Nissan Pathfinder. Manual - part 212

BCS

BCM

BCS-37

< ECU DIAGNOSIS INFORMATION >

[BCM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

14

(P)

Ground

Combination switch 
input 1

Input

Combination 
switch
(Wiper intermit-
tent dial 4)

OFF

0V

FR WIPER HI

1.0V

INT VOLUME 1

RR WIPER INT

INT VOLUME 2

17

(R)

Ground

Auto light reference 
ground

Input

Push-button ignition switch ON

0V

18

(V)

Ground Security indicator

Output Security indicator

ON

0V

Blinking

11.3V

OFF

Battery voltage

19

(Y)

Ground

Central door lock sw 
signal

Input

Door lock/unlock 
switch

Lock

Battery voltage

Unlock

0V

20

(W)

Ground Shift P

Input

Selector lever

P position

0V

Any position other than P

Battery voltage

21

(W)

Ground Step lamp control

Output Step lamp

ON

0V

OFF

Battery voltage

24

(SB)

Ground

Door key/c unlock sw 
signal

Input

Key cylinder 
switch

OFF (neutral)

5V

ON (unlock)

0V

25

(W)

Ground Brake switch fuse

Input

—

Battery voltage

26

(L)

Ground Shorting input

Input

Push-button ignition switch OFF

Battery voltage

27

(G)

Ground Brake switch lamp

Input

Stop lamp switch

OFF (brake pedal is not de-
pressed)

0V

ON (brake pedal is de-
pressed)

Battery voltage

30

(P)

Ground

Driver door lock sta-
tus

Input

Front door LH

LOCK status

11.8V

UNLOCK status

0V

32

(R)

Ground Rr def sw signal

Input

Rear window de-
fogger switch

OFF

5V

ON

0V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

(+)

(-)

PKIB4958J

JPMIA0014GB

JPMIA0011GB

BCS-38

< ECU DIAGNOSIS INFORMATION >

[BCM]

BCM

34

(BR)

Ground

Central door unlock 
sw signal

Input

Door lock/unlock 
switch

Unlock

Battery voltage

Lock

0V

36

(W)

Ground Hazard switch

Input

Hazard switch

Pressed

0 V

Not pressed

1.1V

39

(G)

Ground Shift N/P

Input

Selector lever

P or N position

Battery voltage

Except P and N positions

0V

48

(R)

Ground

High side start switch 
LED

Output

Push-button igni-
tion switch illumi-
nation

ON

5.5V

OFF

0V

52

(W)

Ground Audio dongle

Input/

Output

Push-button ignition switch OFF

5V

54

(W)

Ground

Power window link/
communication

Input/

Output

Push-button igni-
tion switch

ON

10.2V

OFF or ACC

0V

59

(P)

Ground CAN low

Input/ 

Output

—

—

60

(L)

Ground CAN high

Input/ 

Output

—

—

61

(BG)

Ground

Rear defogger relay 
output

Output

Rear window de-
fogger

Activated

Battery voltage

Not activated

0V

62

(W)

Ground Starter relay output

Output

Push-button igni-
tion switch ON

When selector lever is in P 
or N position and the brake 
is depressed

Battery voltage

When selector lever is in P 
or N position and the brake 
is not depressed

0V

63

(BG)

Ground I-Key link signal

Output

Push-button ignition switch OFF 

→ ON, after 

unlocking door by 1st key registered to BCM

5V

Push-button ignition switch OFF 

→ ON, after 

unlocking door by 2nd key registered to BCM

0V

64

(P)

Ground Buzzer output

Output

Outside warning 
buzzer

Sounding

0V

Not sounding

Battery voltage

66

(W)

Ground

Blower fan relay out-
put

Output

Push-button igni-
tion switch

OFF or ACC

0V

ON

Battery voltage

67

(G)

Ground

Ignition electrical re-
lay output 2

Output

Push-button igni-
tion switch

OFF or ACC

0V

ON

Battery voltage

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

(+)

(-)

JPMIA0012GB

JPMIA0013GB

BCS

BCM

BCS-39

< ECU DIAGNOSIS INFORMATION >

[BCM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

68

(P)

Ground Dimmer signal output

Output

Push-button igni-
tion switch ON

Either of the following con-
ditions
• Lighting switch OFF
• The area around the ve-

hicle is bright (Shine a 
light on the optical sen-
sor)

0V

The area around the vehi-
cle is dark (Block the light 
from the optical sensor)

Battery voltage

69

(G)

Ground CVT device output

Output

—

Battery voltage

70

(P)

Ground

IPDM E/R ignition 
output 1

Output

Push-button igni-
tion switch

OFF or ACC

0V

ON

Battery voltage

71

(R)

Ground Driver request switch

Input

Front door LH re-
quest switch

ON (pressed)

0V

OFF (not pressed)

1.0V

72

(G)

Ground

Passenger request 
switch

Input

Front door RH re-
quest switch

ON (pressed)

0V

OFF (not pressed)

1.0V

74

(BR)

Ground

Door key/c lock sw 
signal

Input

Front door lock 
assembly LH (key 
cylinder switch)

OFF (neutral)

5V

ON (lock)

0V

75

(BG)

Ground

Combination switch 
output 5

Output

Combination 
switch
(Wiper intermit-
tent dial 4)

OFF

7.0 – 8.0V

INT VOLUME 2

1.2V

RR WIPER ON

FR FOG

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

(+)

(-)

JPMIA0016GB

JPMIA0016GB

PKIB4960J

PKIB4958J

BCS-40

< ECU DIAGNOSIS INFORMATION >

[BCM]

BCM

76

(P)

Ground

Combination switch 
output 4

Output

Combination 
switch
(Wiper intermit-
tent dial 4)

OFF

7.0 – 8.0V

RR WIPER INT

1.2V

INT VOLUME 3

AUTO LIGHT

TAIL LAMP

77

(R)

Ground

Combination switch 
output 3

Output

Combination 
switch
(Wiper intermit-
tent dial 4)

OFF

7.0 – 8.0V

INT VOLUME 1

1.2V

RR WASHER

HEADLAMP 2

HI BEAM

78

(G)

Ground

Combination switch 
output 2

Output

Combination 
switch
(Wiper intermit-
tent dial 4)

OFF

7.0 – 8.0V

FR WIPER HI

1.2V

FR WIPER INT/AUTO

PASSING

HEADLAMP 1

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

(+)

(-)

PKIB4960J

PKIB4958J

PKIB4960J

PKIB4958J

PKIB4960J

PKIB4958J