2008 INFINITI FX35 window

TROUBLE DIAGNOSISATC-77
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
PERFORMANCE CHART
Test Condition
Testing must be performed as follows:
*1 ATC-125, "Removal and Installation
of Compressor Clutch"
*2AT C - 6 4 , "Blower Motor Circuit"*3 EM-14, "Checking Drive Belts"
(VQ35DE) or EM-170, "
Checking
Drive Belts" (VK45DE)
SJIA1642E
Vehicle condition Indoors or in the shade (in a well-ventilated place)
Doors Closed
Door windows Open
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ATC-138
< SERVICE INFORMATION >
REFRIGERANT LINES
 O-rings are different from low-pressure pipe 1 (high-pressure pipe 2) and low-pressure pipe 2 (high-
pressure pipe 3).
 Mark the mounting position of intake sensor bracket prior to removal so that the reinstalled sensor
can be located in the same position.
 When recharging refrigerant, check for leaks.
Removal and Installation of Expansion ValveINFOID:0000000001328230
REMOVAL
1. Remove evaporator. Refer to ATC-137, "Removal and Installation of Evaporator".
2. Remove mounting bolts, and then remove expansion valve. CAUTION:
Cap or wrap the joint of evaporator with suitable material
such as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
 Replace O-rings of evaporator with new ones, and then apply compressor oil to it when installing it.
 O-rings are different from low-pressure pipe 1 (h igh-pressure pipe 2) and low-pressure pipe 2 (high-
pressure pipe 3).
 When recharging refrigerant, check for leaks.
Checking of Refrigerant LeaksINFOID:0000000001328231
Perform a visual inspection of all refrigeration parts, fittings, hoses and components for signs of A/C lubricant
leakage, damage and corrosion. A/C lubricant leakage ma y indicate an area of refrigerant leakage. Allow
extra inspection time in these areas when using either an electrical leak detector or fluorescent dye leak
detector (SST: J-42220).
If dye is observed, c onfirm the leak with an electrical leak detector. It is possible a prior leak was repaired and
not properly cleaned.
When searching for leaks, do not stop when one leak is found but continue to check for additional leaks at all
system components and connections.
When searching for refrigerant leaks using an electric al leak detector, move the probe along the suspected
leak area at 1 to 2 inches per second and no further than 1/4 inch from the component.
CAUTION:
Moving the electrical leak detector probe slower and closer to the suspected leak area will improve the
chances of finding a leak.
Checking System for Leaks Using the Fluore scent Leak DetectorINFOID:0000000001328232
1. Check A/C system for leaks using the UV lamp and safety goggles (SST: J-42220) in a low sunlight area
(area without windows preferable). Illuminate all co mponents, fittings and lines. The dye will appear as a
bright green/yellow area at the point of leakage. Fluorescent dye observed at the evaporator drain open-
ing indicates an evaporator core assembly (tubes, core or expansion valve) leak.
2. If the suspected area is difficult to see, use an adjustable mirror or wipe the area with a clean shop rag or
cloth, with the UV lamp for dye residue.
3. After the leak is repaired, remove any residual dye using dye cleaner (SST: J-43872) to prevent future
misdiagnosis. Low-pressure pipe 1 bracket mounting bolt
: 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA1864E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

AV-1
ELECTRICAL
C
DE
F
G H
I
J
L
M
SECTION AV
A
B
AV
N
O P
CONTENTS
AUDIO VISUAL, NAVIGATION & TELEPHONE SYS- TEM
SERVICE INFORMATION ............................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
PREPARATION ...................................................4
Commercial Service Tool .................................... ......4
AUDIO .................................................................5
System Description ............................................. ......5
Component Parts Location ........................................6
Schematic - AUDIO - / with Navigation System ........7
Wiring Diagram - AUDIO - / with Navigation Sys-
tem ............................................................................
8
Schematic - AUDIO - without Navigation System ....18
Wiring Diagram - AUDIO - / without Navigation
System ....................................................................
19
Terminal and Reference Value for Audio Unit .........28
Terminal and Reference Value for BOSE Speaker
Amp .........................................................................
30
Terminal and Reference Value for A/C and AV
Switch ......................................................................
32
Terminal and Reference Value for Woofer ..............33
Terminal and Reference Value for Satellite Radio
Tuner ................................................................... ....
34
A/C and AV Switch Self-Diagnosis Function ...........34
Trouble Diagnosis ...................................................35
Power Supply Circuit Inspection .............................36
Audio Steering Wheel Switch Inspection ................37
A/C and AV Switch Inspection ................................39
BOSE Speaker Amp. Inspection .............................39
Vehicle Speed Signal Inspection .............................40
Locking CD Auto-Changer Mechanism ...................41
Removal and Installation of Audio Unit ...................41
Disassembly and Assembly of Audio Unit ...............42
Removal and Installation for A/C and AV Switch ....42
Removal and Installation for Front Door Speaker ....43
Removal and Installation for Rear Door Speaker ....43
Removal and Installation for Instrument Speaker ....43
Removal and Installation for Tweeter .................. ....44
Removal and Installation for Woofer (BOSE Sys-
tem) .........................................................................
44
Removal and Installation for BOSE Speaker Amp ....44
Removal and Installation of Satellite Radio Tuner ....45
Removal and Installation of Satellite Radio Anten-
na ......................................................................... ....
45
ANTENNA .........................................................46
System Description ..................................................46
Wiring Diagram - M/ANT - .......................................47
Terminal and Reference Value for Audio Unit .........48
Antenna Amp. Inspection ........................................48
Location of Antenna .................................................49
Window Antenna Repair ..........................................49
Removal and Installation of Roof Antenna ..............51
Removal and Installation of Satellite Radio Anten-
na ......................................................................... ....
51
INTEGRATED DISPLAY SYSTEM ...................52
System Description ..................................................52
Component Description ...........................................52
CAN Communication Unit ........................................53
Component Parts Location ......................................53
Schematic - INF/D - .................................................54
Wiring Diagram - INF/D - .........................................55
Schematic - COMM - ...............................................61
Wiring Diagram - COMM - .......................................62
Terminal and Reference Value for Display Control
Unit ...................................................................... ....
67
Terminal and Reference Value for Display ..............69
Terminal and Reference Value for A/C and AV
Switch ......................................................................
71
Special Note for Trouble Diagnosis .........................72
On Board Self-Diagnosis Function ..........................72
Self-Diagnosis Mode (DCU) ....................................73
Confirmation/Adjustment Mode ...............................75
CAN Diagnostic Support Monitor .............................77
A/C and AV Switch Self-Diagnosis Function ...........78
CAN Communication Check ....................................79
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

AUDIOAV-35
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
AV
N
O P
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 buzze r 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.
Trouble DiagnosisINFOID:0000000001328684
 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 malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and oper-
ation 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-79, "
Unable to Operate System with A/C and
AV Switch" (Without navigation system), or AV-127, "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.
SKIB8660E
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
Tweeter
 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.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

AUDIOAV-41
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
AV
N
O P
3. Check the signal between audio unit harness connector M60 terminal 22 and ground with CONSULT-III or oscilloscope.
OK or NG
OK >> INSPECTION END (System is OK.)
NG >> Replace unified meter and A/C amp.
Locking CD Auto-Changer MechanismINFOID:0000000001328690
CAUTION:
 Prior to removing a malfunctioning CD auto-changer unit that will be shipped for repair, the changer mechanism MUST BE LOCKED to prevent the mech anism from being damaged during shipping.
 If a CD is jammed or unable to be removed from th e unit, do NOT lock the changer mechanism. If the
unit is to be shipped for repair, carefully package the unit to prevent vibration and shock.
DAMPER LOCK PROCEDURE
1. Eject and remove any CDs from the audio unit.
2. Turn ignition switch OFF. Wait until audio unit display is off and mechanism stops moving (mechanism
sound stops).
3. Press any one of the disc selection buttons once. When a display shows on the audio unit, press the
same disc selection button again within 5 seconds.
 The changer mechanism will lock itself within 10 seconds.
4. After mechanism stops moving (mechanism s ound stops), open the driver and passenger window, and
then disconnect negative battery cable.
NOTE:
After installing a new or remanufactured audio unit, switching the audio unit ON will automatically unlock the
mechanism. A special unlocking procedure is not required.
Removal and Installation of Audio UnitINFOID:0000000001328691
REMOVAL
1. Perform damper lock operation. Refer to AV-41, "Locking CD Auto-Changer Mechanism".
2. Remove cluster lid C. Refer to IP-10
.
3. Remove screws (6) with power tool, and remove audio unit with display and unified meter and A/C amp. from instrument panel.
4. Remove screws and remove audio unit.
INSTALLATION
Te r m i n a l Condition Reference
signal
(+) (–)
22 Ground When vehicle speed is ap-
prox. 40 km/h (25 MPH)
SKIA6809E
ELF1080D
SKIA5800E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ANTENNAAV-49
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
AV
N
O P
Location of AntennaINFOID:0000000001328706
RADIO ANTENNA AND GPS ANTENNA
SATELLITE RADIO ANTENNA
Window Antenna RepairINFOID:0000000001328707
CHECK ELEMENT
PKIB5079E
SKIB8640E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

INTEGRATED DISPLAY SYSTEMAV-79
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
AV
N
O P
Rear window defogger switch operation is not checked (No beep sound even under normal status).
EXITING THE SELF-DIAGNOSIS MODE
 Turn ignition switch OFF.
CAN Communication CheckINFOID:0000000001328727
1.CHECK MONITOR DESCRIPTION
1. Start self-diagnosis of DCU. Refer to AV-73, "
Self-Diagnosis Mode (DCU)".
2. Select “CAN DIAG SUPPORT MONITOR”. Refer to AV-77,
"CAN Diagnostic Support Monitor".
3. Record each item display description (OK/NG/UNK WN) displayed on the following CAN DIAG SUPPORT
MONITOR Check Sheet.
CAN DIAG SUPPORT MONITOR Check Sheet
>> After filling in CAN DIAG SUPPORT MONITOR Check Sheet, Go to LAN-43, "CAN System Spec-
ification Chart".
Unable to Operate System with A/C and AV SwitchINFOID:0000000001328728
Symptom: Unable to operate A/C system and audio system with A/C and AV switch. (Unable to start self-diag-
nosis.)
1.CHECK CONDITION
1. Turn ignition switch ON.
2. Check if an image is displayed on the screen.
Is an image displayed on the screen?
YES >> GO TO 2.
NO >> Repair malfunctioning part. Refer to AV-80, "
All Images Are Not Displayed".
2.SELF-DIAGNOSIS OF A/C AND AV SWITCH
Start self-diagnosis of A/C and AV switch, and check the self-diagnosis result. Refer to AV-78, "
A/C and AV
Switch Self-Diagnosis Function".
OK or NG
Item content
Error counter
(Reference value)
Normal conditio n Error (Example)
CAN_COMM OK NG 0 - 50
CAN_CIRC_1 OK UNKWN 0 - 50
CAN_CIRC_2 OK UNKWN 0 - 50
CAN_CIRC_3 OK UNKWN 0 - 50
CAN_CIRC_4 OK UNKWN 0 - 50
CAN_CIRC_5 OK UNKWN 0 - 50
CAN_CIRC_6 OK UNKWN 0 - 50
CAN_CIRC_7 OK UNKWN 0 - 50
CAN_CIRC_8 OK UNKWN 0 - 50
CAN_CIRC_9 UNKWN UNKWN 0 - 50
PKIB6080E
Diagnosis item Screen display Diagnosis item Screen display CAN_COMM OK NG CAN_CIRC_5 OK UNKWN
CAN_CIRC_1 OK UNKWN CAN_CIRC_6 OK UNKWN
CAN_CIRC_2 OK UNKWN CAN_CIRC_7 OK UNKWN
CAN_CIRC_3 OK UNKWN CAN_CIRC_8 OK UNKWN
CAN_CIRC_4 OK UNKWN CAN_CIRC_9 OK UNKWN
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

AV-126
< SERVICE INFORMATION >
NAVIGATION SYSTEM
NOTE:
Counter shows the status of CAN communication.
A/C and AV Switch Self-Diagnosis FunctionINFOID:0000000001328757
Performing self-diagnosis makes it possible to check operation of A/C and AV switch indicator (LED) and other
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 buzze r 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 wheel 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.
CAN Communication CheckINFOID:0000000001328758
1.CHECK MONITOR DESCRIPTION
1. Start self-diagnosis of DCU. Refer to AV-114, "
Self-Diagnosis Mode (DCU)".
2. Select “CAN DIAG SUPPORT MONITOR”. Refer to AV-125,
"CAN Diagnostic Support Monitor".
CAN_CIRC_8 OK/UNKWN 0 - 50
CAN_CIRC_9 OK/UNKWN 0 - 50
SKIB8660E
Item content
Error counter
(Reference value)
Normal conditio n Error (Example)
CAN_COMM OK NG 0 - 50
CAN_CIRC_1 OK UNKWN 0 - 50
CAN_CIRC_2 OK UNKWN 0 - 50
CAN_CIRC_3 OK UNKWN 0 - 50
CAN_CIRC_4 OK UNKWN 0 - 50
CAN_CIRC_5 OK UNKWN 0 - 50
CAN_CIRC_6 OK UNKWN 0 - 50
CAN_CIRC_7 OK UNKWN 0 - 50
CAN_CIRC_8 OK UNKWN 0 - 50
CAN_CIRC_9 UNKWN UNKWN 0 - 50
PKIB6080E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C