Nissan Pathfinder (2005 year). Instruction — part 431

TROUBLE DIAGNOSIS FOR SYSTEM

TF-67

[ATX14B]

C

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TF

2005 Pathfinder

2.

CHECK 4WD SHIFT SWITCH POWER SUPPLY CIRCUIT

1.

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

2.

Disconnect 4WD shift switch harness connector.

3.

Check voltage between 4WD shift switch harness connector ter-
minal 1 and ground.

4.

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

5.

Check voltage between 4WD shift switch harness connector ter-
minal 1 and ground.

OK or NG

OK

>> GO TO 3.

NG

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

replace damaged parts.

●

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

●

Power suppy circuit for transfer control unit. Refer to

TF-57, "Power Supply Circuit For Transfer

Control Unit"

.

3.

CHECK HARNESS BETWEEN 4WD SHIFT SWITCH AND TRANSFER CONTROL UNIT

1.

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

2.

Disconnect transfer control unit harness connector and the 4WD shift switch harness connector.

3.

Check continuity between the following terminals.

–

Transfer control unit harness connector M152 terminal 9 and
4WD shift switch harness connector M141 terminal 2.

–

Transfer control unit harness connector M152 terminal 18 and
4WD shift switch harness connector M141 terminal 5.

–

Transfer control unit harness connector M152 terminal 23 and
4WD shift switch harness connector M141 terminal 6.

–

Transfer control unit harness connector M152 terminal 24 and
4WD shift switch harness connector M141 terminal 3.

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

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace damaged parts.

Connector

Terminal (Wire color)

Voltage (Approx.)

M141

1 - Ground

0V

WDIA0183E

Connector

Terminal (Wire color)

Voltage (Approx.)

M141

1 - Ground

Battery voltage

WDIA0184E

Continuity should exist.

WDIA0185E

TF-68

[ATX14B]

TROUBLE DIAGNOSIS FOR SYSTEM

2005 Pathfinder

4.

CHECK 4WD SHIFT SWITCH

1.

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

2.

Disconnect 4WD shift switch harness connector.

3.

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

OK or NG

OK

>> GO TO 5.

NG

>> Replace 4WD shift switch.

5.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to

TF-38, "Transfer Control Unit Input/Output Signal Ref-

erence Values"

.

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

OK

>> Inspection End.

NG

>> Replace transfer control unit. Refer to

TF-134, "Removal and Installation"

.

Connector

Terminal

Condition

Continuity

M141

1 - 2

4WD shift switch: 2WD

Yes

4WD shift switch: AUTO, 4H and
4LO

No

1 - 3

4WD shift switch: AUTO

Yes

4WD shift switch: 2WD, 4H and
4LO

No

1 - 4

4WD shift switch: 2WD

No

4WD shift switch: AUTO, 4H and
4LO

Yes

1 - 5

4WD shift switch: 4H

Yes

4WD shift switch: 2WD, AUTO,
and 4LO

No

1 - 6

4WD shift switch: 4LO

Yes

4WD shift switch: 2WD, AUTO
and 4H

No

WDIA0168E

TROUBLE DIAGNOSIS FOR SYSTEM

TF-69

[ATX14B]

C

E

F

G

H

I

J

K

L

M

A

B

TF

2005 Pathfinder

COMPONENT INSPECTION

1.

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

2.

Disconnect 4WD shift switch harness connector.

3.

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

4.

If NG, replace the 4WD shift switch.

Wait Detection Switch

EDS001JG

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Data are reference value.

TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE

Data are reference value and are measured between each terminal and ground.

CAUTION:

When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.

Connector

Terminal

Condition

Continuity

M141

1 - 2

4WD shift switch: 2WD

Yes

4WD shift switch: AUTO, 4H and
4LO

No

1 - 3

4WD shift switch: AUTO

Yes

4WD shift switch: 2WD, 4H and
4LO

No

1 - 4

4WD shift switch: 2WD

No

4WD shift switch: AUTO, 4H and
4LO

Yes

1 - 5

4WD shift switch: 4H

Yes

4WD shift switch: 2WD, AUTO,
and 4LO

No

1 - 6

4WD shift switch: 4LO

Yes

4WD shift switch: 2WD, AUTO
and 4H

No

WDIA0168E

Monitored item

Content

Condition

Display value

WAIT DETCT SW [ON/
OFF]

Condition of wait detection
switch

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N”
position

●

Brake pedal depressed

4WD shift switch: 2WD,
AUTO or 4H

OFF

4WD shift switch: 4H to
4LO (While actuator
motor is operating.)

OFF

→

ON

4WD shift switch: 4LO to
4H (While actuator motor
is operating.)

ON

→

OFF

4WD shift switch: 4LO

ON

Terminal

Wire

color

Item

Condition

Data (Approx.)

43

O

Wait detection switch

●

Vehicle stopped

●

Engine running

●

A/T selector
lever “N” position

●

Brake pedal
depressed

4WD shift switch: 2WD, AUTO or 4H

Battery voltage

4WD shift switch: 4H to 4LO (While actua-
tor motor is operating.)

Battery volt-
age

→

0V

4WD shift switch: 4LO to 4H (While actua-
tor motor is operating.)

0V

→

Battery

voltage

4WD shift switch: 4LO

0V

TF-70

[ATX14B]

TROUBLE DIAGNOSIS FOR SYSTEM

2005 Pathfinder

DIAGNOSTIC PROCEDURE

1.

CHECK WAIT DETECTION SWITCH SIGNAL

With CONSULT-II

1.

Start engine.

2.

Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-II.

3.

Read out the value of “WAIT DETCT SW”.

Without CONSULT-II

1.

Start engine.

2.

Check voltage between transfer control unit harness connector
terminal and ground.

OK or NG

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 M153 terminal 43 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.

Condition

Display value

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N” position

●

Brake pedal depressed

4WD shift switch: 2WD, AUTO
or 4H

OFF

4WD shift switch: 4H to 4LO
(While actuator motor is operat-
ing.)

OFF

→

ON

4WD shift switch: 4LO to 4H
(While actuator motor is operat-
ing.)

ON

→

OFF

4WD shift switch: 4LO

ON

PDIA0221E

Connector

Terminal

(Wire

color)

Condition

Voltage

(Approx.)

M153

43 -

Ground

●

Vehicle stopped

●

Engine running

●

A/T selector lever
“N” position

●

Brake pedal
depressed

4WD shift switch:
2WD, AUTO or 4H

Battery
voltage

4WD shift switch: 4H
to 4LO (While actua-
tor motor is operating.)

Battery
voltage

→

0V

4WD shift switch: 4LO
to 4H (While actuator
motor is operating.)

0V

→

Battery
voltage

4WD shift switch: 4LO

0V

SDIA2701E

Continuity should exist.

SDIA2702E

TROUBLE DIAGNOSIS FOR SYSTEM

TF-71

[ATX14B]

C

E

F

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A

B

TF

2005 Pathfinder

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

TF-24, "Location of Electrical Parts"

.

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. Refer to

TF-24, "Loca-

tion of Electrical Parts"

.

5.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to

TF-38, "Transfer Control Unit Input/Output Signal Ref-

erence Values"

.

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

OK

>> Inspection End.

NG

>> Replace transfer control unit. Refer to

TF-134, "Removal and Installation"

.

Continuity should exist.

SDIA2703E

Terminal

Condition

Continuity

10 - 11

Push wait detection switch

Yes

Release wait detection switch

No

WDIA0186E

TF-72

[ATX14B]

TROUBLE DIAGNOSIS FOR SYSTEM

2005 Pathfinder

COMPONENT INSPECTION

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

TF-24, "Location of Electrical Parts"

.

4.

Push and release wait detection switch and check continuity
between wait detection switch terminals 10 and 11.

5.

If NG, replace the wait detection switch. Refer to

TF-24, "Loca-

tion of Electrical Parts"

.

PNP Switch Signal (TCM)

EDS001JH

DIAGNOSTIC PROCEDURE

1.

CHECK DTC WITH TCM

Perform self-diagnosis with TCM. Refer to

TF-53, "SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)"

.

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

TF-38, "Transfer Control Unit Input/Output Signal Ref-

erence Values"

.

OK or NG

OK

>> GO TO 3.

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.

3.

CHECK DTC

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

OK or NG

OK

>> Inspection End.

NG

>> Perform self-diagnosis with TCM again. Refer to

TF-53, "SELF-DIAGNOSTIC PROCEDURE

(WITH CONSULT-II)"

.

Terminal

Condition

Continuity

10 - 11

Push wait detection switch

Yes

Release wait detection switch

No

WDIA0186E

TROUBLE DIAGNOSIS FOR SYSTEM

TF-73

[ATX14B]

C

E

F

G

H

I

J

K

L

M

A

B

TF

2005 Pathfinder

Actuator Motor

EDS001JI

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Data are reference value.

TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE

Data are reference value and are measured between each terminal and ground.

CAUTION:

When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.

Monitored item

Content

Condition

Display value

SHIFT ACT1 [ON/OFF]

Output condition to
actuator motor (High)

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N”
position

●

Brake pedal depressed

4WD shift switch: 4H to
4LO (“Wait” function is
operating.)

ON

Except the above

OFF

SHIFT AC MON1 [ON/OFF]

Check signal for trans-
fer control unit signal
output

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N”
position

●

Brake pedal depressed

4WD shift switch: 4H to
4LO (“Wait” function is
operating.)

ON

Except the above

OFF

SHIFT ACT2 [ON/OFF]

Output condition to
actuator motor (Low)

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N”
position

●

Brake pedal depressed

4WD shift switch: 4LO to
4H (“Wait” function is
operating.)

ON

Except the above

OFF

SHIFT AC MON2 [ON/OFF]

Check signal for trans-
fer control unit signal
output

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N”
position

●

Brake pedal depressed

4WD shift switch: 4LO to
4H (“Wait” function is
operating.)

ON

Except the above

OFF

Terminal

Wire

color

Item

Condition

Data (Approx.)

4

SB

Transfer shift high relay

●

Vehicle stopped

●

Engine running

●

A/T selector
lever “N” position

●

Brake pedal
depressed

4WD shift switch: 4H to 4LO (“Wait” func-
tion is operating.)

Battery voltage

Except the above

0V

13

G

Transfer shift low relay

●

Vehicle stopped

●

Engine running

●

A/T selector
lever “N” position

●

Brake pedal
depressed

4WD shift switch: 4LO to 4H (“Wait” func-
tion is operating.)

Battery voltage

Except the above

0V

33

GR

Transfer shift high relay moni-
tor

●

Vehicle stopped

●

Engine running

●

A/T selector
lever “N” position

●

Brake pedal
depressed

4WD shift switch: 4H to 4LO (“Wait” func-
tion is operating.)

Battery voltage

Except the above

0V

42

Y

Transfer shift low relay moni-
tor

●

Vehicle stopped

●

Engine running

●

A/T selector
lever “N” position

●

Brake pedal
depressed

4WD shift switch: 4LO to 4H (“Wait” func-
tion is operating.)

Battery voltage

Except the above

0V

TF-74

[ATX14B]

TROUBLE DIAGNOSIS FOR SYSTEM

2005 Pathfinder

DIAGNOSTIC PROCEDURE

1.

CHECK ACTUATOR MOTOR SIGNAL

With CONSULT-II

1.

Start engine.

2.

Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-II.

3.

Read out the value of “SHIFT ACT1”, “SHIFT AC MON1”,
“SHIFT ACT2” and “SHIFT AC MON2”.

Without CONSULT-II

1.

Start engine.

2.

Check voltage between transfer control unit harness connector
terminal and ground.

Monitored

item

Condition

Display

value

SHIFT ACT1

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N” posi-
tion

●

Brake pedal depressed

4WD shift switch: 4H
to 4LO (“Wait” func-
tion is operating.)

ON

Except the above

OFF

SHIFT AC
MON1

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N” posi-
tion

●

Brake pedal depressed

4WD shift switch: 4H
to 4LO (“Wait” func-
tion is operating.)

ON

Except the above

OFF

SHIFT ACT2

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N” posi-
tion

●

Brake pedal depressed

4WD shift switch:
4LO to 4H (“Wait”
function is operat-
ing.)

ON

Except the above

OFF

SHIFT AC
MON2

●

Vehicle stopped

●

Engine running

●

A/T selector lever “N” posi-
tion

●

Brake pedal depressed

4WD shift switch:
4LO to 4H (“Wait”
function is operat-
ing.)

ON

Except the above

OFF

Connector

Terminal

(Wire

color)

Condition

Voltage

(Approx.)

M152

4 -

Ground

●

Vehicle stopped

●

Engine running

●

A/T selector lever
“N” position

●

Brake pedal
depressed

4WD shift switch: 4H
to 4LO (“Wait” function
is operating.)

Battery
voltage

Except the above

0V

13 -

Ground

●

Vehicle stopped

●

Engine running

●

A/T selector lever
“N” position

●

Brake pedal
depressed

4WD shift switch: 4LO
to 4H (“Wait” function
is operating.)

Battery
voltage

Except the above

0V

PDIA0223E

SDIA2705E