Nissan Pathfinder (2011 year). Manual - part 210

DLN-218

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TX15B]

P1813 4WD SHIFT SWITCH

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

shift switch terminals.

Are the inspection results normal?

YES

>> GO TO 5.

NO

>> Replace 4WD shift switch.

5.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to 

DLN-238, "Reference Value"

.

Are the inspection results normal?

YES

>> GO TO 6.

NO

>> 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

Drive the vehicle and then perform self-diagnosis.
Is DTC P1813 displayed?

YES

>> Replace transfer control unit. Refer to 

DLN-277, "Removal and Installation"

.

NO

>> Inspection End.

Component Inspection

INFOID:0000000006245081

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

SDIA2805E

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

SDIA2805E

2011 Pathfinder

P1814 WAIT DETECTION SWITCH

DLN-219

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TX15B]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

P1814 WAIT DETECTION SWITCH

Description

INFOID:0000000006245082

The wait detection switch detects if the transfer case is in 4WD.  DTC P1814 will set if an improper signal from

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

DTC Logic

INFOID:0000000006245083

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Perform self-diagnosis.
Is DTC P1814 detected?

YES

>> Perform diagnosis procedure. Refer to 

DLN-219, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000006245084

Regarding Wiring Diagram information, refer to 

DLN-245, "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.

Are the inspection results normal?

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-219

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.)

M165

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

2011 Pathfinder

DLN-220

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TX15B]

P1814 WAIT DETECTION SWITCH

YES 

>> GO TO 5.

NO

>> 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 M165 terminal 17 and wait detection switch harness connec-

tor F73 terminal 10.

Also check harness for short to ground and short to power.

Is there continuity?

YES

>> GO TO 3.

NO

>> 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 F73 terminal 11 and ground.

Also check harness for short to power.

Is there continuity?

 YES  >> GO TO 4.

 NO

>> 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-198, "Component Parts Location"

.

4. Push and release wait detection switch and check continuity

between wait detection switch terminals 10 and 11.

Are the inspection results normal?

YES

>> GO TO 5.

NO

>> Replace wait detection switch.

5.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to 

DLN-238, "Reference Value"

.

Are the inspection results normal?

YES

>> GO TO 6.

NO

>> 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

Drive the vehicle and then perform self-diagnosis.
Is DTC P1814 displayed?

Continuity should exist.

SDIA3368E

Continuity should exist.

PDIA0207E

Terminal

Condition

Continuity

10 - 11

Push wait detection switch

Yes

Release wait detection switch

No

PDIA0208E

2011 Pathfinder

P1814 WAIT DETECTION SWITCH

DLN-221

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TX15B]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

YES

>> Replace transfer control unit. Refer to 

DLN-277, "Removal and Installation"

.

NO

>> Inspection End.

Component Inspection

INFOID:0000000006245085

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-198, "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

2011 Pathfinder

DLN-222

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TX15B]

P1816 PNP SWITCH

P1816 PNP SWITCH

Description

INFOID:0000000006245086

The transmission range switch transmits the A/T position indicator signal (transmission range switch signal)

via CAN communication to the transfer control unit.  DTC P1816 will set when the transmission range switch

signal is malfunctioning or there is a communication error.

DTC Logic

INFOID:0000000006245087

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Perform self-diagnosis.
Is DTC P1816 displayed?

YES

>> Perform diagnosis procedure. Refer to 

DLN-222, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000006245088

1.

CHECK DTC WITH TCM

Perform self-diagnosis with TCM. Refer to 

TM-36, "CONSULT-III Function (TRANSMISSION)"

.

Is any malfunction detected by self-diagnosis?

YES

>> Check the malfunctioning system.

NO

>> GO TO 2.

2.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to 

DLN-238, "Reference Value"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check transfer control unit pin terminals for damage or loose connection with harness connector.

If any items are damaged, repair or replace damaged parts.

3.

CHECK DTC

Drive the vehicle and then perform self-diagnosis.
Is DTC P1816 displayed?

YES

>> Perform self-diagnosis with TCM again.

NO

>> Inspection End.

DTC

CONSULT-III

Diagnostic item is detected when...

Reference

[P1816]

PNP SW/CIRC

When transmission range switch signal 
is malfunction or communication error 
between the modules.

DLN-222

2011 Pathfinder

P1817 ACTUATOR MOTOR

DLN-223

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TX15B]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

P1817 ACTUATOR MOTOR

Description

INFOID:0000000006245089

The actuator motor receives signals from the transfer control unit and controls shift rods which shift the trans-

fer case.  DTC P1817 will set when any of the following occur:

• Motor does not operate properly due to open or short circuit in actuator motor.

• Malfunction is detected in the actuator motor. (When 4WD shift switch is operated and actuator motor does

not operate)

• Malfunction is detected in transfer shift high relay or transfer shift low relay.

DTC Logic

INFOID:0000000006245090

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Perform self-diagnosis.
Is DTC P1817 detected?

YES

>> Perform diagnosis procedure. Refer to 

DLN-223, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000006245091

Regarding Wiring Diagram information, refer to 

DLN-245, "Wiring Diagram"

.

1.

CHECK ACTUATOR MOTOR 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 “SHIFT ACT1”, “SHIFT AC MON1”, “SHIFT ACT2”, “SHIFT AC MON2”.

DTC

CONSULT-III

Diagnostic item is detected when...

Reference

[P1817]

SHIFT ACTUATOR

• Motor does not operate properly due 

to open or short circuit in actuator mo-
tor.

• Malfunction is detected in the actuator 

motor. (When 4WD shift switch is op-
erated and actuator motor is not oper-
ated)

• Malfunction is detected in transfer shift 

high relay or transfer shift low relay.

DLN-223

2011 Pathfinder

DLN-224

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TX15B]

P1817 ACTUATOR MOTOR

Without CONSULT-III

1. Start engine.

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.

Monitored item

Condition

Display value

SHIFT ACT1

• Vehicle 

stopped

• Engine run-

ning

• A/T  selector 

lever “N” po-
sition

• Brake pedal 

depressed

4WD shift switch: 2WD to 
4H or 4H to 4LO or 2WD to 
4LO

ON

Except the above

OFF

SHIFT AC MON1

4WD shift switch: 2WD to 
4H or 4H to 4LO or 2WD to 
4LO

ON

Except the above

OFF

SHIFT ACT2

4WD shift switch: 4LO to 
4H or 4H to 2WD or 4LO to 
2WD

ON

Except the above

OFF

SHIFT AC MON2

4WD shift switch: 4LO to 
4H or 4H to 2WD or 4LO to 
2WD

ON

Except the above

OFF

Connector

Terminal

Condition

Voltage 

(Approx.)

M165

28 - 

Ground

When 4WD shift switch is operated (While 
actuator motor is operating.)

Battery 
voltage 

→

 

0V

When 4WD shift switch is not operated

0V

31 - 

Ground

Always

0V

42 - 

Ground

• Vehicle 

stopped

• Engine run-

ning

• A/T selector 

lever “N” po-
sition

• Brake pedal 

depressed

4WD shift switch: 2WD to 
4H or 4H to 4LO or 2WD to 
4LO

0V

Except the above

Battery 
voltage

M165

 47 - 

Ground

• Vehicle 

stopped

• Engine run-

ning

• A/T selector 

lever “N” po-
sition

• Brake pedal 

depressed

4WD shift switch: 2WD to 
4H or 4H to 4LO or 2WD to 
4LO

Battery 
voltage 

→

 

0V

Except the above

0V

 48 - 

Ground

4WD shift switch: 4LO to 
4H or 4H to 2WD or 4LO to 
2WD

Battery 
voltage 

→

 

0V

Except the above

0V

 50 - 

Ground

4WD shift switch: 4LO to 
4H or 4H to 2WD or 4LO to 
2WD

0V

Except the above

Battery 
voltage

WDIA0144E

2011 Pathfinder

P1817 ACTUATOR MOTOR

DLN-225

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TX15B]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

Are the inspection results normal?

YES 

>> GO TO 9.

NO

>> GO TO 2.

2.

CHECK ACTUATOR MOTOR POWER SUPPLY CIRCUIT

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 27 and ground.

4. Turn ignition switch “ON”.

5. Check voltage between transfer control unit harness connector

terminal 27 and ground.

Are the inspection results normal?

YES

>> GO TO 3.

NO

>> 1. Check harness for short or open between transfer

control unit harness connector M165 terminal 27

and transfer shut off relay 2 harness connector

E157 terminal 5 and 10A fuse (No. 57, located in the fuse and relay block). If any items are

damaged, repair or replace damaged parts.

2. Perform trouble diagnosis for power supply circuit. Refer to 

DLN-206, "Diagnosis Procedure"

.

3.

CHECK TRANSFER RELAY POWER SUPPLY CIRCUIT

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-198, "Component Parts Loca-

tion"

.

3. Check voltage between transfer shift high and transfer shift low

relay connector terminals and ground.

Connector

Terminal

Voltage (Approx.)

M165

27 - Ground

0V

SDIA2808E

Connector

Terminal

Voltage (Approx.)

M165

27 - Ground

Battery voltage

SDIA2807E

Connector

Terminal

Voltage (Approx.)

E44

2 - Ground

0V

E43

2 - Ground

0V

SDIA3384E

2011 Pathfinder