wheel INFINITI FX35 2005 User Guide

ATC-1
AUTOMATIC AIR CONDITIONER
J AIR CONDITIONER
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AUTOMATIC AIR CONDITIONER
PRECAUTIONS .......................................................... 5
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 5
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect ..................................... ..... 5
OPERATION PROCEDURE ............................ ..... 5
Precautions for Procedures without Cowl Top Cover ..... 6
Precautions for Working with HFC-134a (R-134a) ..... 6
CONTAMINATED REFRIGERANT .................. ..... 7
General Refrigerant Precautions ......................... ..... 7
Precautions for Refrigerant Connection .............. ..... 8
ABOUT ONE-TOUCH JOINT ........................... ..... 8
FEATURES OF NEW TYPE REFRIGERANT
CONNECTION ................................................. ... 10
O-RING AND REFRIGERANT CONNECTION .... 11
Precautions for Servicing Compressor ................ ... 13
Precautions for Service Equipment ..................... ... 13
RECOVERY/RECYCLING EQUIPMENT ......... ... 13
ELECTRONIC LEAK DETECTOR ................... ... 13
VACUUM PUMP .............................................. ... 14
MANIFOLD GAUGE SET ................................. ... 14
SERVICE HOSES ............................................ ... 14
SERVICE COUPLERS ..................................... ... 15
REFRIGERANT WEIGHT SCALE ................... ... 15
CHARGING CYLINDER ................................... ... 15
Precautions for Leak Detection Dye .................... ... 16
IDENTIFICATION ............................................. ... 16
IDENTIFICATION LABEL FOR VEHICLE ........ ... 16
PREPARATION ...................................................... ... 17
Special Service Tools .......................................... ... 17
HFC-134a (R-134a) Service Tools and Equipment ... 18
Commercial Service Tools ................................... ... 20
REFRIGERATION SYSTEM .................................. ... 21
Refrigerant Cycle ................................................ ... 21
REFRIGERANT FLOW .................................... ... 21
FREEZE PROTECTION .................................. ... 21
Refrigerant System Protection ............................ ... 21
REFRIGERANT PRESSURE SENSOR .......... ... 21
PRESSURE RELIEF VALVE ............................ ... 21 V-6 Variable Displacement Compressor ..............
... 22
GENERAL INFORMATION .............................. ... 22
DESCRIPTION ................................................. ... 23
Component Layout .............................................. ... 26
LUBRICANT ........................................................... ... 27
Maintenance of Lubricant Quantity in Compressor ... 27
LUBRICANT ..................................................... ... 27
LUBRICANT RETURN OPERATION ............... ... 27
LUBRICANT ADJUSTING PROCEDURE FOR
COMPONENTS REPLACEMENT EXCEPT
COMPRESSOR ............................................... ... 28
LUBRICANT ADJUSTING PROCEDURE FOR
COMPRESSOR REPLACEMENT .................... ... 29
AIR CONDITIONER CONTROL ............................ ... 30
Description of Air Conditioner LAN Control System ... 30
System Construction ........................................... ... 30
OPERATION ..................................................... ... 30
TRANSMISSION DATA AND TRANSMISSION
ORDER ............................................................ ... 31
AIR MIX DOOR CONTROL (AUTOMATIC TEM-
PERATURE CONTROL) .................................. ... 32
FAN SPEED CONTROL ................................... ... 32
INTAKE DOOR CONTROL .............................. ... 32
OUTLET DOOR CONTROL ............................. ... 32
MAGNET CLUTCH CONTROL ........................ ... 33
SELF-DIAGNOSIS SYSTEM ........................... ... 33
Description of Control System ............................. ... 34
Control Operation ................................................ ... 34
DISPLAY SCREEN ........................................... ... 34
AUTO SWITCH ................................................ ... 35
TEMPERATURE SWITCH (POTENTIO TEM-
PERATURE CONTROL) (DRIVER SIDE) ........ ... 35
TEMPERATURE SWITCH (POTENTIO TEM-
PERATURE CONTROL) (PASSENGER SIDE) ... 35
RECIRCULATION (REC) SWITCH .................. ... 35
FRESH (FRE) SWITCH ................................... ... 35
DEFROSTER (DEF) SWITCH .......................... ... 35
REAR WINDOW DEFOGGER SWITCH .......... ... 35
OFF SWITCH ................................................... ... 35
A/C SWITCH .................................................... ... 35

PRECAUTIONS ATC-5
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AJS001XF
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 SRS and SB section of this Service Man-
ual.
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 per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

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
harness connectors.
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectAJS001XG
NOTE:

This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).

Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″ LOCK ″ position.

Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.

AV-1
AUDIO VISUAL, NAVIGATION & TELEPHONE SYS- TEM
K ELECTRICAL
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AUDIO VISUAL, NAVIGATION & TELEPHONE SYSTEM
PRECAUTIONS .......................................................... 5
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 5
PREPARATION ...................................................... ..... 6
Commercial Service Tools ................................... ..... 6
AUDIO .................................................................... ..... 7
Component Parts and Harness Connector Location ..... 7
System Description ............................................. ..... 8
BASE SYSTEM ................................................ ..... 8
BOSE SYSTEM ............................................... ..... 8
SPEED SENSITIVE VOLUME SYSTEM ......... ..... 9
Schematic - Base System - ................................. ... 10
Wiring Diagram - AUDIO - / Base System .......... .... 11
Schematic - BOSE System - With Navigation Sys-
tem ...................................................................... ... 16
Wiring Diagram – AUDIO – / BOSE System With
Navigation System .............................................. ... 17
Schematic - BOSE System - Without Navigation
System ................................................................ ... 25
Wiring Diagram – AUDIO – / BOSE System Without
Navigation System .............................................. ... 26
Terminals and Reference Value for Audio Unit .... ... 33
Terminals and Reference Value for BOSE Speaker
Amp. .................................................................... ... 34
Terminals and Reference Value for A/C and AV
Switch .................................................................. ... 36
Terminals and Reference Value for Woofer ......... ... 37
A/C and AV Switch Self-Diagnosis Function ....... ... 37
STARTING THE SELF-DIAGNOSIS MODE .... ... 37
EXITING THE SELF-DIAGNOSIS MODE ........ ... 37
DIAGNOSIS FUNCTION .................................. ... 37
Trouble Diagnosis ............................................... ... 38
MALFUNCTION WITH RADIO, TAPE AND CD ... 38
FOR RADIO ONLY ........................................... ... 39
FOR CASSETTE PLAYER ONLY .................... ... 39
FOR CD ONLY ................................................. ... 39
Noise Inspection .................................................. ... 40
TYPE OF NOISE AND POSSIBLE CAUSE ..... ... 40
Power Supply Circuit Inspection ......................... ... 41 Audio Steering Wheel Switch Inspection .............
... 42
A/C and AV Switch Inspection ............................. ... 44
BOSE Speaker Amp. Inspection ......................... ... 44
Vehicle Speed Signal Inspection ......................... ... 45
Locking CD Auto-Changer Mechanism ............... ... 46
DAMPER LOCK PROCEDURE ....................... ... 46
Removal and Installation of Audio Unit ................ ... 47
REMOVAL ........................................................ ... 47
INSTALLATION ................................................ ... 47
Disassembly and Assembly for Audio Unit .......... ... 47
DISASSEMBLY ................................................ ... 47
ASSEMBLY ...................................................... ... 47
Removal and Installation for A/C and AV Switch . ... 48
REMOVAL ........................................................ ... 48
INSTALLATION ................................................ ... 48
Removal and Installation for Front Door Speaker ... 48
REMOVAL ........................................................ ... 48
INSTALLATION ................................................ ... 48
Removal and Installation for Rear Door Speaker ... 49 REMOVAL ........................................................ ... 49
INSTALLATION ................................................ ... 49
Removal and Installation for Instrument Speaker ... 49 REMOVAL ........................................................ ... 49
INSTALLATION ................................................ ... 49
Removal and Installation for Tweeter .................. ... 49
REMOVAL ........................................................ ... 49
INSTALLATION ................................................ ... 49
Removal and Installation for Woofer (BOSE Sys-
tem) ..................................................................... ... 50
REMOVAL ........................................................ ... 50
INSTALLATION ................................................ ... 50
Removal and Installation for BOSE Speaker Amp. ... 50
REMOVAL ........................................................ ... 50
INSTALLATION ................................................ ... 50
AUDIO ANTENNA ................................................. ... 51
System Description .............................................. ... 51
Wiring Diagram — M/ANT — .............................. ... 52
Terminals and Reference Value for Audio Unit .... ... 53
Antenna Amp. Inspection .................................... ... 53
Location of Antenna ............................................. ... 54

AV-2Revision: 2005 July 2005 FX
Window Antenna Repair ......................................
... 54
CHECK ELEMENT ........................................... ... 54
Removal and Installation of Roof Antenna .......... ... 56
REMOVAL ........................................................ ... 56
INSTALLATION ................................................. ... 56
INTEGRATED DISPLAY SYSTEM ......................... ... 57
System Description .............................................. ... 57
A/C AND AV SWITCH SYSTEM ....................... ... 57
PRECAUTION OF LCD MONITOR .................. ... 57
POWER SUPPLY AND GROUND .................... ... 57
DRIVE COMPUTER ......................................... ... 58
E/M SWITCH .................................................... ... 59
SETTING SCREEN .......................................... ... 60
WARNING INDICATIONS ................................ ... 61
AV COMMUNICATION LINE ............................ ... 61
CAN Communication System Description ........... ... 61
CAN Communication Unit .................................... ... 61
Component Parts and Harness Connector Location ... 61
Schematic ............................................................ ... 62
Wiring Diagram — INF/D — ................................ ... 63
Schematic ............................................................ ... 68
Wiring Diagram — COMM — .............................. ... 69
Terminals and Reference Value for Display Unit . ... 72
Terminals and Reference Value for A/C and AV
Switch .................................................................. ... 73
On Board Self-Diagnosis Function ...................... ... 74
DESCRIPTION ................................................. ... 74
DIAGNOSIS ITEM ............................................ ... 74
Self-Diagnosis Mode ........................................... ... 74
OPERATION PROCEDURES .......................... ... 74
NETWORK CHECK .......................................... ... 75
PARTS CHECK ................................................ ... 75
HVAC DETAIL SCREEN ................................... ... 76
VERSION CHECK ............................................ ... 76
CAN DIAG MNTR (CAN DIAG MONITOR) ...... ... 76
A/C and AV Switch Self-Diagnosis Function ........ ... 77
STARTING THE SELF-DIAGNOSIS MODE ..... ... 77
EXITING THE SELF-DIAGNOSIS MODE ........ ... 77
DIAGNOSIS FUNCTION .................................. ... 77
Trouble Diagnosis Chart by Symptom ................. ... 78
Power Supply and Ground Circuit Check for Display
Unit ...................................................................... ... 79
Power Supply and Ground Circuit Check for A/C and
AV Switch ............................................................. ... 80
Vehicle Speed Signal Inspection ......................... ... 80
Illumination Signal Inspection .............................. ... 81
Ignition Signal Inspection ..................................... ... 82
Audio Communication Line Inspection ................ ... 82
AV Communication Line Inspection ..................... ... 84
CAN Communication Line Inspection .................. ... 85
Audio Steering Wheel Switch Inspection ............. ... 86
Removal and Installation of Display ..................... ... 86
REMOVAL ........................................................ ... 86
INSTALLATION ................................................. ... 86
Removal and Installation of A/C and AV Switch .. ... 86
NAVIGATION SYSTEM .......................................... ... 87
System Description .............................................. ... 87
TRAVEL DISTANCE ......................................... ... 87
TRAVEL DIRECTION ....................................... ... 87 MAP-MATCHING ..............................................
... 87
GPS (GLOBAL POSITIONING SYSTEM) ........ ... 88
COMPONENT DESCRIPTION ......................... ... 89
BIRDVIEW™ ..................................................... ... 89
MAP DISPLAY .................................................. ... 90
FUNCTION OF CENTER SWITCH .................. ... 91
“VIEW” MODE ................................................... ... 97
“HEADING” MODE ........................................... ... 98
“NEARBY DISPLAY ICONS” MODE ................. ... 98
“SAVE CURRENT LOCATION” MODE ............. ... 98
“ADJUST CURRENT LOCATION” MODE ........ ... 98
“AUTO RE-ROUTE” MODE .............................. ... 99
“AVOID AREA SETTING” MODE ..................... ... 99
“CLEAR MEMORY” MODE ............................... ... 99
“EDIT ADDRESS BOOK” MODE ...................... .100
“GPS INFORMATION” MODE .......................... .100
“QUICK STOP CUSTOMER SETTING” MODE .100
“SET AVERAGE SPEED” MODE ..................... .100
“TRACKING” MODE ......................................... .101
GUIDANCE VOLUME ....................................... .101
DISPLAY WITH PUSHED “TRIP” BUTTON ...... .101
TRIP 1 OR TRIP 2 ............................................ .102
FUEL ECONOMY ............................................. .102
MAINTENANCE ................................................ .102
ENGINE OIL OR TIRE ROTATION ................... .102
TIRE PRESSURE ............................................. .103
WARNING INDICATIONS ................................. .103
CAN Communication System Description ........... .104
CAN Communication Unit .................................... .104
Component Parts Location and Harness Connector
Location ............................................................... .104
Schematic—NAVI— ............................................. .105
Wiring Diagram —NAVI— .................................... .106
Schematic — COMM — ....................................... .113
Wiring Diagram — COMM — ............................... .114
Terminals and Reference Value for NAVI Control
Unit ....................................................................... .119
Terminals and Reference Value for Display Control
Unit ....................................................................... .121
Terminals and Reference Value for Display ......... .125
Terminals and Reference Value for A/C and AV
Switch .................................................................. .127
On Board Self-Diagnosis Function ....................... .128
DESCRIPTION ................................................. .128
DIAGNOSIS ITEM ............................................ .128
Self-Diagnosis Mode (DCU) ................................. .129
OPERATION PROCEDURE ............................. .129
SELF–DIAGNOSIS RESULT ............................ .130
Self-Diagnosis Mode (NAVI) ................................ .131
OPERATION PROCEDURE ............................. .131
SELF–DIAGNOSIS RESULT ............................ .132
Confirmation/Adjustment Mode ............................ .133
OPERATION PROCEDURE ............................. .133
DISPLAY DIAGNOSIS ...................................... .134
VEHICLE SIGNALS .......................................... .134
AUTO CLIMATE CONTROL ............................. .135
NAVIGATION .................................................... .135
DISPLAY DIAGNOSIS ...................................... .135
VEHICLE SIGNALS .......................................... .136

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

AUDIO AV-9
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to display control unit terminal 10 (with navigation system) or display unit terminal 2 (without navigation
system) 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 BOSE speaker amp. terminal 17

to woofer terminal 2 and

to option connector–2 for satellite radio receiver terminal 10

through body ground B203 and B210,

to A/C and AV switch terminal 5

to display control unit terminal 3 and 13 (with navigation system)

to display terminal 1 (with navigation system) and

to display unit terminal 6 and 15 (without navigation system)

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 pushed to audio switch, it send audio signal to audio unit.
Then audio signals 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 pushed to volume up, seek up, or mode ON, resistance in audio
steering wheel 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.
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.

AV-36
AUDIO
Revision: 2005 July 2005 FX
Terminals and Reference Value for A/C and AV SwitchAKS00A2B
Terminal No.
(Wire color) Item Signal
input/
output Condition
Voltage Example of
symptom
+– Ignition
switch Operation
1 (W/L) Ground Battery power
supply Input OFF — Battery voltage System does not
work properly.
2 (LG/R) Ground ACC power
supply Input ACC — Battery voltage System does not
work properly.
3 (R/L) Ground Illumination
signal Input OFF Lighting switch is
ON (position 1). Approx. 12 V
A/C and AV
switch illumina-
tion does not
come on when
lighting switch is
ON (position 1).
Turn lighting switch
OFF. Approx. 0 V
4 (R/Y) Ground Illumination
control signal Output ON Illumination control
switch is operated
by lighting switch in 1st or 2nd position. Changes between approx.0 V
and approx.12 V Audio unit illumi-
nation can not be
controlled.
5 (B) Ground Ground — ON — Approx. 0 V —
6 (B/R) Ground Communica-
tion signal (+) Input/
Output ON — System does not
work properly.
7 — Shield — — — — —
8 (W/R) Ground Communica-
tion signal (–) Input/
Output ON —
System does not
work properly.
12 (R/G) Ground Steering SW
A Input ON Press MODE switch. Approx. 0 V
Steering wheel
audio controls do
not function
Press SEEK UP
switch. Approx. 1.7 V
Press VOL UP
switch. Approx. 3.3 V
Except for above Approx. 5 V
13 (G/W) Ground Steering SW
B Input ON Press POWER
switch. Approx. 0 V
Steering wheel
audio controls do
not function
Press SEEK DOWN
switch. Approx. 1.7 V
Press VOL DOWN
switch. Approx. 3.3 V
Except for above Approx. 5 V
14 (B/Y) — Steering SW
ground —— — — Steering wheel
audio controls do
not function.
SKIA0175E
SKIA0176E

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Terminals and Reference Value for WooferAKS00AM2
A/C and AV Switch Self-Diagnosis FunctionAKS007OE
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 “MUTE/ II ” and
“MAP ”simultaneously for 3 seconds.
Then the self-diagnosis operates.
EXITING THE SELF-DIAGNOSIS MODE

Turn ignition switch OFF. Then the self-diagnosis ends.
DIAGNOSIS FUNCTION

It can illuminate all the indicators (LED) in the A/C and AV switch.

It can check for continuity of the switches by sounding the buzzer when the A/C and AV switch is pressed.

It can check for continuity of harness between A/C and AV switch and audio steering wheel switch.
Terminal No. (Wire color) Item Signal
input/
output Condition
Voltag e Example of
symptom
+– Ignition
switch Operation
1 (G/R) Ground Battery power
Supply Input OFF — Battery voltage No sound from
woofer.
2 (B) Ground Ground — ON — Approx. 0 V No sound from
woofer.
5 (P) Ground Amp ON signal Input ACC — Approx. 12 V No sound from
woofer.
7 (W) 8 (B) Woofer sound
signal Input ACC Receive audio sig-
nal No sound from
woofer.
SKIA0177E
PKIB4130E

AV-38
AUDIO
Revision: 2005 July 2005 FX
Trouble DiagnosisAKS005TB
The majority of the audio malfunctions are the result of outside causes (bad CD/cassette, electromagnetic
interference, etc.). Check the inspection items below to diagnose the malfunction.
MALFUNCTION WITH RADIO, TAPE AND CD
Symptom Possible cause
Inoperative

Audio power supply circuit. Refer to AV-41, "Power Supply Circuit Inspection" .

Audio communication line check (Without Navigation System). Refer to AV-82,
"Audio Communication Line Inspection" .

Audio communication line check (With Navigation System). Refer to AV-149, "AV
Communication Line Check (Between Display Control Unit and NAVI Control Unit)"
.

A/C and AV switch check. Refer to AV- 4 4 , "A/C and AV Switch Inspection" .
If above systems are OK, replace audio unit.
Audio steering wheel switch does not operate.

Audio steering wheel switch check. Refer to AV-42, "Audio Steering Wheel Switch
Inspection" .
If above systems are OK, replace audio unit.
Audio display is not shown.

Audio communication line check (Without Navigation System). Refer to AV-82,
"Audio Communication Line Inspection" .

Audio communication line check (With Navigation System). Refer to AV-150,
"Audio Communication Line Check (Between Display Control Unit and Audio Unit)"
.
If above systems are OK, replace audio unit.
All speaker do not sound.

Replace audio unit (Base system). Refer to AV-47, "Removal and Installation of
Audio Unit" .

BOSE speaker amp. power supply. Refer to AV- 4 1 , "Power Supply Circuit Inspec-
tion" .

BOSE speaker amp. circuit. Refer to AV- 4 4 , "BOSE Speaker Amp. Inspection" .
If above systems are OK, replace BOSE speaker amp.
Speed sensitive volume system dose not work.

Vehicle speed signal check. Refer to AV- 4 5 , "Vehicle Speed Signal Inspection" .
If above system is OK, replace audio unit.
Poor sound

Replace audio unit (Base system). Refer to AV-47, "Removal and Installation of
Audio Unit" .

BOSE speaker amp (BOSE system). check. Refer to AV- 4 4 , "BOSE Speaker Amp.
Inspection" .
If above systems are OK, replace BOSE speaker amp.
Noisy

Noise check. Refer to AV- 4 0 , "Noise Inspection" .
If above systems are OK, replace audio unit.

AV-42
AUDIO
Revision: 2005 July 2005 FX
3. CHECK GROUND CIRCUIT
1. Disconnect BOSE speaker amp. connector and woofer connector.
2. Check continuity between BOSE speaker amp. harness connec- tor B212 terminal 17 (B) and ground.
3. Check continuity between woofer harness connector B223 ter- minal 2 (B) and ground.
OK or NG
OK >> INSPECTION END (System is OK.)
NG >> Repair harness or connector.
Audio Steering Wheel Switch InspectionAKS00AUL
1. CHECK A/C AND AV SWITCH SELF-DIAGNOSIS FUNCTION
1. Start A/C and AV switch self-diagnosis function. Refer to AV- 7 7 , "
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. 17 (B) – Ground : Continuity should exist.
SKIA4312E
2 (B) – Ground : Continuity should exist.
SKIA6786E