Infiniti F50. Manual - part 164

AUDIO

AV-21

C

D

E

F

G

H

I

J

L

M

A

B

AV

16 (Y)

Ground

Communica-
tion signal (+)

Input/

output

ON

-

System does not 
work properly.

52 (R/L)

51 (R/W)

CD sound 
signal (LH)

Input

ON

Play  CD.

CD sound is not 
heard from 
speaker LH.

54 (LG)

53 (PU)

CD sound 
signal (RH)

Input

ON

Play  CD.

CD sound is not 
heard from 
speaker RH.

55

-

Shield ground 
(signal)

-

-

-

-

-

56

-

Shield ground 
(signal)

-

-

-

-

-

58 (Y)

Ground

Communica-
tion signal 
(CHG REQ)

Input

ON

Insert/eject CD.

CD auto changer 
operation is not 
possible.

59 (L)

Ground

Communica-
tion signal 
(CHG-HU)

Input

ON

Insert/eject CD.

CD auto changer 
operation is not 
possible.

60 (G)

Ground

Communica-
tion signal 
(HU-CHG)

Output

ON

Press the CD 
switch.

CD auto changer 
operation is not 
possible.

Terminal No.

Item

Signal 

input/

output

Condition

Voltage

Example of symp-

tom

+

-

Ignition 

switch

Operation

SKIA0175E

SKIA0177E

SKIA0177E

SKIA0196E

SKIA0197E

SKIA0198E

AV-22

AUDIO

NOTE:
1.

With NAVI and for Canada with rear control switch.

2.

Without NAVI.

71 (R/L)

Ground

Illumination 
signal

Input

OFF

Lighting switch 
is ON (1st posi-
tion).

Battery voltage

Audio unit illumi-
nation does not 
come on when 
lighting switch is 
ON (1st position).

Turn lighting 
switch OFF.

Approx. 3.0V or less

72 (L/OR)

Ground

ACC power

Input

ACC

-

Battery voltage

Audio unit opera-
tion is not possi-
ble.

73 (SB)

Ground

Battery power

Input

OFF

-

Battery voltage

Cassette tape 
player operation is 
not possible.

75 (P/L)

Ground

Radio 
antenna amp. 
ON signal

Output

ON

-

Approx.10V or more

Receiving status 
of radio broadcast 
becomes bad.

76 (SB) 

Note1 

(LG) 

Note2

Ground

Illumination 
control signal

Input

ON

Illumination 
control switch is 
operated by 
lighting switch 
in 1st position.

Changes between approx. 0 and 

approx. 12V.

Audio unit illumi-
nation cannot be 
controlled. 

78

-

Shield
(Audio sound 
signal)

-

-

-

-

-

80 (BR)

79 (Y)

Audio sound 
signal (LH)

Output

ON

Play cassette 
tape.

Audio sound is not 
heard from 
speaker LH.

82 (B)

81 (W)

Audio sound 
signal (RH)

Output

ON

Play cassette 
tape.

Audio sound is not 
heard from 
speaker RH.

Terminal No.

Item

Signal 

input/

output

Condition

Voltage

Example of symp-

tom

+

-

Ignition 

switch

Operation

SKIA0177E

SKIA0177E

AUDIO

AV-23

C

D

E

F

G

H

I

J

L

M

A

B

AV

Terminals and Reference Value for CD Auto Changer

EKS0012U

Terminal No.

Signal 

name

Signal 

input/

output

Condition

Voltage

Example of symptom

+

-

Ignition 

switch

Operation

2 (R/L)

1 (R/W)

CD sound 
signal (LH)

Output

ON

Play CD.

CD sound is not 
heard from speaker 
LH.

4 (LG)

3 (PU)

CD sound 
signal (RH)

Output

ON

Play CD.

CD sound is not 
heard from speaker 
RH.

6

-

Shield
(CD sound 
signal)

-

-

-

-

-

8 (Y)

Ground

Communi-
cation sig-
nal (REQ)

Output

ON

Insert/eject t CD.

CD auto changer 
operation is not pos-
sible.

9 (L)

Ground

Communi-
cation sig-
nal (TXD)

Output

ON

Insert/eject CD.

CD auto changer 
operation is not pos-
sible.

10 (G)

Ground

Communi-
cation sig-
nal (RXD)

Input

ON

Press the CD 
switch.

CD auto changer 
operation is not pos-
sible.

12 

(SB)

Ground

Battery 
power

Input

OFF

-

Battery voltage

CD auto changer 
operation is not pos-
sible.

13 

(SB)

Ground

Illumination
control sig-
nal

Input

ON

illumination con-
trol switch is oper-
ated by lighting 
switch in 1st posi-
tion

 Changer between approx. 0 and 

approx.12V

-

SKIA0177E

SKIA0177E

SKIA0196E

SKIA0197E

SKIA0198E

AV-24

AUDIO

Terminals and Reference Value for Rear Control Switch

EKS001JO

Terminals and Reference Value for Rear Control Cancel Switch

EKS006H5

Self-Diagnosis Function

EKS006RK

DESCRIPTION 

●

Diagnosis function consists of the self-diagnosis mode, and the “CONFIRMATION/ADJUSTMENT” mode.

●

Self-diagnosis mode checks for connection among audio unit, and CD auto changer and analyzes each
unit, then displays the results.

●

“CONFIRMATION/ADJUSTMENT” function analyzes each speaker.(without navigation system)

14 (R/

L)

Ground

Illumination 
signal

Input

OFF

Lighting switch is 
ON (1st position)

Battery voltage

-

Turn lighting 
switch OFF

Approx. 3.0V or less

-

15 (B)

Ground

Ground

-

ON

-

Approx. 0V

-

16 (L/

OR)

Ground

ACC power

Input

ACC

-

Battery voltage

CD auto changer 
operation is not pos-
sible.

Terminal No.

Signal 

name

Signal 

input/

output

Condition

Voltage

Example of symptom

+

-

Ignition 

switch

Operation

TERMINALS

ITEM

CONDITION

DATA (DC)

(+)

(–)

TERMINAL

WIRE 

COLOR

Ignition 

switch

Operation

1

L/Y

Ground

ACC Power

ACC

Rear control cancel 

switch is ON

(position ON)

Ground battery voltage

12

B

Ground

Ground

ON

—

Approx. 0V

10

Y

Ground

Rear control switch 
communication sig-
nal

ON

Operate the rear 
control switch.

SKIA0199J

Terminal No.

Signal 

name

Signal 

input/

output

Condition

Voltage

Example of symptom

+

-

Ignition 

switch

Operation

3 (G)

Ground

Acc power

Output

ACC

Rear control can-
cel switch is ON 
(position ON)

Battery voltage

-

Rear control can-
cel switch is OFF 
(position CAN-
CEL)

Approx. 0V

-

4 (P/B)

Ground

Acc power

Input

ACC

-

Battery voltage

Rear control switch 
operation does not 
work.