Infiniti FX35 / FX45. Manual — part 137

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SUPPLEMENTAL RESTRAINT SYSTEM”.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

AV-4

< SERVICE INFORMATION >

PREPARATION

PREPARATION

Commercial Service Tool

INFOID:0000000001328671

Tool name

Description

Power tool

Loosening bolts and nuts

PBIC0191E

AUDIO

AV-5

< SERVICE INFORMATION >

AUDIO

System Description

INFOID:0000000001328672

AUDIO 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 control unit terminal 1
• to woofer terminal 1
• to satellite radio tuner terminal 12 (With satellite radio) and
• to option connector–2 for satellite radio tuner terminal 12 (Without satellite radio),
• 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
• to display control unit terminal 10
• to satellite radio tuner terminal 16 (With satellite radio) and
• to option connector–2 for satellite radio tuner terminal 11 (Without satellite radio).
Ground is supplied through the case of the audio unit.
Ground is also supplied
• to BOSE speaker amp. terminal 17
• to woofer terminal 2
• to satellite radio tuner terminal 15 (With satellite radio) and
• to option connector–2 for satellite radio receiver terminal 10 (Without satellite radio)
• through body ground B203 and B210,
• to A/C and AV switch terminal 5
• to display control unit terminals 3,13 and
• to display terminal 1
• through body ground M35, M45 and M85.
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 pressed 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 BOSE speaker amp. terminals 23, 24, 25, 26, 27, 28, 29, and 30.
Audio signals are amplified by the BOSE speaker amp.
The amplified audio signals are supplied
• through BOSE speaker amp. terminals 2, 3, 4, 9,10,11,12, 13, 14, 15, 16, 18, 19 and 20
• to terminals 1 and 2 of front door speaker LH and RH
• to terminals 1 and 2 of rear door speaker LH and RH
• to terminals 1 and 2 of tweeter LH and RH
• to terminals 1 and 2 of instrument speaker LH, RH, and CENTER, and
• to terminals 7 and 8 of woofer.
When one of audio steering wheel switch is pressed to

ON (With telephone system), mode ON (Without

telephone system), seek up, or volume up, resistance in steering switch circuit changes depending on which
button is pressed.
When one of audio steering wheel switch is pressed to mode ON (With telephone system), power ON (Without
telephone system), seek down, or volume down, resistance in audio steering wheel switch circuit changes
depending on which button is pressed.

SPEED SENSITIVE VOLUME SYSTEM

Volume level of this system gone up and down automatically in proportion to the vehicle speed. And the con-
trol level can be selected by the customer.

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Infiniti FX35 / FX45. Manual — part 137

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