fuse INFINITI FX35 2005 User Guide

AV-8
AUDIO
Revision: 2005 July 2005 FX
System DescriptionAKS005T3
BASE SYSTEM
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times

through 15A fuse (No. 32, located in the fuse and fusible link block)

to audio unit terminal 6

to A/C and AV switch terminal 1

to display unit terminal 1 and

to option connector–2 for satellite radio receiver terminal 12.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 6, located in the fuse block (J/B)]

to audio unit terminal 10

to A/C and AV switch terminal 2

to display unit terminal 2 and

to option connector–2 for satellite radio receiver terminal 11.
Ground is supplied through the case of the audio unit.
Ground is also supplied

to A/C and AV switch terminal 5 and

to display unit terminal 6 and 15

through body ground M35, M45 and M85,

to option connector–2 for satellite radio receiver terminal 10

through body ground B203 and B210.
Audio unit, A/C and audio controller are connected by FPC (Flexible Print Circuit).
A/C and audio controller integrates A/C switches and audio switches.
When A/C and audio controller is pushed to audio switch, it sends audio signal to audio unit. Then audio sig-
nals are supplied

through audio unit terminals 1, 2, 3, 4, 13, 14, 15, and 16

to terminals 1 and 2 of front door speaker LH and RH

to terminals 1 and 2 of rear door speaker LH and RH and

to terminals 1 and 2 of instrument speaker LH and RH.
When one of audio steering wheel switch is pushed to volume up, seek up, or mode ON, resistance in steering
switch circuit changes depending on which button is pushed.
When one of audio steering wheel switch is pushed to volume down, seek down, or power ON, resistance in
audio steering wheel switch circuit changes depending on which button is pushed.
BOSE SYSTEM
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times

through 15A fuse (No. 32, located in the fuse and fusible link block)

to audio unit terminal 6

to woofer terminal 1

to A/C and AV switch terminal 1

to display control unit terminal 1 (with navigation system) or display unit terminal 1 (without navigation sys-
tem) and

to option connector–2 for satellite radio receiver terminal 12

through 20A fuse [No.17, located in the fuse block (J/B)]

to BOSE speaker amp. terminal 1.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 6, located in the fuse block (J/B)]

to audio unit terminal 10

to A/C and AV switch terminal 2

AV-40
AUDIO
Revision: 2005 July 2005 FX
Noise InspectionAKS005TC
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunction.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and opera-
tion of each piece of electrical equipment, and determine the cause.
NOTE:
The source of the noise can be found easily by listening to the noise while removing the fuses of electrical
components, one by one.
TYPE OF NOISE AND POSSIBLE CAUSE
Occurrence condition Possible cause
Occurs only when
engine is ON. A continuous growling noise occurs. The speed of the
noise varies with changes in the engine speed.

Ignition condenser
A whistling noise occurs while the engine speed is
high. A booming noise occurs while the engine is run-
ning and the lighting switch is ON.

Alternator
The occurrence of the noise is linked with the operation of the fuel pump.

Fuel pump condenser
Noise only occurs
when various elec-
trical components
are operating. A cracking or snapping sound occurs with the opera-
tion of various switches.

Relay malfunction, radio malfunction
The noise occurs when various motors are operating.

Motor case ground

Motor
The noise occurs constantly, not just under certain conditions.

Rear window defogger coil malfunction

Open circuit in printed heater

Poor ground of antenna amplifier or antenna feeder
line

Mirror type film is attached on the rear window glass

After-market TV antenna and/or electrical accessories
such as radio are attached on the rear window glass.
A cracking or snapping sound occurs while the vehicle is being driven,
especially when it is vibrating excessively.

Poor ground of audio parts

Poor ground due to incorrect installation of parts

Poor wiring connections or a short circuit

AUDIO AV-41
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Revision: 2005 July 2005 FX
Power Supply Circuit InspectionAKS005TD
1. CHECK FUSE
Check 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 the audio unit connector and ground.
2. Check voltage between BOSE speaker amp.connector or woofer connector 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 Te r m i n a l
(Wire color) Signal name Fuse No.
Audio unit 6 (W/L) Battery power supply 32
10(LG/R) ACC power supply 6
BOSE speaker amp. 1(R) Battery power supply 17
Woofer 1(G/R) Battery power supply 32
Unit Terminal No.
Ignition switch Voltage
(+)
(–)
Connector Terminal
(Wire color)
Audio
unit M58 6 (W/L) Ground OFF Battery voltage
10 (LG/R) Ground ACC Battery voltage
PKIA3814E
Unit Terminal No.
Ignition switch Voltag e
(+)
(–)
Connector Terminal
(Wire color)
BOSE
speaker
amp. B212 1 (R) Ground OFF Battery voltage
Woofer B223 1 (G/R) Ground OFF Battery voltage
SKIA8931E

AUDIO ANTENNA AV-51
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Revision: 2005 July 2005 FX
AUDIO ANTENNAPFP:28200
System DescriptionAKS007WE
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.

INTEGRATED DISPLAY SYSTEM AV-57
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INTEGRATED DISPLAY SYSTEMPFP:28090
System DescriptionAKS005U0
A/C AND AV SWITCH SYSTEM
Refer to Owner′s Manual for A/C and AV switch operating instructions.
Using the A/C and AV switch at the center of the instrument panel, the controls of the following systems are
centralized:

Integrated display system (Drive computer, setting screen, etc.)

Auto A/C system

Audio system
PRECAUTION OF LCD MONITOR

In order to use LED for backlight of a display, by interior temperature, brightness may change. In low tem-
perature, the refreshing rate of the picture also becomes low because of the low response of the LCD
monitor. When the interior becomes warm, however, the LCD recovers the normal display.

Backlight sometimes flickers or darkens according to the wearing out of LCD and the number of times
switched ON and OFF. In this case, display unit should be replaced. (Exchange only of backlight is impos-
sible.)
POWER SUPPLY AND GROUND
Power is supplied at all times

through 15A fuse (No. 32, located in fuse and fusible link box)

to audio unit terminal 6

to display unit terminal 1 and

to A/C and AV switch terminal 1.
When ignition switch is in ACC or ON position, power is supplied

through 10A fuse [No. 6, located in fuse block (J/B)]

to unified meter and A/C amp. terminal 35

to audio unit terminal 10

to display unit terminal 2 and

to A/C and AV switch terminal 2.
When ignition switch is in ON or START position, power is supplied

through 10A fuse [No. 12, located in fuse block (J/B)]

to unified meter and A/C amp. terminal 22 and

to display unit terminal 3.
Ground is supplied

to unified meter and A/C amp. terminals 29, 30

to display unit terminals 6 and 15 and

to A/C and AV switch terminal 5

through body grounds M35, M45 and M85.
Ground is supplied through the case of the audio unit.

INTEGRATED DISPLAY SYSTEM AV-79
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Revision: 2005 July 2005 FX
Power Supply and Ground Circuit Check for Display UnitAKS005UC
1. CHECK FUSE
Check if the following fuses in display unit are blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown be sure to eliminate case of malfunction before installing new fuse. Refer to PG-3,
"POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between display unit connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between display unit and fuse.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display unit connector.
3. Check continuity between display unit harness connector M62 terminals 6 (B), 15 (B) and ground.
OK or NG
OK >> INSPECTION END
NG >> Check ground harness.
Unit Power souse Fuse No.
Display Battery 32
Ignition switch ACC or ON 6
Ignition switch ON or START 12
Terminals Ignition switch position
(+) (–) OFF ACC ON
Connector Terminal
(Wire color)
M62 1 (W/L) Ground
Battery
voltage Battery
voltage Battery
voltage
2 (LG/R) Ground 0 V Battery
voltage Battery
voltage
SKIB0373E
Continuity should exist.
SKIA4986E

AV-80
INTEGRATED DISPLAY SYSTEM
Revision: 2005 July 2005 FX
Power Supply and Ground Circuit Check for A/C and AV SwitchAKS005UD
1. CHECK FUSE
Check if the following fuses in A/C and AV switch are blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown be sure to eliminate case of malfunction before installing new fuse. Refer to PG-3,
"POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between A/C and AV switch connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between A/C and AV switch and fuse.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect A/C and AV switch connector.
3. Check continuity between A/C and AV switch harness connector M64 terminal 5 (B) and ground.
OK or NG
OK >> INSPECTION END
NG >> Check ground harness.
Vehicle Speed Signal InspectionAKS005UE
1. VEHICLE SPEED OPERATION CHECK
Does speedometer is operated normally?
YES or NO
YES >> GO TO 2.
NO >> Check combination meter trouble diagnosis. Refer to DI-15, "
Trouble Diagnosis" .
Unit Power source Fuse No.
A/C and AV switch Battery 32
Ignition switch ACC or ON 6
Terminals Ignition switch position
(+) (–) OFF ACC ON
Connector Terminal
(Wire color)
M64 1 (W/L) Ground
Battery
voltage Battery
voltage Battery
voltage
2 (LG/R) Ground 0 V Battery
voltage Battery
voltage
SKIA8937E
Continuity should exist.
SKIA4988E

AV-82
INTEGRATED DISPLAY SYSTEM
Revision: 2005 July 2005 FX
Ignition Signal InspectionAKS005UG
1. CHECK IGNITION SIGNAL
1. Turn ignition switch ON.
2. Check voltage between display unit harness connector M62 ter- minal 3 (G/R) and ground.
OK or NG
OK >> Replace display unit.
NG >> Check harness for open or short between display unit and fuse.
Audio Communication Line InspectionAKS005UH
1. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect audio unit connector and display unit connector.
3. Check continuity between audio unit and display unit.
4. Check continuity between display unit and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK AUDIO COMMUNICATION SIGNAL(DSP–AUD)
1. Connect display unit connector.
2. Turn ignition switch ON.
3. Check voltage between display unit harness connector M62 ter- minal 8 (LG) and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace display unit. Battery voltage should exist.
SKIA9482E
Terminals
Continuity
Display unit Audio unit
Connector Terminal
(Wire color) Connector
Terminal
(Wire color)
M62 8 (LG)
M60 23 (LG)
Ye s
10 (B/Y) 21 (B/Y)
925
Terminals Continuity
Display unit
—
Connector Terminal (Wire color)
M62 8 (LG)
Ground No
10 (B/Y)
SKIA4994E
Approx. 3.5V or more
SKIA4396E

AV-142
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
Power Supply and Ground Circuit Check for NAVI Control UnitAKS007J5
1. CHECK FUSE
Make sure the following fuses of the NAVI control unit are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate case of malfunction before installing new fuse. Refer to PG-3,
"POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between connector terminals and ground as follows.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between NAVI control unit and fuse.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector.
3. Check continuity between the following NAVI control unit and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Terminals Power source Fuse No.
Connector Terminal (Wire color)
B208 2 (Y), 3 (Y) Battery power 32
6 (LG) ACC power 6
Terminals Ignition switch position
(+) (–) OFF ACC ON
Connector Te r m i n a l
(Wire color)
B208 2 (Y), 3 (Y)
Ground Battery
voltage Battery
voltage Battery
voltage
6 (LG) 0 V Battery
voltage Battery
voltage
SKIA8932E
Terminals Ignition switch Continuity
Connector Terminal (Wire color) Ground OFF Yes
B208 1 (B), 4 (B)
SKIA4037E

NAVIGATION SYSTEM AV-143
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Revision: 2005 July 2005 FX
Power Supply and Ground Circuit Check for Display Control UnitAKS007J6
1. CHECK FUSE
Make sure the following fuses of the display control unit are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate case of malfunction before installing new fuse. Refer to PG-3,
"POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between connector terminals and ground as follows.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between display control unit and fuse.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display control unit connector.
3. Check continuity between the following display control unit and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Terminals Power source Fuse No.
Connector Terminal (Wire color)
M75 1 (W/L) Battery power 32
10 (LG/R) ACC power 6
Terminals Ignition switch position
(+) (–) OFF ACC ON
Connector Terminal
(Wire color)
M75 1 (W/L)
Ground Battery
voltage Battery
voltage Battery
voltage
10 (LG/R) 0 V Battery
voltage Battery
voltage
SKIA8930E
Terminals Ignition switch Continuity
Cnnector Terminal (Wire color) Ground OFF Yes
M75 3 (B)
PKIA2855E