Infiniti FX35 / FX45. Manual - part 148

AV-46

< SERVICE INFORMATION >

ANTENNA

ANTENNA

System Description

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With the ignition switch in ACC or ON, power is supplied
• through 10A fuse [No. 6, located in the fuse block (J/B)]
• to audio unit terminal 10.
Ground is supplied through the case of the antenna amp.
When the radio switch is turned ON, antenna signal is supplied
• through audio unit terminal 5
• to the antenna amp. 
Then the antenna amp. is activated.
The amplified radio signals are supplied to the audio unit through the antenna amp.

ANTENNA

AV-47

< SERVICE INFORMATION >

C

D

E

F

G

H

I

J

L

M

A

B

AV

N

O

P

Wiring Diagram - M/ANT -

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TKWM4403E

AV-48

< SERVICE INFORMATION >

ANTENNA

Terminal and Reference Value for Audio Unit

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Antenna Amp. Inspection

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1.

CHECK ANTENNA FEEDER

Check with visual observation if antenna feeder between audio unit and antenna amp. has disconnection or
malfunction on the mounting part (engagement, looseness of shield earth, etc.).

OK or NG

OK

>> GO TO 2

NG

>> Replace antenna feeder.

2.

CHECK ANTENNA SIGNAL

1.

Turn ignition switch ACC.

2.

Check voltage between audio unit harness connector M58 ter-
minal 5 and ground.

OK or NG

OK

>> INSPECTION END (System is OK.)

NG

>> Replace audio unit.

Terminal

(Wire color)

Item

Signal 

input/ 

output

Condition

Reference value

+

–

Ignition 

switch

Operation

5 (R/W)

Ground

Antenna signal

Input

ACC

—

Approx. 12 V

10 (LG)

Ground

ACC power
supply

Input

ACC

—

Battery voltage

5 – Ground

: Approx. 12 V

SKIA6854E

ANTENNA

AV-49

< SERVICE INFORMATION >

C

D

E

F

G

H

I

J

L

M

A

B

AV

N

O

P

Location of Antenna

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RADIO ANTENNA AND GPS ANTENNA

SATELLITE RADIO ANTENNA

Window Antenna Repair

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CHECK ELEMENT

PKIB5079E

SKIB8640E