2007 INFINITI FX35 ACC

AUDIO AV-31
C
D E
F
G H
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J
L
M A
B
AV
Revision: 2006 July 2007 FX35/FX45
*: With satellite radio
Terminals and Reference Value for BOSE Speaker Amp.NKS003L9
Terminal
(Wire color) Item Signal
input/
output Condition
Reference value
+– Ignition
switch Operation
1 (R) Ground Battery power supply Input OFF — Battery voltage
9 (LG) 10 (B/Y) Audio signal rear door
speaker LH Output ACC Receive audio signal
11 (OR) 12 (B/P) Audio signal rear door
speaker RH Output ACC Receive audio signal
13 (L) 14 (B/W) Audio signal front door
speaker LH Output ACC Receive audio signal
15 (BR) 16 (B/R) Audio signal front door
speaker RH Output ACC Receive audio signal
17 (B) Ground Ground — ON — Approx. 0 V
18 (R/L) 2 (B) Audio signal instru-
ment speaker center Output ACC Receive audio signal
19 (W) 3 (B) Audio signal woofer Output ACC Receive audio signal
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E

AV-32
AUDIO
Revision: 2006 July 2007 FX35/FX45
20 (G) 4 (G/W) Audio signal tweeter Output ACC Receive audio signal
22 (P) Ground Amp ON signal
(woofer) Output ACC Receive audio signal Approx. 12 V
24 (L) 23 (B/W) Audio signal rear RH Input ACC Receive audio signal
26 (B/R) 25 (BR) Audio signal rear LH Input ACC Receive audio signal
28 (LG) 27 (PU) Audio signal front RH Input ACC Receive audio signal 30 (W) 29 (B) Audio signal front LH Input ACC Receive audio signal 31 (P) Ground BOSE speaker amp.
ON signal Input ACC — Approx. 12 V
Te r m i n a l
(Wire color) Item Signal
input/
output Condition
Reference value
+– Ignition
switch Operation
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E

AUDIO AV-33
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D E
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G H
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M A
B
AV
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Value for A/C and AV SwitchNKS003LA

*1: With telephone system

*2: Without telephone system Terminal
(Wire color) Item Signal
input/
output Condition
Reference value
+– Ignition
switch Operation
1 (W/L) Ground Battery power supply Input OFF — Battery voltage 2 (LG) Ground ACC power supply Input ACC — Battery voltage
5 (B) Ground Ground — ON — Approx. 0 V
6 (PU) Ground Communication
signal (+) Input/
Output ON —
7 — Shield — — — —
8 (LG) Ground Communication
signal (–) Input/
Output ON —
12 (R/W) Ground Steering SW A Input ON Press and hold PTT
*1
switch Approx. 0 V
Press and hold MODE
*2
switch Approx. 0 V
Press and hold SEEK UP
switch Approx. 1.7 V
Press and hold VOL UP
switch Approx. 3.3 V
Except for above Approx. 5 V
13 (G/W) Ground Steering SW B Input ON Press and hold MODE
*1
switch Approx. 0 V
Press and hold POWER
*2
switch Approx. 0 V
Press and hold SEEK
DOWN switch Approx. 1.7 V
Press and hold VOL DOWN
switch Approx. 3.3 V
Except for above Approx. 5 V
14 (B/Y) Ground Steering SW ground — ON — Approx. 0 V
SKIB7378E
SKIB7379E

AV-34
AUDIO
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Value for WooferNKS003AS
Terminals and Reference Value for Satellite Radio TunerNKS003LB
Te r m i n a l
(Wire color) Item Signal
input/
output Condition
Voltage
+– Ignition
switch Operation
1 (G/R) Ground Battery power supply Input OFF — Battery voltage 2 (B) Ground Ground — ON — Approx. 0 V
5 (P) Ground Amp ON signal Input ACC — Approx. 12 V
7 (W) 8 (B) Audio signal woofer Input ACC Receive audio signal
SKIB3609E
Te r m i n a l
(Wire color) Item Signal
input/
output Condition
Reference value
+– Ignition
switch Operation
2 (B) 1 (R) Satellite radio audio
signal LH Output ON Receive satellite radio audio
signal
4 (G) 3 (W) Satellite radio audio
signal RH Output ONReceive satellite radio audio
signal
5 — Shield — — — —
6 — Shield — — — —
8 (L) Ground Communication signal
REQ (SAT-AUDIO) Output ONWhen setting to satellite
radio mode
9 (L/R) Ground Communication signal
Tx (SAT-AUDIO) Output ON
When setting to satellite
radio mode
SKIB3609E
SKIB3609E
SKIB7338E
SKIB7337E

AUDIO AV-35
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G H
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M A
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AV
Revision: 2006 July 2007 FX35/FX45
A/C and AV Switch Self-Diagnosis FunctionNKS003AT
It can check ON/OFF operation of each switch in the A/C and AV switch and diagnose the input signals to the
audio steering wheel switch.
STARTING THE SELF-DIAGNOSIS MODE
1. Turn ignition switch from OFF to ACC.
2. Within 10 seconds press and hold the switches “1” and “6” simultaneously for 3 seconds.
DIAGNOSIS FUNCTION
The following are checked:

All the indicators (LED) in the A/C and AV switch.

Continuity of the switches by sounding the buzzer when the A/C and AV switch and audio steering wheel
switch is pressed.

Continuity of harness between A/C and AV switch and audio steering switch.
NOTE:
Rear window defogger switch operation is not checked. (No beep sound even under normal status)
EXITING THE SELF-DIAGNOSIS MODE

Turn ignition switch OFF.
10 (L/W) Ground Communication signal
Rx (AUDIO-SAT) Input ON When setting to satellite
radio mode
12 (Y) Ground Battery power supply Input OFF — Battery voltage
15 (B) Ground Ground — ON — Approx. 0 V
16 (P) Ground ACC power supply Input ACC — Battery voltage 17 — Satellite radio antenna — — — — Terminal
(Wire color) Item Signal
input/
output Condition
Reference value
+– Ignition
switch Operation
SKIB7336E
SKIB8660E

AUDIO AV-37
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B
AV
Revision: 2006 July 2007 FX35/FX45
Power Supply Circuit InspectionNKS003AW
1. CHECK FUSE
Make sure that the following fuses of the BOSE speaker amp., woofer, and audio unit are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Check voltage between audio unit harness connector terminals and ground.
2. Check voltage between BOSE speaker amp. harness connector terminal or woofer harness connector terminal and ground.
OK or NG
OK >>
INSPECTION END (Audio unit is OK.)

GO TO 3. (BOSE speaker amp. and woofer)
NG >> Repair harness or connector between each unit and fuse.
Unit Terminal Signal name Fuse No.
Audio unit 6 Battery power supply 32
10 ACC power supply 6
BOSE speaker amp. 1 Battery power supply 17
Woofer 1 Battery power supply 32
Terminals Ignition
switch Voltag e
(+)
(–)
Connector Terminal
M58 6 Ground OFF Battery voltage
10 Ground ACC Battery voltage
PKIA3814E
Terminals Ignition
switch Voltag e
(+)
(–)
Connector Terminal
B212 1 Ground OFF Battery voltage
B223 1 Ground OFF Battery voltage
SKIA8931E

AUDIO AV-41
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B
AV
Revision: 2006 July 2007 FX35/FX45
2. CHECK AMP. ON SIGNAL
1. Connect audio unit connector.
2. Turn ignition switch ACC.
3. Check voltage between audio unit harness connector M59 ter- minal 12 and ground.
OK or NG
OK >> INSPECTION END (System is OK.)
NG >> Replace audio unit.
Vehicle Speed Signal InspectionNKS003B0
1. CHECK VEHICLE SPEED OPERATION
Start engine and drive vehicle.
Dose speedometer is operated normally?
YES >> GO TO 2.
NO >> Check combination meter trouble diagnosis. Refer to DI-16, "
Trouble Diagnosis" .
2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect audio unit and unified meter and A/C amp. connectors.
3. Check continuity between audio unit harness connector M60 ter- minal 22 and unified meter and A/C amp. harness connector
M56 terminal 34.
4. Check continuity between audio unit harness connector M60 ter- minal 22 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector. 12 – Ground : Approx. 12 V
SKIA6818E
22 – 34 : Continuity should exist.
22 – Ground : Continuity should not exist.
SKIA6807E

AV-48
ANTENNA
Revision: 2006 July 2007 FX35/FX45
ANTENNAPFP:28200
System DescriptionNKS003LP
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.