Nissan Titan A60. Manual - part 274

P1813 4WD SHIFT SWITCH

DLN-35

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TX15B]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

3. Operate 4WD shift switch and check continuity between 4WD

shift switch terminals.

4. If the inspection results are abnormal replace the 4WD shift switch.

Component Inspection (With 2 Control Dial System or Auto A/C)

INFOID:0000000006179454

1. Turn ignition switch OFF.  (Stay for at least 5 seconds.)
2. Remove 4WD shift switch harness connector. 
3. Operate 4WD shift switch and check continuity between 4WD

shift switch terminals.

4. If the inspection results are abnormal replace the 4WD shift switch.

Terminal

Condition

Continuity

1 - 3

4WD shift switch: 2WD

Yes

4WD shift switch: 4H and 4LO

No

1 - 5

4WD shift switch: 4H

Yes

4WD shift switch: 2WD and 4LO

No

1 - 6

4WD shift switch: 4LO

Yes

4WD shift switch: 2WD and 4H

No

PDIA0212E

Terminal

Condition

Continuity

1 - 3

4WD shift switch: 2WD

Yes

4WD shift switch: 4H and 4LO

No

1 - 5

4WD shift switch: 4H

Yes

4WD shift switch: 2WD and 4LO

No

1 - 6

4WD shift switch: 4LO

Yes

4WD shift switch: 2WD and 4H

No

AWDIA0435ZZ

DLN-36

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TX15B]

P1814 WAIT DETECTION SWITCH

P1814 WAIT DETECTION SWITCH

Description

INFOID:0000000006179455

The wait detection switch detects if the transfer case is in 4WD.  DTC P1814 or flash code 10 will set if an

improper signal from the wait detection switch is input due to open or short circuit.

DTC Logic

INFOID:0000000006179456

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Perform self-diagnosis.
Is DTC P1814 or flash code 10 detected?

YES

>> Perform diagnosis procedure. Refer to 

DLN-36, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000006179457

Regarding Wiring Diagram information, refer to 

DLN-62, "Wiring Diagram"

.

1.

CHECK WAIT DETECTION SWITCH SIGNAL

With CONSULT-III

1. Start engine.

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

3. Read out the value of WAIT DETCT SW.

Without CONSULT-III

1. Start engine.

2. Check voltage between transfer control unit harness connector

terminal and ground.

OK or NG

DTC

CONSULT-III

Diagnostic item is detected when...

Reference

[P1814]

4WD DETECT SWITCH

Improper signal from wait detection 
switch is input due to open or short cir-
cuit.

DLN-36, "Diagnosis Procedure"

Condition

Display value

• Vehicle stopped
• Engine running
• A/T selector lever N position
• Brake pedal depressed

4WD shift switch: 4H and 4LO

ON

4WD shift switch: 2WD

OFF

Connector

Terminal

Condition

Voltage 

(Approx.)

E142

17 - 

Ground

• Vehicle stopped
• Engine running
• A/T selector lever 

N position

• Brake pedal de-

pressed

4WD shift switch
: 4H and 4LO

0V

4WD shift switch: 2WD

Battery 
voltage

SDIA3367E

P1814 WAIT DETECTION SWITCH

DLN-37

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TX15B]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

OK 

>> GO TO 5.

NG

>> GO TO 2.

2.

CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND WAIT DETECTION SWITCH

1. Turn ignition switch OFF.  (Stay for at least 5 seconds.)

2. Disconnect transfer control unit harness connector and the wait detection switch harness connector.

3. Check continuity between transfer control unit harness connec-

tor E142 terminal 17 and wait detection switch harness connec-

tor F59 terminal 10.

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.)

2. Disconnect wait detection switch harness connector.

3. Check continuity between wait detection switch harness con-

nector F59 terminal 11 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 WAIT DETECTION SWITCH 

1. Turn ignition switch OFF.  (Stay for at least 5 seconds.)

2. Disconnect wait detection switch harness connector.

3. Remove wait detection switch. Refer to 

DLN-12, "Component Parts Location"

.

4. Push and release wait detection switch and check continuity

between wait detection switch terminals 10 and 11.

OK or NG

OK

>> GO TO 5.

NG

>> Replace wait detection switch.

5.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to 

DLN-55, "Reference Value"

.

OK or NG

OK

>> GO TO 6.

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.

6.

CHECK DTC

Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG

Continuity should exist.

SDIA3368E

Continuity should exist.

PDIA0207E

Terminal

Condition

Continuity

10 - 11

Push wait detection switch

Yes

Release wait detection switch

No

PDIA0208E

DLN-38

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TX15B]

P1814 WAIT DETECTION SWITCH

OK

>> Inspection End.

NG

>> Replace transfer control unit. Refer to 

DLN-93, "Removal and Installation"

.

Component Inspection

INFOID:0000000006179458

1. Turn ignition switch OFF.  (Stay for at least 5 seconds.)
2. Disconnect wait detection switch harness connector.
3. Remove wait detection switch.  Refer to 

DLN-12, "Component Parts Location"

.

4. Push and release wait detection switch and check continuity

between wait detection switch terminals 10 and 11.

5. If the inspection results are abnormal replace the wait detection

switch.

Terminal

Condition

Continuity

10 - 11

Push wait detection switch

Yes

Release wait detection switch

No

PDIA0208E