TX15B]

C

E

F

G

H

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B

DLN

N

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P1818 ACTUATOR POSITION SWITCH

Description

INFOID:0000000006179466

The actuator position switch detects the current actuator motor range.  DTC P1818 or flash code 12 will set if

either of the following occur:

• Improper signal from actuator position switch is input due to open or short circuit.

• Malfunction is detected in actuator position switch.

DTC Logic

INFOID:0000000006179467

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Perform self-diagnosis.
Is DTC P1818 or flash code 12 detected?

YES

>> Perform diagnosis procedure. Refer to 

DLN-47, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000006179468

Regarding Wiring Diagram information, refer to 

DLN-62, "Wiring Diagram"

.

1.

CHECK ACTUATOR POSITION SWITCH SIGNAL

With CONSULT-III

1. Start engine.

2. Depress brake pedal and stop vehicle.

3. Set A/T selector lever to N position.

4. Select DATA MONITOR mode for ALL MODE AWD/4WD with CONSULT-III.

5. Read out the value of SHIFT POS SW1, SHIFT POS SW2, SHIFT POS SW3, SHIFT POS SW4.

Without CONSULT-III

1. Start engine.

DTC

CONSULT-III

Diagnostic item is detected when...

Reference

[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 po-

sition switch.

DLN-47, "Diagnosis Procedure"

Monitored item

Condition

Display value

SHIFT POS SW1

4WD shift switch: 2WD and 4LO

ON

4WD shift switch: 4H

OFF

SHIFT POS SW2

4WD shift switch: 4LO

ON

4WD shift switch: 2WD and 4H

OFF

SHIFT POS SW3

4WD shift switch: 2WD and 4H

ON

4WD shift switch: 4LO

OFF

SHIFT POS SW4

4WD shift switch: 4H and 4LO

ON

4WD shift switch: 2WD

OFF

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

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B

DLN

N

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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 

DLN-55, "Reference Value"

.

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-98, "Removal and Installation"

.

Continuity should exist.

SDIA2815E

DLN-50

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TX15B]

P1819 TRANSFER CONTROL DEVICE

P1819 TRANSFER CONTROL DEVICE

Description

INFOID:0000000006179469

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:0000000006179470

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 

DLN-50, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000006179471

Regarding Wiring Diagram information, refer to 

DLN-62, "Wiring Diagram"

.

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-III

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.

DLN-50, "Diagnosis Procedure"

Connector

Terminal

Voltage (Approx.)

E142

25 - Ground

0V

E143

27 - Ground

SDIA3371E

 

 

 

 

 

 

 

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