2006 INFINITI FX35 Ac system

AV-8
AUDIO
Revision: 2006 December 2006 FX35/FX45
Schematic — AUDIO — / With Navigation SystemNKS003AL
TKWM4382E

AUDIO AV-9
C
D E
F
G H
I
J
L
M A
B
AV
Revision: 2006 December 2006 FX35/FX45
Wiring Diagram — AUDIO — / With Navigation SystemNKS003AM
TKWM4383E

AUDIO AV-19
C
D E
F
G H
I
J
L
M A
B
AV
Revision: 2006 December 2006 FX35/FX45
Schematic — AUDIO — Without Navigation SystemNKS003AN
TKWM4393E

AV-20
AUDIO
Revision: 2006 December 2006 FX35/FX45
Wiring Diagram — AUDIO — / Without Navigation SystemNKS003AO
TKWM4394E

AUDIO AV-33
C
D E
F
G H
I
J
L
M A
B
AV
Revision: 2006 December 2006 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-36
AUDIO
Revision: 2006 December 2006 FX35/FX45
Trouble DiagnosisNKS003LC

The majority of the audio malfunctions are the result of outside causes (bad CD, electromagnetic interfer-
ence, etc.). Check the symptoms below to diagnose the malfunction.

The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunction-
ing. Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and
operation of each piece of electrical equipment, and then determine the cause.

Make sure that other operation except audio system can be performed with A/C and AV switch. If these
operations are inoperative with A/C and AV switch, refer to AV- 8 4 , "
Unable to Operate System with A/C
and AV Switch" (Without navigation system), or AV- 1 3 9 , "Unable to Operate System with A/C and AV
Switch" (With navigation system).

Refer to "SERVICE BULLETIN ITB04-055" for the diagnosis of satellite radio.
NOTE:
Noise resulting from variations in field strength, such as fading noise and multi-path noise, or external noise
from trains and other sources. It is not a malfunction.

Fading noise: This noise occurs because of variations in the field strength in a narrow range due to moun-
tains or buildings blocking the signal.

Multi-path noise: This noise results from a time difference between the broadcast waves directly from the
station arriving at the antenna and the waves reflected by mountains or buildings.
Symptom Possible malfunction location
Audio system does not work properly.

Audio unit power supply circuit

Communication signal circuit between audio unit and display control unit

A/C and AV switch

Audio unit
No sound can be heard from all speakers.

BOSE speaker amp. power supply and ground circuit

BOSE speaker amp. ON signal circuit

Audio unit

BOSE speaker amp.
No sound can be heard from one or several speakers.

Audio signal circuit between audio unit and BOSE speaker amp.

Audio signal circuit between BOSE speaker amp. and speaker

Speaker

Tw e e te r

Audio unit

BOSE speaker amp.
No sound can be heard from woofer.

Audio signal circuit between BOSE speaker amp. and woofer

Woofer

BOSE speaker amp.
No sound can be heard from radio or noise is caught.

Antenna amp. ON signal circuit

Antenna feeder

Roof antenna

Antenna amp.

Audio unit
Audio steering switch does not operate properly.

Remote control signal circuit between audio steering switch and A/C and
AV switch

Audio steering switch

Spiral cable

TEL adapter unit (With telephone system)

A/C and AV switch

AV-38
AUDIO
Revision: 2006 December 2006 FX35/FX45
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BOSE speaker amp. and woofer connectors.
3. Check continuity between BOSE speaker amp. harness connec- tor B212 terminal 17 and ground.
4. Check continuity between woofer harness connector B223 ter- minal 2 and ground.
OK or NG
OK >> INSPECTION END (System is OK.)
NG >> Repair harness or connector.
Audio Steering Wheel Switch InspectionNKS003AX
1. CHECK A/C AND AV SWITCH SELF-DIAGNOSIS FUNCTION
1. Start A/C and AV switch self-diagnosis function. Refer to AV- 3 5 , "
A/C and AV Switch Self-Diagnosis Func-
tion" .
2. Operate audio steering wheel switch.
Does audio steering wheel switch operate normally?
YES >> INSPECTION END
NO >>

GO TO 2. (Without telephone system)

GO TO 3. (With telephone system)
2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect A/C and AV switch and spiral cable connectors.
3. Check continuity between A/C and AV switch harness connector M64 terminals 12, 13, 14 and spiral cable harness connector
M15 terminals 24, 32, 31.
4. Check continuity between A/C and AV switch and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector. 17 – Ground : Continuity should exist.
SKIA4312E
2 – Ground : Continuity should exist.
SKIB8692E
12 – 24 : Continuity should exist.
13 – 32 : Continuity should exist.
14 – 31 : Continuity should exist.
12, 13, 14 – ground : Continuity should not exist.
SKIA5955E

AV-40
AUDIO
Revision: 2006 December 2006 FX35/FX45
6. CHECK AUDIO STEERING WHEEL SWITCH RESISTANCE
Check resistance audio steering wheel switch terminals.

*1: Without telephone system

*2: With telephone system
OK or NG
OK >> INSPECTION END
NG >> Replace audio steering wheel switch.
A/C and AV Switch InspectionNKS003AY
1. A/C AND AV SWITCH SELF-DIAGNOSIS FUNCTION
1. Start A/C and AV switch self-diagnosis function. Refer to AV- 3 5 , "
A/C and AV Switch Self-Diagnosis Func-
tion" .
2. Operate A/C and AV switch.
Does the A/C and AV switch is operated normally?
YES >> INSPECTION END (System is OK)
NO >> Replace A/C and AV switch.
BOSE Speaker Amp. InspectionNKS003AZ
1. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect audio unit and BOSE speaker amp. connectors.
3. Check continuity between audio unit harness connector M59 ter- minal 12 and BOSE speaker amp. harness connector B213 ter-
minal 31.
4. Check continuity between audio unit harness connector M59 ter- minal 12 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
Terminal Signal name Condition Resistance
( Ω )
16 17 Power
*1Depress power switch. Approx. 0
Mode
*2Depress mode switch. Approx. 0
Seek down Depress (station) down switch. Approx. 165
Volume (down) Depress volume down switch. Approx. 652
20 Mode
*1Depress mode switch. Approx. 0
PTT
*2Depress PTT switch. Approx. 0
Seek up Depress (station) up switch. Approx. 165
Volume (up) Depress volume up switch. Approx. 652
SKIA5010E
12 – 31 : Continuity should exist.
12 – Ground : Continuity should not exist.
SKIA6816E