audio INFINITI FX35 2005 Repair Manual

INTEGRATED DISPLAY SYSTEM AV-75
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Revision: 2005 July 2005 FX
6. Self-diagnosis screen is displayed.

Using the joystick, select each item, and perform diagnosis.
CAUTION:
If self-diagnosis cannot activated, refer to AV- 7 8 , "
Trouble
Diagnosis Chart by Symptom" .
NETWORK CHECK
Selecting NETWORK CHECK on self-diagnosis screen, display self-
diagnostic results.
PARTS CHECK

Selecting PARTS CHECK on self-diagnosis screen, display
selection screen.

Select DISPLAY, indicate DISPLAY DETAIL screen. Display
diagnosis and setting can be performed.

Select HVAC, Indicate HVAC DETAIL screen. Auto air condi-
tioner system self-diagnosis can be performed.
SKIA5922E
SKIA5923E
Diagnosis
item Contents DTC return condition Reference at error
HVAC OK/NG Communication error between unified meter and A/C amp. and display unit. AV- 8 5 , "
CAN Communication
Line Inspection"
SWITCH OK/NG Communication error between A/C and AV switch and display unit. AV- 8 4 , "AV Communication
Line Inspection"
AUDIO OK/NG Communication error between audio and display unit.AV- 8 2 , "Audio Communication
Line Inspection"
SKIA5924E

AV-76
INTEGRATED DISPLAY SYSTEM
Revision: 2005 July 2005 FX
Display Detail Screen
NOTE:
Except an audio screen.
HVAC DETAIL SCREEN
Press the joystick, start auto air conditioner system self-diagnosis.
Refer to AT C - 5 3 , "
Self-diagnosis Function" .
VERSION CHECK
Check ID and version of display, A/C and AV switch, audio, IVCS, changer, and Satellite Radio.
CAN DIAG MNTR (CAN DIAG MONITOR)
Display CAN communication status.
Items Description
FULL BLINK All display unit segments turn ON.
BLANK–ADJ Adjust the display time-out for 5 to 15 seconds. (Default is
10 seconds.)
NOTE
WARNING Select warning indication ON/OFF. (Default is ON.)
SKIA5925E
SKIA5926E
Items shown Contents
CANCOMM OK/NG CAN1 OK/UNKWN
CAN2 OK/UNKWN
CAN3 OK/UNKWN
CAN4 OK/UNKWN
CAN5 OK/UNKWN
CAN6 OK/UNKWN
CAN7 OK/UNKWN
CAN8 OK/UNKWN
CAN9 OK/UNKWN
SKIA5927E

INTEGRATED DISPLAY SYSTEM AV-77
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A/C and AV Switch Self-Diagnosis FunctionAKS005UA
It can check ON/OFF operation of each switch in the A/C and AV switch and diagnose the input signals to the
steering switch (audio).
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
“PREV ”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 steering switch (audio).
SKIA4972E

AV-78
INTEGRATED DISPLAY SYSTEM
Revision: 2005 July 2005 FX
Trouble Diagnosis Chart by SymptomAKS005UB
Symptom Suspect Systems and reference
No screen is shown. Refer to
AV-79, "
Power Supply and Ground Circuit Check for Display Unit" .
If above is normal, replace display unit.
Screen does not switch to nighttime mode after the
lighting switch is turned 1st. Refer to
AV-81, "
Illumination Signal Inspection" .
TRIP and FUEL ECON screen do not appear. Refer to AV-82, "
Ignition Signal Inspection" .
Journey distance (DIST) is not added up. Refer to AV-80, "
Vehicle Speed Signal Inspection" .
Average vehicle speed (AVG) is not displayed.
Average fuel consumption (AVG) is not displayed.

Refer to AV-80, "Vehicle Speed Signal Inspection" .

Refer to AV-85, "CAN Communication Line Inspection" .
If above is normal, replace display unit.
Distance to empty (DTE) is not displayed.

Check if speedometer operates. If it does not operate, go to AV- 8 0 , "Vehicle
Speed Signal Inspection" .

Check if fuel gauge operates. If it does not operate, go to DI-22, "Fuel Level
Sensor Signal Inspection" .

Refer to AV-85, "CAN Communication Line Inspection" .
If above is normal, replace display unit.
Tire pressure is not displayed.

Check BCM (Body Control Module). Refer to BCS-3, "BCM (BODY CONTROL
MODULE)" .

Refer to AV-85, "CAN Communication Line Inspection" .
If above is normal, replace display unit.
Door warning screen does not appear.

Refer to AV-80, "Vehicle Speed Signal Inspection" .

Refer to AV-85, "CAN Communication Line Inspection" .
If above is normal, replace display unit.
A/C and AV switch and all switch operation are not
possible.
(Do not start self-diagnosis.)

Refer to AV-80, "Power Supply and Ground Circuit Check for A/C and AV
Switch" .

Refer to AV-77, "A/C and AV Switch Self-Diagnosis Function" .

Refer to AV-84, "AV Communication Line Inspection" .
If above is normal, replace display unit.
Audio operation is not possible.

Refer to AV-77, "A/C and AV Switch Self-Diagnosis Function" .

Refer to AV-82, "Audio Communication Line Inspection" .
Audio steering wheel switches do not function. Refer to
AV-86, "
Audio Steering Wheel Switch Inspection" .
If above is normal, replace AV and A/C switch.
Air conditioner operation is not possible.

Refer to AV-77, "A/C and AV Switch Self-Diagnosis Function" .

Refer to AV-85, "CAN Communication Line Inspection" .

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

INTEGRATED DISPLAY SYSTEM AV-83
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3. CHECK AUDIO COMMUNICATION SIGNAL(AUD–DSP)
1. Turn ignition switch OFF and connect audio unit connector.
2. Turn ignition switch ON.
3. Check voltage between audio unit harness connector M60 ter- minal 21 (B/Y) and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace audio unit.
4. CHECK AUDIO COMMUNICATION SIGNAL(DSP–AUD)
1. Turn ignition switch ON.
2. Check the signal between display unit harness connector M62 terminal 8 (LG) and ground with CONSULT-ll or oscilloscope.
OK or NG
OK >> GO TO 5.
NG >> Replace display unit.
5. CHECK AUDIO COMMUNICATION SIGNAL(AUD–DSP)
1. Turn ignition switch ON.
2. Check the signal between display unit harness connector M62 terminal 10 (B/Y) and ground with CONSULT-ll or oscilloscope.
OK or NG
OK >> INSPECTION END
NG >> Replace audio unit. Approx. 3.5 V or more
SKIA4996E
8 (LG) - Ground:
SKIA4995ESKIA4402E
10 (B/Y) - Ground:
SKIA4999ESKIA4403E

AV-86
INTEGRATED DISPLAY SYSTEM
Revision: 2005 July 2005 FX
Audio Steering Wheel Switch InspectionAKS005UK
Refer to AV- 4 2 , "Audio Steering Wheel Switch Inspection" .
Removal and Installation of DisplayAKS005UL
REMOVAL
1. Remove audio unit. Refer to AV- 4 7 , "Removal and Installation of
Audio Unit" .
2. Remove screws (4), and remove display.
INSTALLATION
Installation is the reverse order of removal.
Removal and Installation of A/C and AV SwitchAKS005UM
Refer to AV- 4 8 , "Removal and Installation for A/C and AV Switch" .
SKIA6167E

NAVIGATION SYSTEM AV-121
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Terminals and Reference Value for Display Control UnitAKS007IW
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 (W/G) Ground Power Sup-
ply (Inverter) Output ON — Approx. 9 V Screen is not
shown.
3 (B) Ground Ground — ON — Approx. 0 V —
4 (BR/W) Ground Power Sup-
ply (Signal) Output ON — Approx. 9 V
Screen is not
shown.
5 (P) Ground (Inverter)
Ground — ON — Approx. 0 V —
6 (OR) Ground Reverse
signal Input ON Selector lever in R
position Approx. 12 V
Impossible to
gain direction of
vehicle.
Selector lever not
in R position Approx. 0 V
7 (P/L) Ground (Signal)
Ground — ON — Approx. 0 V —
10 (LG/R) Ground ACC power
supply Input ACC — Battery voltage System does not
work properly.
12 (G/R) Ground Ignition signal Input ON — Battery voltage A/C operation is
not possible.
Vehicle informa-
tion setting is not
possible.
13 (B) Ground Sysco — ON — Approx. 0 V —
14 (R/L) Ground Illumination
signal Input OFF Lighting switch
position 1st or 2nd Approx. 12 V Audio unit illumi-
nation does not
come on when
lighting switch is
ON (position 1).
Lighting switch
position OFF Approx. 0 V
16 (R/G) Ground Vehicle speed
signal (8–
pulse) Input ON When vehicle
speed is approx.
40 km/h (25 MPH) Value of vehicle
information is
not accurately
displayed.
25 (L) — CAN H — — — — —
26 (R) — CAN L — — — — —
28 (B/R) Ground Communica-
tion signal (+) Input/
Output ON —
System does not
work properly.
29 — Shield ground — — — — —
PKIA1935E
SKIA0175E

AV-122
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
30 (W/R) Ground Communica-
tion signal (–) Input/
output ON — System does not
work properly.
32 (BR) Ground Communica-
tion signal (+) Input/
output ON — System does not
work properly.
33 — Shield ground — — — — —
34 (Y) Ground Communica-
tion signal (–) Input/
output ON — System does not
work properly.
36 (PU) Ground Display Com-
munication
signal
(DCU-DSP) Output ON
Press the “TRIP”
button. Though a screen
is displayed, it is
impossible to
adjust bright-
ness.
37 — Shield ground — — — — —
38 (LG) Ground Display Com-
munication
signal
(DSP-DCU) Input ON
Press the “TRIP”
button. Though a screen
is displayed, it is
impossible to
adjust bright-
ness.
39 — Shield ground — — — — —
40 (LG) Ground Audio
Communica-
tion signal Output ON
Operate audio
volume. Audio dose not
operate properly.
41 — Shield ground — — — — — Terminal No.
(Wire color) Item Signal
input/
output Condition
Voltag e Example of
symptom
+– Ignition
switch Operation
SKIA0176E
SKIA0175E
SKIA0176E
SKIA4364E
SKIA4363E
SKIA4403E

NAVIGATION SYSTEM AV-123
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Revision: 2005 July 2005 FX
42 (B/Y) Ground Audio
communica-
tion signal Input ON
Operate audio
volume. Audio dose not
operate properly.
43 (G/B) 41 RGB synchro-
nizing signal Input ON Press the “MAP”
button. RGB screen is
rolling.
44 (R/W) 45 RGB signal
(R: red) Input ON Select “Display
Diagnosis (NAVI)”
of CONFIRMA-
TION/ADJUST-
MENT function. RGB screen
looks bluish.
45 — Shield ground — — — — —
46 (R/L) 45 RGB signal
(G: green) Input ON Select “Display
Diagnosis (NAVI)”
of CONFIRMA-
TION/ADJUST-
MENT function. RGB screen
looks reddish.
47 — Shield ground — — — — —
48 (B) 45 RGB signal
(B: blue) Input ON Select “Display
Diagnosis (NAVI)”
of CONFIRMA-
TION/ADJUST-
MENT function. RGB screen
looks yellowish.
49 — Shield ground — — — — —
50 (L/R) 47 RGB signal
(R: red) Output ON Select “Display
Diagnosis (DCU)”
of CONFIRMA-
TION/ADJUST-
MENT function. RGB screen
looks bluish.
Terminal No.
(Wire color) Item Signal
input/
output Condition
Voltage Example of
symptom
+– Ignition
switch Operation
SKIA4402E
SKIA0164E
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SKIA4980E