display INFINITI FX35 2005 Service Manual

INTEGRATED DISPLAY SYSTEM AV-75
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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.)
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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" .

INTEGRATED DISPLAY SYSTEM AV-79
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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.
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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
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Continuity should exist.
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INTEGRATED DISPLAY SYSTEM AV-81
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2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect display unit connector and unified meter and A/C amp. connector.
3. Check continuity between display unit harness connector M62 terminal 7 (R/G) and unified meter and A/C amp. harness con-
nector M56 terminal 26 (R/G).
4. Check continuity between display unit harness connector M62 terminal 7 (R/G) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK VEHICLE SPEED SIGNAL
1. Connect unified meter and A/C amp. connector.
2. Drive vehicle at a constant speed.
3. Check the signal between display unit harness connector M62 terminal 7 (R/G) and ground with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace display unit.
NG >> Check unified meter and A/C amp. system. Refer to DI-20, "
Vehicle Speed Signal Inspection" .
Illumination Signal InspectionAKS005UF
1. CHECK ILLUMINATION SIGNAL
1. Turn ignition switch ON.
2. Check voltage between display unit and ground.
OK or NG
OK >> Replace display unit.
NG >> Check harness for open or short between display unit
and IPDM E/R.
Continuity should exist.
Continuity should not exist.
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7 (R/G) - Ground:
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Terminals Lighting switch position
(+)
(–)
Connector Terminal
(Wire color) 1st or 2nd position OFF
M62 4 (R/L) Ground Approx.12 V Approx. 0 V
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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.
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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)
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Approx. 3.5V or more
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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
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8 (LG) - Ground:
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10 (B/Y) - Ground:
SKIA4999ESKIA4403E

AV-84
INTEGRATED DISPLAY SYSTEM
Revision: 2005 July 2005 FX
AV Communication Line InspectionAKS005UI
1. CHECK A/C AND AV SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display unit connector and A/C and AV switch connector.
3. Check continuity between display unit and A/C and AV switch.
4. Check continuity between display unit and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK OF A/C AND AV SWITCH
Replace same normal A/C and AV switch and recheck the symptom.
Is the function normal?
YES >> Replace A/C and AV switch.
NO >> Replace display unit.
Terminals
Continuity
Display unit A/C and AV switch
Connector Terminal
(Wire color) Connector Te r m i n a l
(Wire color)
M62 11 (B/R)
M64 6 (B/R)
Ye s
13 (W/R) 8 (W/R)
12 7
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Te r m i n a l s Continuity
Connector Terminal (Wire color) Terminal
M62 11 (B/R)
Ground No
13 (W/R)
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