Infiniti QX56 (Z62). Manual - part 50

AV-54

< ECU DIAGNOSIS INFORMATION >

AV CONTROL UNIT

68

(R)

Ground

Composite image signal

Output

Ignition 

switch 

ON

At DVD image is displayed.

72

(Y/G)

Ground

Microphone VCC

Output

Ignition 

switch 

ON

—

5.0  V

73

(Y/G)

Ground

Communication signal
(CONT

→

DISP)

Output

Ignition 

switch 

ON

When adjusting display 
brightness.

74

(P)

—

CAN–L

Input/

Output

—

—

—

75

(LG)

—

AV communication signal 
(L)

Input/

Output

—

—

—

76

(LG)

—

AV communication signal 
(L)

Input/

Output

—

—

—

79

(L/O)

Ground

Dimmer signal

Input

Ignition 

switch 

ON

Either of the following con-
ditions
• Lighting switch is OFF
• Lighting switch is 1st or 

2nd, and the area around 
the vehicle is bright 
(shine a light on the opti-
cal sensor)

0 V

Lighting switch is 1st or 
2nd, and the area around 
the vehicle is dark (block 
the light from the optical 
sensor)

12.0 V

80

(GR/L)

Ground

Ignition signal

Input

Ignition 

switch 

ON

—

Battery voltage

81

(R/Y)

Ground

Reverse signal

Input

Ignition 

switch 

ON

Selector lever is in R posi-
tion.

12.0 V

Selector lever is in other 
than R position.

0 V

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/

Output

SKIB2251J

PKIB5039J

AV

AV CONTROL UNIT

AV-55

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

82

(BR/W)

Ground

Vehicle speed signal (8-
pulse) 

Input

Ignition 

switch 

ON

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

NOTE:
The maximum voltage varies de-
pending on the specification 
(destination unit).

83

—

Shield

—

—

—

—

84

(W/B)

Ground

Composite image synchro-
nizing signal

Output

Ignition 

switch 

ON

At DVD image is displayed.

87

(Y/L)

71

Microphone signal

Input

Ignition 

switch 

ON

Give a voice.

88

—

Shield

—

—

—

—

89

(Y/L)

Ground

Communication signal
(DISP

→

CONT)

Input

Ignition 

switch 

ON

When adjusting display 
brightness.

90

(L)

—

CAN–H

Input/

Output

—

—

—

91

(SB)

—

AV communication signal 
(H)

Input/

Output

—

—

—

92

(SB)

—

AV communication signal 
(H)

Input/

Output

—

—

—

104
(W)

119

(W/L)

AUX sound signal LH

Input

Ignition 

switch 

ON

When front AUX mode is 
selected.

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/

Output

JSNIA0012GB

SKIB2251J

PKIB5037J

PKIB5039J

SKIB3609E

AV-56

< ECU DIAGNOSIS INFORMATION >

AV CONTROL UNIT

106
(W)

120

(R)

Sound signal LH

Output

Ignition 

switch 

ON

When DVD or USB mode is 
selected on headrest dis-
play unit LH or RH.

107

(B)

121

(G)

Sound signal RH

Output

Ignition 

switch 

ON

When DVD or USB mode is 
selected on headrest dis-
play unit LH or RH.

117

—

Shield

—

—

—

—

118

(O)

119

(W/L)

AUX sound signal RH

Input

Ignition 

switch 

ON

When front AUX mode is 
selected.

122

—

Shield

—

—

—

—

129

(G)

—

USB ground

—

—

—

—

130

(R)

—

USB D

−

 signal

—

—

—

—

131
(W)

—

V BUS signal

—

—

—

—

132

(L)

—

USB D+ signal

—

—

—

—

133

—

Shield

—

—

—

—

150

—

FM sub

Input

—

—

—

151

—

AM-FM main

Input

—

—

—

152

Ground

Antenna amp. ON signal

Input

Ignition 

switch 

ON

—

12.0  V

153

Ground

GPS antenna signal

Input

Ignition 

switch 

ON

Not connected GPS anten-
na connector.

5.0 V

154

—

Shield

—

—

—

—

157

Ground

RGB digital image signal
(

−

)

Output

Ignition 

switch 

ON

Not connected connector.

1.3 V

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/

Output

SKIB3609E

SKIB3609E

SKIB3609E

AV

AV CONTROL UNIT

AV-57

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Fail-Safe

INFOID:0000000006216226

When the ambiance temperature becomes extremely low or extremely high, AV control unit displays the mes-
sage and limits the AV control unit function. 

FAIL-SAFE CONDITIONS

When the ambiance temperature is 

−

20

°

C (

−

4

°

F) or lower, or when it is 70

°

C (158

°

F) or higher

Display

The messages displayed on fail-safe conditions are as shown below:

DESCRIPTION OF CONTROLS

Ability Operation Mode 

There is an ability operation mode for Fail-safes due to low or high ambiance temperature.
If HDD data can be read, fail-safe is shown, then normal displays are displayed only for functions which can be
operated.

RELEASE CONDITIONS OF FAIL-SAFE 

Fail-safe is released on following conditions and normal mode is restored.

When The Temperature of HDD Is Low or High

If the ambient temperature becomes out of fail-safe condition range, normal mode is restored.

DTC Index

INFOID:0000000006216227

SELF-DIAGNOSIS RESULTS DISPLAY ITEM

158

Ground

RGB digital image signal
(+)

Output

Ignition 

switch 

ON

Not connected connector.

1.3 V

159

Ground

Satellite radio antenna sig-
nal

Input

Ignition 

switch 

ON

Not connected satellite an-
tenna connector.

5.0 V

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/

Output

Fail-safe mode

Display (display of the fail-safe condition)

When HDD temperature is low

HDD system is experiencing problems due to extreme low temperature.
Normal operation will resume when temperature rises.

When HDD temperature is high

HDD system is experiencing problems due to extreme high temperature.
Normal operation will resume when temperature drops.

Function

When Fail-safe Function is activated 

Air conditioner

Operation

Only multifunction switch (preset switch) can be operated.

Display

• LED of multifunction switch (preset switch) illuminates.
• Aimed temperature, blow angle, and flow rate are displayed in simplified mode. 

Audio

Operation

Only ON/OFF and volume control operations by multifunction switch (preset switch) are possible.

Display

No display (“Fail-safe mode” is displayed)

Camera

Operation

Image tone cannot be controlled.

Display

Cannot be superimposed. (warning display, tone control display)

Hands-free phone

Operation

Cannot be operated.

Navigation

Operation

Cannot be operated.

Self diagnosis

The display in simplified mode of fail-safe condition

CONSULT-III diagnosis

Cannot be operated.