2004 INFINITI FX35 turn signal

AV-72
INTEGRATED DISPLAY SYSTEM
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for Display UnitAKS00BOD
Terminal No.
(Wire color)
ItemSignal
input/
outputCondition
VoltageExample of
symptom
+–Ignition
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 (G/R) Ground Ignition signal Input ON - Battery voltageA/C operation is
not possible.
Vehicle informa-
tion setting is not
possible.
4 (R/L) GroundIllumination
signalInput OFFLighting switch is
ON .Approx. 12VScreen does not
switch to night-
time mode after
the lighting switch
is turned ON. Llighting switch is
OFF.Approx. 0V
6 (B) Ground Ground - ON - Approx. 0V -
7 (R/G) GroundVehicle speed
signal (8-pulse)Input ONWhen vehicle
speed is approx.
40 km/h (25 MPH)Drive computer
item is not dis-
played correctly.
8 (LG) Ground Audio TX Output ONOperate audio
volume.Audio does not
operate properly.
9 - Shield ground - - - - -
10 (B/Y) Ground Audio RX Input ONOperate audio
volume.Audio does not
operate properly.
11 (B/R) GroundCommunica-
tion signal (+)Input/
outputON -System does not
work properly.
12 - Shield ground - - - - -
PKIA1935E
SKIA4402E
SKIA4403E
SKIA0175E

AV-74
INTEGRATED DISPLAY SYSTEM
Revision: 2004 November 2004 FX35/FX45
On Board Self-Diagnosis FunctionAKS00BOF
DESCRIPTION

Diagnosis function consists of the self-diagnosis mode performed automatically.

Self-diagnosis mode checks for connections between the units constituting this system, analyzes each
individual unit at the same time, and displays the results on the LCD screen.
DIAGNOSIS ITEM
Self-Diagnosis ModeAKS00BOG
OPERATION PROCEDURES
1. Start the engine.
2. Turn the audio system off.
3. While pressing the “MUTE/II ” switch, 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.)
4. Display unit connection check screen.
13 (G/W) GroundRemote con-
troller BInput ONPress POWER
switch.Approx. 0V
Audio steering
wheel switches
do not function. Press SEEK
DOWN switch.Approx. 1.7V
Press VOL DOWN
switch.Approx. 3.3V
Except for above Approx. 5V
14 (B/Y) -Remote con-
troller ground-- - -Audio steering
wheel switches
do not function. Terminal No.
(Wire color)
ItemSignal
input/
outputCondition
VoltageExample of
symptom
+–Ignition
switchOperation
Mode Item Description Reference page
Self-diagnosisNETWORK CHECKCheck network between control unit and switch connected
from display unit via communication line.AV-75, "
NETWORK CHECK"
PARTS CHECK
Perform diagnosis and setting of display unit.

Perform self-diagnosis for auto air conditioner system.AV- 7 6 , "PARTS CHECK"
VERSION CHECK Displays version of each unit.AV- 7 6 , "VERSION CHECK"
CAN DIAG MNTR Display unit displays CAN communication status.AV- 7 6 , "CAN DIAG MNTR
(CAN DIAG MONITOR)"
SKIA4971E

INTEGRATED DISPLAY SYSTEM
AV-77
C
D
E
F
G
H
I
J
L
MA
B
AV
Revision: 2004 November 2004 FX35/FX45
A/C and AV Switch Self-Diagnosis FunctionAKS00BOH
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.
DIAGNOSIS FUNCTION
The following are checked:

All the indicators (LED) in the A/C and AV switch.

Continuity of the switches by sounding the buzzer when the A/C and AV switch is pressed.

Continuity of harness between A/C and AV switch and steering switch (audio).
EXITING THE SELF-DIAGNOSIS MODE

Turn ignition switch OFF. Then the self-diagnosis ends.
SKIA4972E

AV-78
INTEGRATED DISPLAY SYSTEM
Revision: 2004 November 2004 FX35/FX45
Trouble Diagnosis Chart by SymptomAKS00BOI
Symptom Check item
No screen is shown.

Display unit power supply and ground circuit. Refer to AV- 7 9 , "Power Supply
and Ground Circuit Check for Display Unit" .

Display unit
Screen does not switch to nighttime mode after the
lighting switch is turned ON.

Illumination signal. Refer to AV-81, "Illumination Signal Inspection" .

Display unit
TRIP and FUEL ECON screen do not appear.

Ignition signal. Refer to AV- 8 2 , "Ignition Signal Inspection" .

Display unit

Trip odometer (DIST) is not added up.

Average vehicle speed (AVG) is not displayed.

Vehicle speed signal. Refer to AV- 8 0 , "Vehicle Speed Signal Inspection" .

Display unit
Average fuel consumption (AVG) is not displayed.

Vehicle speed signal. Refer to AV- 8 0 , "Vehicle Speed Signal Inspection" .

CAN communication line. Refer to AV- 8 5 , "CAN Communication Line Inspec-
tion" .

Display unit
Distance to empty (DTE) is not displayed.

Check if speedometer operates. If it does not operate, go to DI-17, "Vehicle
Speed Signal Inspection" .

Check if fuel gauge operates. If it does not operate, go to DI-20, "Fuel Level
Sensor Signal Inspection 1" .

CAN communication line. Refer to DI-22, "Communication Line Inspection" .

Display unit
Tire pressure is not displayed.

Ignition signal. Refer to AV- 8 2 , "Ignition Signal Inspection" .

Low tire pressure warning control unit. Refer to WT-17, "Self-Diagnosis" .

CAN communication line. Refer to DI-22, "Communication Line Inspection" .

Display unit
Door warning screen does not appear.

Ignition signal. Refer to AV- 8 2 , "Ignition Signal Inspection" .

Vehicle speed signal. Refer to AV- 8 0 , "Vehicle Speed Signal Inspection" .

CAN communication line. Refer to AV- 8 5 , "CAN Communication Line Inspec-
tion" .

Display unit
A/C and AV switch and all switch operation are not
possible.
(Do not start self-diagnosis.)Refer to AV-84, "
A/C and AV Switch Does Not Operate" .
Air conditioner operation is not possible.

A/C and AV switch. Refer to AV-41, "A/C and AV Switch Inspection" .

CAN communication line. Refer to AV- 8 5 , "CAN Communication Line Inspec-
tion" .

INTEGRATED DISPLAY SYSTEM
AV-79
C
D
E
F
G
H
I
J
L
MA
B
AV
Revision: 2004 November 2004 FX35/FX45
Power Supply and Ground Circuit Check for Display UnitAKS00BOJ
1. CHECK FUSE
Make sure that the following fuses in display 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
Check voltage between display 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 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 >> Repair harness or connector.
Unit Signal Fuse No.
Display unitBattery power supply 32
Ignition switch ACC or ON 6
Terminals Ignition switch position
(+)
(–) OFF ACC ON
ConnectorTerminal
(Wire color)
M621 (W/L) GroundBattery
voltageBattery
voltageBattery
voltage
2 (LG/R) Ground 0VBattery
voltageBattery
voltage
SKIB0373E
6, 15 – ground : Continuity should exist.
SKIA4986E

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-81
C
D
E
F
G
H
I
J
L
MA
B
AV
Revision: 2004 November 2004 FX35/FX45
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-17, "
Vehicle Speed Signal Inspection" .
Illumination Signal InspectionAKS00BOM
1. CHECK ILLUMINATION SIGNAL
1. Check voltage between display unit and ground.
OK or NG
OK >> INSPECTON END
NG >> Repair harness or connector.7 – 26 : Continuity should exist.
7 – Ground : Continuity should not exist.
SKIA4989E
7 – Ground:
SKIA4991E
PKIA1935E
Terminals
Lighting switch position
(+)
(–)
ConnectorTerminal
(Wire color)ON OFF
M62 4 (R/L) Ground Approx. 12V Approx. 0V
SKIB0446E

AV-82
INTEGRATED DISPLAY SYSTEM
Revision: 2004 November 2004 FX35/FX45
Ignition Signal InspectionAKS00BON
1. CHECK IGNITION SIGNAL
1. Disconnect display unit connector.
2. Turn ignition switch ON.
3. Check voltage between display unit harness connector M62 ter-
minal 3 (G/R) and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Audio Communication Line InspectionAKS00BOO
1. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect audio unit connector and display unit connector.
3. Check continuity between audio unit harness connector termi-
nals and display unit harness connector terminals.
4. Check continuity between display unit harness connector termi-
nals and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.3 – Ground : Battery voltage
SKIB0447E
Terminals
Continuity Display unit Audio unit
ConnectorTerminal
(Wire color)ConnectorTerminal
(Wire color)
M628 (LG)
M6023 (LG)
Ye s 10 (B/Y) 21 (B/Y)
925
SKIA9935E
Terminals
Continuity Display unit
Ground Connector Terminal (Wire color)
M628 (LG)
No
10 (B/Y)
SKIA9936E