Infiniti QX56 (JA60). Manual - part 76

AV-112

< ECU DIAGNOSIS >

[AUDIO SYSTEM]

AV CONTROL UNIT

21

(W)

24

RGB signal (R: red)

Output

Ignition 

switch 

ON

Start confirmation/adjust-
ment mode, and then dis-
play color bar by selecting 
“Color Spectrum Bar” on 
DISPLAY DIAGNOSIS 
screen.

22

(B)

24

RGB signal (G: green)

Output

Ignition 

switch 

ON

Start confirmation/adjust-
ment mode, and then dis-
play color bar by selecting 
“Color Spectrum Bar” on 
DISPLAY DIAGNOSIS 
screen.

23

(R)

24

RGB signal (B: blue)

Output

Ignition 

switch 

ON

Start confirmation/adjust-
ment mode, and then dis-
play color bar by selecting 
“Color Spectrum Bar” on 
DISPLAY DIAGNOSIS 
screen.

24

Ground RGB signal ground

—

Ignition 

switch 

OFF

—

0V

25

(W)

26

RGB synchronizing signal

Output

Ignition 

switch 

ON

—

26

Ground

RGB synchronizing signal 
ground

—

Ignition 

switch 

ON

—

0V

27

(O)

Ground RGB area (YS) signal

Output

Ignition 

switch 

ON

At RGB image displayed

5V

At rear view camera image 
displayed

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/

Output

SKIB2238J

SKIB2236J

SKIB2237J

SKIB3603E

PKIB4948J

AV

AV CONTROL UNIT

AV-113

< ECU DIAGNOSIS >

[AUDIO SYSTEM]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

28

(W/L)

Ground

Horizontal synchronizing 
(HP) signal

Input

Ignition 

switch 

ON

—

29

(O/L)

Ground

Vertical synchronizing (VP) 
signal

Input

Ignition 

switch 

On

—

30

(V)

Ground

Communication signal
(CONT

→DISP)

Output

Ignition 

switch 

ON

When adjusting display 
brightness

31

(LG)

Ground

Communication signal
(DISP

→CONT)

Input

Ignition 

switch 

ON

When adjusting display 
brightness

32

—

Shield

—

—

—

—

39

(W)

55

(B)

DVD audio signal LH

Input

Ignition 

switch 

ON

When DVD player is oper-
ating

40

(R)

56

(G)

DVD audio signal RH

Input

Ignition 

switch 

ON

When DVD player is oper-
ating

45

(SB)

Ground CD/DVD eject signal

Input

—

Pressing the eject switch

0V

Except for above

3.3V

46

—

Shield

—

—

—

—

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/

Output

SKIB3601E

SKIB3598E

PKIB5039J

PKIB5039J

SKIB3609E

SKIB3609E

AV-114

< ECU DIAGNOSIS >

[AUDIO SYSTEM]

AV CONTROL UNIT

47

(W)

48

(R)

AUX jack audio signal LH

Input

Ignition 

switch 

ON

When AUX mode is select-
ed

58

(O/L)

42

(W)

Headphone LH audio sig-
nal

Output

Ignition 

switch 

ON

When DVD player is oper-
ating

59

(W/L)

43

(O)

Headphone RH audio sig-
nal

Output

Ignition 

switch 

ON

When DVD player is oper-
ating

60

—

Shield

—

—

—

—

62

(B)

Ground

A/C and AV switch assem-
bly ground

—

Ignition 

switch 

ON

—

0V

63

(B)

48

(R)

AUX jack audio signal RH

Input

Ignition 

switch 

ON

When AUX mode is select-
ed

65

(B)

Ground Ground

—

Ignition 

switch 

ON

—

0V

66

(Y)

Ground Battery power supply

Input

Ignition 

switch 

OFF

—

Battery voltage

67

(B)

Ground Ground

—

Ignition 

switch 

ON

—

0V

68

(Y)

Ground Battery power supply

Input

Ignition 

switch 

OFF

—

Battery voltage

69

(V)

Ground ACC power supply

Input

Ignition 

switch 

ACC

—

Battery voltage

70

(W)

Ground MIC power 

Output

Ignition 

switch 

ON

—

5V

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/

Output

SKIB3609E

SKIB3609E

SKIB3609E

SKIB3609E

AV

AV CONTROL UNIT

AV-115

< ECU DIAGNOSIS >

[AUDIO SYSTEM]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

72

(B)

71

MIC signal

Input

Ignition 

switch 

ON

—

—

79

(G/R)

Ground

IGN ON or START power 
supply

Input

Ignition 

switch 

ON or 

START

—

Battery voltage

80

(G)

Ground Parking brake signal

Input

Ignition 

switch 

ON

Parking brake ON

0V

Parking brake OFF

Battery voltage

81

(G/W)

Ground Reverse signal

Input

Ignition 

switch 

ON

R position

Battery voltage

Other than R position

0V

82

(W/R)

Ground

Vehicle speed signal (8-
pulse) 

Input

Ignition 

switch 

ON

When vehicle speed is ap-
prox. 40 km/h (25MPH)

84

(BR)

—

Rear view camera control 
signal

Input

—

—

—

86

(B)

Ground Ground

—

Ignition 

switch 

ON

—

0V

87

(B)

Ground Ground

—

Ignition 

switch 

ON

—

0V

92

(L/W)

—

AV communication signal 2 
(H)

Input/

Output

—

—

—

93

(B/P)

—

AV communication signal 2 
(L)

Input/

Output

—

—

—

94

(W/L)

—

AV communication signal 1 
(H)

Input/

Output

—

—

—

95

(P/B)

—

AV communication signal 1 
(L)

Input/

Output

—

—

—

96

(L)

—

CAN–H

Input/

Output

—

—

—

97

(P)

—

CAN–L

Input/

Output

—

—

—

121 (B)

Ground Antenna amp. ON signal

Output

Ignition 

switch 

ACC

—

Battery voltage

122 (B)

—

Amplified window antenna 
signal

Input

—

—

—

123

—

GPS antenna signal

—

—

—

—

124

—

Shield

—

—

—

—

125

—

Satellite antenna signal

Input

Ignition 

switch 

ACC

—

—

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/

Output

SKIA6649J