Nissan Pathfinder (2011 year). Manual — part 81

BCS-30

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000006247469

Regarding Wiring Diagram information, refer to

BCS-48, "Wiring Diagram"

.

1.

CHECK FUSES AND FUSIBLE LINK

Check that the following fuses and fusible link are not blown.

Is the fuse blown?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit.

NO

>> GO TO 2

2.

CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM.

3. Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

CHECK GROUND CIRCUIT

Terminal No.

Signal name

Fuses and fusible link No.

57

Battery power supply

21 (10A)

70

G (50A)

11

Ignition ACC or ON

4 (10A)

38

Ignition ON or START

1 (10A)

Connector

Terminals

Power

source

Condition

Voltage (V) (Ap-

prox.)

(+)

(-)

M18

11

Ground

ACC

power

supply

Ignition

switch

ACC or

ON

Battery voltage

38

Ground

Ignition

power

supply

Ignition

switch ON

or START

Battery voltage

M20

57

Ground

Battery

power

supply

Ignition

switch

OFF

Battery voltage

70

Ground

Battery

power

supply

Ignition

switch

OFF

Battery voltage

LIIA2415E

2011 Pathfinder

BCS

POWER SUPPLY AND GROUND CIRCUIT

BCS-31

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Inspection End.

NO

>> Repair or replace harness.

BCM

Ground

Continuity

Connector

Terminal

M20

67

Yes

LIIA0915E

2011 Pathfinder

BCS-32

< DTC/CIRCUIT DIAGNOSIS >

COMBINATION SWITCH INPUT CIRCUIT

COMBINATION SWITCH INPUT CIRCUIT

Diagnosis Procedure

INFOID:0000000006247470

Regarding Wiring Diagram information, refer to

BCS-48, "Wiring Diagram"

.

1.

CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN

1. Turn ignition switch OFF.

2. Disconnect BCM and combination switch.

3. Check continuity between BCM harness connector and combi-

nation switch harness connector.

Does continuity exist?

YES

>> GO TO 2

NO

>> Repair or replace harness.

2.

CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT

Check for continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Repair or replace harness.

NO

>> GO TO 3

3.

CHECK BCM OUTPUT VOLTAGE

1. Connect BCM.

2. Turn ignition switch ON.

3. Check voltage between BCM harness connector and ground.

System

BCM

Combination switch

Continuity

Connector

Terminal

Connector

Terminal

INPUT 1

M18

(A)

6

M28

(B)

6

Yes

INPUT 2

5

7

INPUT 3

4

10

INPUT 4

3

9

INPUT 5

2

8

ALMIA0275ZZ

System

BCM

Ground

Continuity

Connector

Terminal

INPUT 1

M18

6

No

INPUT 2

5

INPUT 3

4

INPUT 4

3

INPUT 5

2

ALMIA0276ZZ

ALMIA0277ZZ

2011 Pathfinder

BCS

COMBINATION SWITCH INPUT CIRCUIT

BCS-33

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

Is the measurement value normal?

YES

>> GO TO 4

NO

>> Replace BCM. Refer to

BCS-55, "Removal and Installation"

.

4.

CHECK COMBINATION SWITCH

Check combination switch. Refer to

BCS-35, "Description"

.

Is the check result normal?

YES

>> Replace BCM. Refer to

BCS-55, "Removal and Installation"

.

NO

>> Replace the combination switch (applicable parts). Refer to

EXL-149, "Removal and Installation"

.

Special Repair Requirement

INFOID:0000000006247471

1.

ADDITIONAL SERVICE WHEN REPLACING BCM

>> Refer to

BCS-3, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair

Requirement"

.

System

Terminals

Voltage

(Approx.)

(+)

(

−

)

BCM

Ground

Connector

Terminal

INPUT 1

M18

6

Refer to

BCS-

37, "Refer-

ence Value"

.

INPUT 2

5

INPUT 3

4

INPUT 4

3

INPUT 5

2

2011 Pathfinder

BCS-34

< DTC/CIRCUIT DIAGNOSIS >

COMBINATION SWITCH OUTPUT CIRCUIT

COMBINATION SWITCH OUTPUT CIRCUIT

Diagnosis Procedure

INFOID:0000000006247472

Regarding Wiring Diagram information, refer to

BCS-48, "Wiring Diagram"

.

1.

CHECK OUTPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN

1. Turn ignition switch OFF.

2. Disconnect BCM and combination switch.

3. Check continuity between BCM harness connector and combi-

nation switch harness connector.

Does continuity exist?

YES

>> GO TO 2

NO

>> Repair or replace harness.

2.

CHECK OUTPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT

Check for continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Repair or replace harness.

NO

>> GO TO 3

3.

CHECK COMBINATION SWITCH

Check combination switch. Refer to

BCS-35, "Description"

.

Is the check result normal?

YES

>> Replace BCM. Refer to

BCS-55, "Removal and Installation"

.

NO

>> Replace combination switch (applicable parts). Refer to

EXL-149, "Removal and Installation"

.

Special Repair Requirement

INFOID:0000000006247473

1.

ADDITIONAL SERVICE WHEN REPLACING BCM

>> Refer to

BCS-3, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair

Requirement"

.

System

BCM

Combination switch

Continuity

Connector

Terminal

Connector

Terminal

OUTPUT 1

M18

(A)

36

M28

(B)

1

Yes

OUTPUT 2

35

2

OUTPUT 3

34

3

OUTPUT 4

33

4

OUTPUT 5

32

5

ALMIA0278ZZ

System

BCM

Ground

Continuity

Connector

Terminal

OUTPUT 1

M18

36

No

OUTPUT 2

35

OUTPUT 3

34

OUTPUT 4

33

OUTPUT 5

32

ALMIA0279ZZ

2011 Pathfinder

BCS

COMBINATION SWITCH

BCS-35

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

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L

B

A

O

P

N

COMBINATION SWITCH

Description

INFOID:0000000006247474

COMBINATION SWITCH MATRIX

Combination switch consists of INPUT circuit and OUTPUT circuit.

Combination switch circuit

Combination switch INPUT-OUTPUT system list

NOTE:

Headlamp has a dual system switch.

Diagnosis Procedure

INFOID:0000000006247475

1.

CHECK LIGHT & TURN SIGNAL SWITCH

Check operation with normal light & turn signal switch installed.
Does it operate normally?

YES

>> Replace light & turn signal switch. Refer to

EXL-149, "Removal and Installation"

.

NO

>> GO TO 2

2.

CHECK WIPER & WASHER SWITCH

Check operation with normal wiper & washer switch installed.
Does it operate normally?

YES

>> Replace wiper & washer switch. Refer to

WW-70, "Removal and Installation"

.

System

OUTPUT 1

OUTPUT 2

OUTPUT 3

OUTPUT 4

OUTPUT 5

INPUT 1

—

FR WASHER

FR WIPER LOW

TURN LH

TURN RH

INPUT 2

FR WIPER HI

—

FR WIPER INT

PASSING

HEADLAMP 1

INPUT 3

INT VOLUME 1

RR WASHER

—

HEADLAMP 2

HI BEAM

INPUT 4

RR WIPER INT

INT VOLUME 3

AUTO LIGHT

—

TAIL LAMP

INPUT 5

INT VOLUME 2

RR WIPER

—

FR FOG

—

LIIA0760E

2011 Pathfinder

BCS-36

< DTC/CIRCUIT DIAGNOSIS >

COMBINATION SWITCH

NO

>> GO TO 3

3.

CHECK SWITCH BASE (SPIRAL CABLE)

Check operation with normal switch base (spiral cable) installed.
Does it operate normally?

YES

>> Replace switch base (spiral cable). Refer to

SR-7, "Removal and Installation"

.

NO

>> Combination switch is normal.

2011 Pathfinder

BCS

BCM (BODY CONTROL MODULE)

BCS-37

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

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J

K

L

B

A

O

P

N

ECU DIAGNOSIS INFORMATION

BCM (BODY CONTROL MODULE)

Reference Value

INFOID:0000000006247476

NOTE:

The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II

User Guide for additional information.

• Activate and display TPMS transmitter IDs

• Display tire pressure reported by the TPMS transmitter

• Read TPMS DTCs

• Register TPMS transmitter IDs

• Check Intelligent Key relative signal strength

• Confirm vehicle Intelligent Key antenna signal strength

• Test remote keyless entry keyfob relative signal strength

VALUES ON THE DIAGNOSIS TOOL

Monitor Item

Condition

Value/Status

ACC ON SW

Ignition switch OFF or ON

Off

Ignition switch ACC

On

AIR COND SW

A/C switch OFF

Off

A/C switch ON

On

AIR PRESS FL

Front left tire air pressure value

kPa, kg/cm

2

, psi

AIR PRESS FR

Front right tire air pressure value

kPa, kg/cm

2

, psi

AIR PRESS RL

Rear left tire air pressure value

kPa, kg/cm

2

, psi

AIR PRESS RR

Rear right tire air pressure value

kPa, kg/cm

2

, psi

AUTO LIGHT SW

Lighting switch OFF

Off

Lighting switch AUTO

On

BACK DOOR SW

Back door closed

Off

Back door opened

On

BRAKE SW

Brake pedal released

Off

Brake pedal applied

On

BUCKLE SW

Seat belt buckle unfastened

Off

Seat belt buckle fastened

On

BUZZER

Buzzer in combination meter OFF

Off

Buzzer in combination meter ON

On

CDL LOCK SW

Door lock/unlock switch does not operate

Off

Press door lock/unlock switch to the LOCK side

On

CDL UNLOCK SW

Door lock/unlock switch does not operate

Off

Press door lock/unlock switch to the UNLOCK side

On

DOOR SW-AS

Front door RH closed

Off

Front door RH opened

On

DOOR SW-DR

Front door LH closed

Off

Front door LH opened

On

DOOR SW-RL

Rear door LH closed

Off

Rear door LH opened

On

DOOR SW-RR

Rear door RH closed

Off

Rear door RH opened

On

2011 Pathfinder