Nissan Pathfinder (2011 year). Manual — part 191

DLN-66

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: ATX14B]

P1823 2-4 SOLENOID

3. Check continuity between 4WD shift switch harness connector

M141 terminal 4 and transfer terminal cord assembly harness

connector F56 terminal 5.

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

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace damaged parts.

5.

CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND TRANSFER TERMINAL CORD AS-

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

2. Disconnect transfer control unit harness connector and transfer terminal cord assembly harness connec-

tor.

3. Check continuity between transfer control unit harness connec-

tor M152 terminal 1 and transfer terminal cord assembly har-

ness connector F56 terminal 4.

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 2-4WD SOLENOID

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

2. Disconnect transfer terminal cord assembly harness connector.

3. Check resistance between transfer terminal cord assembly ter-

minals 4 and 5.

OK or NG

OK

>> GO TO 7.

NG

>> 2-4WD solenoid is malfunctioning. Refer to

DLN-19,

"Component Parts Location"

.

7.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to

DLN-88, "Reference Value"

.

OK or NG

OK

>> GO TO 8.

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.

8.

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-140, "Removal and Installation"

.

Continuity should exist.

SDIA2731E

Continuity should exist.

SDIA2732E

4 - 5

: Approx. 22.8 - 25.2

Ω

SDIA3253E

2011 Pathfinder

P1823 2-4 SOLENOID

DLN-67

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Component Inspection

INFOID:0000000006244977

1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect transfer terminal cord assembly harness connector.
3. Check resistance between transfer terminal cord assembly ter-

minals 4 and 5.

4. If NG, replace the 2-4WD solenoid. Refer to

DLN-19, "Compo-

nent Parts Location"

.

4 - 5

: Approx. 22.8 - 25.2

Ω

SDIA3253E

2011 Pathfinder

DLN-68

< DTC/CIRCUIT DIAGNOSIS >

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P1824 TRANSFER MOTOR

P1824 TRANSFER MOTOR

Description

INFOID:0000000006244978

Motor does not operate properly due to open or short circuit in transfer motor or transfer motor relay.

DTC Logic

INFOID:0000000006244979

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Perform self-diagnosis.
Is DTC P1824 displayed?

YES

>> Perform diagnosis procedure. Refer to

DLN-68, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000006244980

Regarding Wiring Diagram information, refer to

DLN-100, "Wiring Diagram"

.

1.

CHECK TRANSFER MOTOR RELAY 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 “MOTOR RELAY” and “MOTOR RELAY MON”.

DTC

CONSULT-III

Diagnostic item is detected when...

Reference

[P1824]

MOTOR RELAY

Motor does not operate properly due to
open or short circuit in transfer motor or
transfer motor relay.

Refer to

DLN-68

.

Monitored

item

Condition

Display value

(Approx.)

MOTOR
RELAY

• Accelerator ped-

al depressed

• Vehicle stopped
• Engine running
• Brake pedal de-

pressed

4WD shift switch: 2WD

OFF

4WD shift switch: AUTO or
4LO (A/T selector lever “P” or
“N” position)

OFF
("ON" for ap-
prox. 2 sec. af-
ter shifting to
“P” and “N”.)

4WD shift switch: AUTO or
4LO (Except for A/T selector
lever “P” or “N” position)

ON

4WD shift switch: 4H (A/T se-
lector lever “P” position)

OFF
("ON" for ap-
prox. 2 sec. af-
ter shifting to
“P”.)

4WD shift switch: 4H (Except
for A/T selector lever “P” posi-
tion)

ON

2011 Pathfinder

P1824 TRANSFER MOTOR

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Without CONSULT-III

1. Start engine.

2. Check voltage between transfer control unit harness connector

terminal and ground.

MOTOR
RELAY
MON

• Accelerator ped-

al depressed

• Vehicle stopped
• Engine running
• Brake pedal de-

pressed

4WD shift switch: 2WD

OFF

4WD shift switch: AUTO or
4LO (A/T selector lever “P” or
“N” position)

OFF
("ON" for ap-
prox. 2 sec. af-
ter shifting to
“P” and “N”.)

4WD shift switch: AUTO or
4LO (Except for A/T selector
lever “P” or “N” position)

ON

4WD shift switch: 4H (A/T se-
lector lever “P” position)

OFF
("ON" for ap-
prox. 2 sec. af-
ter shifting to
“P”.)

4WD shift switch: 4H (Except
for A/T selector lever “P” posi-
tion)

ON

Monitored

item

Condition

Display value

(Approx.)

Connector

Terminal

Condition

Voltage (Approx.)

M152

14 -

Ground

• Accelera-

tor pedal
depressed

• Vehicle

stopped

• Engine

running

• Brake

pedal de-
pressed

4WD shift switch:
2WD

Battery voltage

4WD shift switch:
AUTO or 4LO (A/T
selector lever “P” or
“N” position)

Battery voltage
(0V for approx. 2
sec. after shifting
to “P” and “N”.)

4WD shift switch:
AUTO or 4LO (Ex-
cept for A/T selector
lever “P” or “N” posi-
tion)

0V

4WD shift switch: 4H
(A/T selector lever
“P” position)

Battery voltage
(0V for approx. 2
sec. after shifting
to “P”.)

4WD shift switch: 4H
(Except for A/T se-
lector lever “P” posi-
tion)

0V

SDIA2735E

2011 Pathfinder

DLN-70

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P1824 TRANSFER MOTOR

OK or NG

OK

>> GO TO 8.

NG

>> GO TO 2.

2.

CHECK TRANSFER MOTOR RELAY POWER SUPPLY CIRCUIT

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

2. Connect transfer control unit harness connector.

3. Disconnect transfer motor relay.

4. Check voltage between transfer motor relay harness connector

terminals and ground.

5. Turn ignition switch “ON”. (Do not start engine.)

6. Check voltage between transfer motor relay harness connector

terminals and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check the following. If any items are damaged, repair

or replace damaged parts.

• 20A fuse (No. 57, located in the fuse and relay box).

• 10A fuse (No. 59, located in the fuse and relay box).

• Harness for short or open between battery and transfer motor relay harness connector E154 ter-

minals 5.

M153

41 -

Ground

• Accelera-

tor pedal
depressed

• Vehicle

stopped

• Engine

running

• Brake

pedal de-
pressed

4WD shift switch:
2WD

0V

4WD shift switch:
AUTO or 4LO (A/T
selector lever “P” or
“N” position)

0V
(Battery voltage
for approx. 2 sec.
after shifting to “P”
and “N”.)

4WD shift switch:
AUTO or 4LO (Ex-
cept for A/T selector
lever “P” or “N” posi-
tion)

Battery voltage

4WD shift switch: 4H
(A/T selector lever
“P” position)

0V
(Battery voltage
for approx. 2 sec.
after shifting to
“P”.)

4WD shift switch: 4H
(Except for A/T se-
lector lever “P” posi-
tion)

Battery voltage

Connector

Terminal

Condition

Voltage (Approx.)

Connector

Terminal

Voltage (Approx.)

E153

2 - Ground

0V

E154

5 - Ground

Battery voltage

WDIA0169E

Connector

Terminal

Voltage (Approx.)

E153

2 - Ground

Battery voltage

E154

5 - Ground

Battery voltage

WDIA0170E

2011 Pathfinder

P1824 TRANSFER MOTOR

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• Harness for short or open between transfer shut off relay harness connector E155 terminal 5

and transfer motor relay harness connector E153 terminal 2.

• Battery and ignition switch.

3.

CHECK TRANSFER MOTOR RELAY

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

2. Remove transfer motor relay. Refer to

DLN-19, "Component Parts Location"

.

3. Apply 12V direct current between transfer motor relay terminals

1 and 2.

4. Check continuity between relay terminals 3 and 5.

OK or NG

OK

>> GO TO 4.

NG

>> Replace the transfer motor relay.

4.

CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND TRANSFER MOTOR RELAY

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

2. Disconnect transfer control unit harness connector.

3. Remove transfer motor relay.

4. Check continuity between the following terminals.

-

Transfer control unit harness connector M152 terminal 14 and

transfer motor relay harness connector E154 terminal 1.

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

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace damaged parts.

5.

CHECK TRANSFER MOTOR POWER SUPPLY CIRCUIT

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

2. Disconnect transfer control unit harness connector and transfer motor harness connector.

3. Remove transfer motor relay.

4. Check continuity between the following terminals.

-

Transfer control unit harness connector M153 terminal 41 and

transfer motor relay harness connector E154 terminal 3.

-

Transfer control unit harness connector M153 terminal 41 and

transfer motor harness connector F57 terminal 14.

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 TRANSFER MOTOR GROUND CIRCUIT

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

2. Disconnect transfer motor harness connector.

Condition

Continuity

12V direct current supply between terminals 1 and 2

Yes

OFF

No

LDIA0098E

Continuity should exist.

SDIA2738E

Continuity should exist.

SDIA3254E

2011 Pathfinder

DLN-72

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: ATX14B]

P1824 TRANSFER MOTOR

3. Check continuity between transfer motor harness connector F57

terminal 15 and ground.

Also check harness for short to power.

OK or NG

OK

>> GO TO 7.

NG

>> Repair open circuit or short to power in harness or con-

nectors.

7.

CHECK TRANSFER MOTOR

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

2. Disconnect transfer motor harness connector.

3. Apply 12V direct current between transfer motor terminals 14

and 15.

Does transfer motor operate?

YES

>> GO TO 8.

NO

>> Replace transfer motor. Refer to

DLN-152, "Removal

and Installation"

.

8.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to

DLN-88, "Reference Value"

.

OK or NG

OK

>> GO TO 9.

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.

9.

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-140, "Removal and Installation"

.

Component Inspection

INFOID:0000000006244981

TRANSFER MOTOR RELAY

1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Remove transfer motor relay. Refer to

DLN-19, "Component Parts Location"

.

3. Apply 12V direct current between transfer motor relay terminals

1 and 2.

4. Check continuity between relay terminals 3 and 5.

5. If inspection results are abnormal replace transfer motor relay.

TRANSFER MOTOR

Continuity should exist.

SDIA2740E

LDIA0097E

Condition

Continuity

12V direct current supply between terminals 1 and 2

Yes

OFF

No

LDIA0098E

2011 Pathfinder

P1824 TRANSFER MOTOR

DLN-73

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1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Remove transfer motor. Refer to

DLN-152, "Removal and Installation"

.

3. Apply 12V direct current between transfer motor terminals 14

and 15.

4. If transfer motor does not operate, replace transfer motor.

LDIA0097E

2011 Pathfinder