pg power INFINITI FX35 2004 Service Manual

AV-80
INTEGRATED DISPLAY SYSTEM
Revision: 2004 November 2004 FX35/FX45
Power Supply and Ground Circuit Check for A/C and AV SwitchAKS00BOK
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
1. Check voltage between A/C and AV switch harness connector
terminals and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
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 >> Repair harness or connector.
Vehicle Speed Signal InspectionAKS00BOL
1. VEHICLE SPEED OPERATION CHECK
Does speedmeter is operated normally?
YES or NO
YES >> GO TO 2.
NO >> Check combination meter trouble diagnosis. Refer to DI-13, "
Diagnosis Flow" .
Unit Power source Fuse No.
A/C and AV switchBattery 32
Ignition switch ACC or ON 6
Terminals Ignition switch position
(+)
(–) OFF ACC ON
ConnectorTerminal
(Wire color)
M641 (W/L) GroundBattery
voltageBattery
voltageBattery
voltage
2 (LG/R) Ground 0VBattery
voltageBattery
voltage
SKIA8937E
5 – Ground : Continuity should exist.
SKIA4988E

INTEGRATED DISPLAY SYSTEM
AV-87
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AV
Revision: 2004 November 2004 FX35/FX45
4. CHECK AUDIO STEERING WHEEL SWITCH
Check resistance audio steering wheel switch connector M203 ter-
minals.
OK or NG
OK >> Replace A/C and AV switch.
NG >> Replace audio steering wheel switch.
Removal and Installation of DisplayAKS00BOS
REMOVAL
1. Remove audio unit. Refer to AV- 4 4 , "Removal and Installation of
Audio Unit" .
2. Remove screws (4), and remove display.
INSTALLATION
Install in the reverse order of removal.
Removal and Installation of A/C and AV SwitchAKS00BOT
Refer toAV- 4 5 , "Removal and Installation for A/C and AV Switch" .
Terminal
(Wire color)Switch name ConditionResistance
(Ω)
16
(L)
17
(BR)Power Depress power switch. Approx. 0
Seek down Depress seek down switch. Approx. 165
Volume (down) Depress volume down switch. Approx. 652
20
(W)Mode Depress mode switch. Approx. 0
Seek up Depress seek up switch. Approx. 165
Volume (up) Depress volume up switch. Approx. 652
SKIA9400E
SKIA6167E

NAVIGATION SYSTEM
AV-121
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AV
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for NAVI Control UnitAKS00BMY
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference valueExample of
symptom
+–Igni-
tion
switchOperation
1 (B) Ground Ground – ON – Approx. 0V –
2 (Y)
GroundBattery
power supplyInput OFF – Battery voltageSystem does not
work properly.
3 (Y)
4 (B) Ground Ground – ON – Approx. 0V –
6 (LG) GroundACC power
supplyInput ACC – Battery voltageSystem does not
work properly.
7 (LG) 8 (PU)Voice guide
signalOutput ONPress the “GUIDE/
VOICE”button.Only route guide
and operation
guide are not
heard.
9–Shield
ground–– – – –
14 –Shield
ground–– – – –
15 (B) 17RGB signal
(B: blue)Output ONSelect “Display
Diagnosis (NAVI)” of
CONFIRMATION/
ADJUSTMENT
function.NAVI screen
looks yellowish.
16 (G) 14RGB syn-
chronizing
signalOutput ONPress the “MAP”
button.NAVI screen is
rolling.
17 –Shield
ground–– – – –
18 (R) 17RGB signal
(R: red)Output ONSelect “Display
Diagnosis (NAVI)” of
CONFIRMATION/
ADJUSTMENT
function.NAVI screen
looks bluish.
21 (W) 17RGB signal
(G: green)Output ONSelect “Display
Diagnosis (NAVI)” of
CONFIRMATION/
ADJUSTMENT
function.NAVI screen
looks reddish.
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NAVIGATION SYSTEM
AV-123
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Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for Display Control UnitAKS00BMZ
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference valueExample of
symptom
+–Igni-
tion
switchOperation
1 (W/L) GroundBattery
Power supplyInput OFF – Battery voltageSystem does not
work properly.
2 (W/G) GroundPower Sup-
ply (Inverter) Output ON – Approx. 9VScreen is not
shown
3 (B) Ground Ground – ON – Approx. 0V –
4 (BR/W) GroundPower Sup-
ply (Signal) Output ON – Approx. 9VScreen is not
shown
5 (P) Ground(Inverter)
Ground – ON – Approx. 0VScreen is not
shown
6 (OR) GroundReverse
signalInput ONSelector lever in R
positionApprox. 12V
Impossible to
gain direction of
vehicle. Selector lever
except R positionApprox. 0V
7 (P/L) Ground(Signal)
Ground – ON – Approx. 0V –
10 (LG/R) GroundACC power
supplyInput ACC – Battery voltageSystem does not
work properly.
12 (G/R) Ground Ignition signal Input ON – Battery voltageA/C operation is
not possible.
Vehicle informa-
tion setting is not
possible.
13 (B) Ground sysco – ON – Approx. 0V –
14 (R/L) GroundIllumination
signalInput OFFLighting switch is
ON.Approx. 12VAudio unit illumi-
nation does not
come on when
lighting switch is
ON. Lighting switch is
OFF.Approx. 0V
16 (R/G) GroundVehicle
speed signal
(8–pulse)Input ONWhen 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) GroundCommunica-
tion signal (+)Input/
OutputON –System does not
work properly.
29 –Shield
ground–– – – –
PKIA1935E
SKIA0175E

NAVIGATION SYSTEM
AV-127
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AV
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for DisplayAKS00BN0
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference valueExample of
symptom
+–Ignition
switchOperation
1 (B) Ground Ground – ON – Approx. 0V –
2 (W/G) GroundPower supply
(Inverter) Input ON – Approx. 9VScreen is not
shown
3 (BR/W) GroundPower supply
(Signal) Input ON – Approx. 9VScreen is not
shown
6 (L/W) 7RGB signal (G:
green)Input ONSelect “Display
Diagnosis (DCU)”
of CONFIRMA-
TION/ADJUST-
MENT function.RGB screen
looks reddish.
7 – Shield ground – – – – –
8 (R) 21Horizontal syn-
chronizing (HP)
signalOutput ON –RGB screen
is not shown.
9 (B) 21RGB area (YS)
signalInput ONPress the “TRIP”
button.Rear view is
not displayed.
11 ( P U ) 2 3Display communi-
cation signal
(DCU-DSP)Input ON –Though a
screen is dis-
played, it is
impossible to
adjust bright-
ness.
13 (P) Ground(Inverter)
Ground – ON – Approx. 0V –
14 (P/L) Ground(Signal)
Ground – ON – Approx. 0V –
17 (L/R) 7RGB signal (R:
red)Input ONSelect “Display
Diagnosis (DCU)”
of CONFIRMA-
TION/ADJUST-
MENT function.RGB screen
looks bluish.
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NAVIGATION SYSTEM
AV-129
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AV
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for A/C and AV SwitchAKS00BN1
Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Reference valueExample of
symptom
+–Igni-
tion
switchOperation
1 (W/L) GroundBattery power
supplyInput OFF – Battery voltageSystem does not
work properly.
2 (LG/R) GroundACC power
supplyInput ACC – Battery voltageSystem does not
work properly.
3 (R/L) GroundIllumination
signal Input OFFLighting switch is
ON.Approx. 12VA/C and AV
switch illumina-
tion does not
come on when
lighting switch is
ON. Turn lighting switch
OFF.Approx. 0V
4 (R/Y) GroundIllumination
control signalInput ONIllumination control
switch is operated
by lighting switch in
ON position.Chenges between approx. 0V
and approx. 12V A/C and AV
switch illumina-
tion does not
come on when
lighting switch is
ON.
5 (B) Ground Ground – ON – Approx. 0V –
6 (B/R) GroundCommunica-
tion signal (+)Input/
OutputON –System does not
work properly.
7–Shield
ground –– – – –
8 (W/R) GroundCommunica-
tion signal (–)Input/
OutputON –System does not
work properly.
SKIA0175E
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NAVIGATION SYSTEM
AV-133
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Revision: 2004 November 2004 FX35/FX45
SELF–DIAGNOSIS RESULT
Quick reference table
1. Select a malfunctioning diagnosis No. in the diagnosis result quick reference table.
2. Find estimated malfunctioning system in the diagnosis No. table and perform check by referring to AV-
11 6 , "Wiring Diagram — COMM —" .
3. Turn the ignition switch OFF and perform self-diagnosis again.
*: DCU = Display control unit
CAUTION:

When A/C and AV switch has a malfunction, you cannot start. Refer to AV- 1 7 1 , "Unable to Oper-
ate All of A/C and AV switch (Unable to start Self-Diagnosis)" .

When display has a malfunction, you cannot start. Refer to AV- 1 6 7 , "Screen is Not Shown" .
Self-Diagnosis Codes
Self-Diagnosis Mode (NAVI)AKS00BN4
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system off.
3. While pressing the “MUTE/II ” button, turn the volume control
dial clockwise or counterclockwise for 30 clicks or more. (When
the self-diagnosis mode is started, a short beep will be heard.)

Shifting from current screen to previous screen is performed
by pressing “PREV” button.
4. The initial trouble diagnosis screen will be shown, and items
“Self-Diagnosis (DCU)”, “Self-Diagnosis (NAVI)”, “Confirmation/
Adjustment” and “CAN DIAG SUPPORT MONITOR” will
become selective.
Screen switch
Diagnosis
No.
Switch color DCU* Display Audio unit NavigationGPS
antenna
Red×1
Gray××2
××3
×××4
Diagnosis
No.Possible causeReference
page
1 Display control unit malfunctionAV-183
2 Display communication line between display control unit and display. AV-156
3Audio unit power supply and ground circuit.
Audio communication line between display control unit and audio unit.AV-154
4NAVI control unit power supply and ground circuit.
AV communication line between and display control unit and NAVI control unit.AV-153
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NAVIGATION SYSTEM
AV-141
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AV
Revision: 2004 November 2004 FX35/FX45
NAVIGATION
1. The initial trouble diagnosis screen will be shown, and items
“Display Longitude & Latitude”,“Speed Calibration”,“Angle
Adjustment” and “Initialize Location” will become selective.
2. Select each switch on “NAVIGATION” screen to display the rele-
vant diagnosis screen.
GPS ROM
malfunction
GPS RAM
malfunctionContents of ROM (or RAM) in GPS substrate are malfunctioning.

Location detection accuracy of the navigation
system will deteriorate, depending on the error
area in the memory, because GPS cannot
make correct positioning.
(Location correction using GPS is not per-
formed.)

Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS RTC
malfunctionClock IC in GPS substrate is malfunctioning.

Correct time may not be displayed.

After the power is turned on, the system
always takes some time until GPS positioning
becomes possible. (The GPS receiver starts
positioning without re-collecting the whole sat-
ellite information when it judged the data
stored in the receiver is correct.)

Correct time of error occurrence may not be
stored in the ″History of Errors″.

Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS antenna
disconnectedMalfunctioning connection between GPS substrate in NAVI control
unit and GPS antenna.

Navigation location detection performance
has deteriorated.
(Location correction using GPS is not per-
formed.)

GPS receiving status remains gray.

Perform self-diagnosis.

When connection between NAVI control unit and GPS antenna
is judged normal by self-diagnosis, the symptom may be inter-
mittent, caused by impact or vibration.
Low voltage
of GPSThe power voltage supplied to the GPS circuit board has
decreased.

Navigation location detection performance
has deteriorated.
(Location correction using GPS is not per-
formed.)

GPS receiving status remains gray.

Perform self-diagnosis.

When connection between NAVI control unit and GPS antenna
is judged normal by self-diagnosis, the symptom may be inter-
mittent, caused by impact or vibration.
DVD-ROM
Malfunction
DVD-ROM
Read error
DVD-ROM
Response
ErrorMalfunctioning NAVI control unit -
Dedicated map DVD-ROM is in the system, but the data cannot be
read.

The map of a particular location cannot be dis-
played.

Specific guidance information cannot be dis-
played.

Map display is slow.

Guidance information display is slow.

System has been affected by vibration.

Is map DVD-ROM damaged, warped, or dirty?
–If damaged or warped, the map DVD-ROM is malfunctioning.
–If dirty, wipe the DVD-ROM clean with a soft cloth.

Perform self-diagnosis.

When NAVI control unit is judged normal by self-diagnosis, the
symptom is judged intermittent, caused by vibration. Error itemPossible causes
Example of symptom
Action/symptom
SKIA4576E

NAVIGATION SYSTEM
AV-145
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AV
Revision: 2004 November 2004 FX35/FX45
Power Supply and Ground Circuit Check for NAVI Control UnitAKS00BN7
1. CHECK FUSE
Make sure that the following fuses of the NAVI control unit are not 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
1. Check voltage between NAVI control unit harness connector ter-
minals and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector.
3. Check continuity between NAVI control unit harness connector
B208 terminals 1 (B), 4 (B) and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Unit Signal Fuse No.
NAVI control unitBattery power supply 32
ACC power supply 6
Terminals Ignition switch position
(+)
(–) OFF ACC ON
ConnectorTerminal
(Wire color)
B2082 (Y), 3 (Y)
GroundBattery
voltageBattery
voltageBattery
voltage
6 (LG) 0VBattery
voltageBattery
voltage
SKIA8932E
1, 4 – Ground : Continuity should exist.
PKIA2853E

AV-146
NAVIGATION SYSTEM
Revision: 2004 November 2004 FX35/FX45
Power Supply and Ground Circuit Check for Display Control UnitAKS00BN8
1. CHECK FUSE
Make sure that the following fuses of the display control unit are not 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
1. Check voltage between display control unit harness connector
terminals and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display control unit.
3. Check continuity between display control unit harness connector
M75 terminal 3 (B) and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Unit Signal Fuse No.
Display control unitBattery power supply 32
ACC power supply 6
Terminals Ignition switch position
(+)
(–) OFF ACC ON
ConnectorTerminal
(Wire color)
M751 (W/L)
GroundBattery
voltageBattery
voltageBattery
voltage
10 (LG/R) 0VBattery
voltageBattery
voltage
SKIA8930E
3 – Ground : Continuity should exist.
PKIA2855E