Infiniti QX56 (Z62). Manual - part 106

BCS-38

< ECU DIAGNOSIS INFORMATION >

BCM

TERMINAL LAYOUT

PHYSICAL VALUES

JMMIA0323ZZ

BCS

BCM

BCS-39

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

−

2

(BR/Y)

Ground

Combination switch 
INPUT 5

Input

Combination 
switch
(Wiper volume 
dial 4)

All switches OFF

0 V

Turn signal switch RH

1.0 V

Lighting switch HI

Lighting switch 1ST

Lighting switch 2ND

2.0 V

3

(GR)

Ground

Combination switch 
INPUT 4

Input

Combination 
switch
(Wiper volume 
dial 4)

All switches OFF

0 V

Turn signal switch LH

1.0 V

Lighting switch PASS

Lighting switch 2ND

Front fog lamp switch ON

0.8 V

4

(L)

Ground

Combination switch 
INPUT 3

Input

Combination 
switch
(Wiper volume 
dial 4)

All switches OFF

0 V

Front wiper switch LO

1.0 V

Front wiper switch MIST

Front wiper switch AUTO

Lighting switch AUTO

PKIB4958J

JPMIA0342JP

PKIB4958J

PKIB4956J

PKIB4958J

BCS-40

< ECU DIAGNOSIS INFORMATION >

BCM

5

(G)

Ground

Combination switch 
INPUT 2

Input

Combination 
switch

All switches OFF
(Wiper volume dial 4)

0 V

Front washer switch ON
(Wiper volume dial 4)

1.0 V

Rear washer switch ON
(Wiper volume dial 4)

Any of the condition below 
with all switches OFF
• Wiper volume dial 1
• Wiper volume dial 5
• Wiper volume dial 6

Rear wiper switch ON
(Wiper volume dial 4)

0.8 V

6

(V)

Ground

Combination switch 
INPUT 1

Input

Combination 
switch

All switches OFF
(Wiper volume dial 4)

0 V

Front wiper switch HI
(Wiper volume dial 4)

1.0 V

Rear wiper switch INT
(Wiper volume dial 4)

Wiper volume dial 3
(All switches OFF)

Any of the condition below 
with all switches OFF
• Wiper volume dial 1
• Wiper volume dial 2

1.9 V

Any of the condition below 
with all switches OFF
• Wiper volume dial 6
• Wiper volume dial 7

0.8 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

−

PKIB4958J

PKIB4956J

PKIB4958J

PKIB4952J

PKIB4956J

BCS

BCM

BCS-41

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

8

(V)

Ground

Power window 
switch communica-
tion

Input/

Output

Ignition switch ON

9.0 - 10 V

9

(R)

Ground

Stop lamp switch 1

Input

Stop lamp 
switch

OFF (Brake pedal is not 
depressed)

0 V

ON (Brake pedal is de-
pressed)

Battery voltage

11

(R)

Ground

Light and rain sensor 
serial link

Input/

Output

Ignition switch OFF

12 V

Ignition switch ON

8.0 - 9.0 V

14

(P/B)

Ground

Optical sensor

Input

Ignition switch 
ON

When bright outside of the 
vehicle

Close to 5 V

When dark outside of the 
vehicle

Close to 0 V

16

(L/O)

Ground

Dimmer signal

Output

Ignition switch 
ON

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

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

0 V

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

12 V

17

(Y/G)

Ground

Sensor power sup-
ply

Output

Ignition switch

OFF, ACC

0 V

ON

5 V

18

(B/Y)

Ground

Receiver and sensor 
ground

Input

Ignition switch ON

0 V

19

(BR)

Ground

Remote keyless en-
try receiver power 
supply

Output

Ignition switch OFF

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

−

PKIA7023E

JPMIA0156GB

JMKIA3838GB