air condition INFINITI FX35 2005 Service Manual

AV-44
AUDIO
Revision: 2005 July 2005 FX
4. CHECK AUDIO STEERING WHEEL SWITCH RESISTANCE
Check resistance audio steering wheel switch terminals.
OK or NG
OK >> INSPECTION END
NG >> Replace audio steering wheel switch.
A/C and AV Switch InspectionAKS007H9
1. A/C AND AV SWITCH SELF-DIAGNOSIS FUNCTION
1. Start A/C and AV switch self-diagnosis function. Refer to AV- 3 7 , "
A/C and AV Switch Self-Diagnosis Func-
tion" .
2. Operate A/C and AV switch.
Does the A/C and AV switch is operated normally?
YES >> INSPECTION END (System is OK)
NO >> Replace A/C and AV switch.
BOSE Speaker Amp. InspectionAKS007WD
1. CHECK HARNESS
1. Disconnect audio unit connector and BOSE speaker amp. con- nector.
2. Check continuity between audio unit harness connector M59 ter- minal 12 (G/W) and BOSE speaker amp. harness connector
B213 terminal 31 (P).
3. Check continuity between audio unit harness connector M59 ter- minal 12 (G/W) and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
Terminal
(Wire color) Signal name Condition Resistance
( Ω )
16
(L)
17
(BR) Power Depress power switch. Approx. 0
Seek down Depress (station) down switch. Approx. 165
Volume (down) Depress volume down switch. Approx. 652
20
(W) Mode Depress mode switch. Approx. 0
Seek up Depress (station) up switch. Approx. 165
Volume (up) Depress volume up switch. Approx. 652
SKIA5010E
12 (GW) – 31 (P) : Continuity should exist.
12 (GW) – Ground : Continuity should not exist.
SKIA6816E

AV-46
AUDIO
Revision: 2005 July 2005 FX
3. CHECK VEHICLE SPEED SIGNAL
1. Connect unified meter and A/C amp. connector.
2. Start engine and drive vehicle at more than 40 km/h (25MPH).
3. Check the signal between audio unit harness connector M60 terminal 22 (W/L) and ground with CON- SULT-ll or oscilloscope.
OK or NG
OK >> INSPECTION END (System is OK.)
NG >> Replace unified meter and A/C amp.
Locking CD Auto-Changer MechanismAKS007GD
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 mechanism from being damaged during
shipping.

If a CD is jammed or unable to be removed from the 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 sound 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.
Terminal Condition Reference
signal
(+) (–)
22
(W/L) Ground When vehicle
speed is approx.40
km/h (25MPH)
SKIA6809EELF1080D

AV-74
INTEGRATED DISPLAY SYSTEM
Revision: 2005 July 2005 FX
On Board Self-Diagnosis FunctionAKS005U8
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 ModeAKS005U9
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.
5. Select each connecting unit (CHANGER, SATELLITE RADIO).
13 (G/W) Ground Steering SW
B Input ON Press POWER
switch. Approx. 0 V
Audio steering
wheel switches
do not function.
Press SEEK
DOWN switch. Approx. 1.7 V
Press VOL DOWN
switch. Approx. 3.3 V
Except for above Approx. 5 V
14 (B/Y) — Steering SW
ground —— — — Audio steering
wheel switches
do not function.
Terminal No.
(Wire color) Item Signal
input/
output Condition
Voltage Example of
symptom
+– Ignition
switch Operation
Mode Item Description Reference page
Self-diagnosis NETWORK CHECK
Check 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 5 , "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)"
PKIB4131E
SKIA5921E

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.)
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

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-88
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX

In map-matching, alternative routes to reach the destination will
be shown and prioritized, after the road on which the vehicle is
currently driven has been judged and the current-location mark
has been repositioned.
If there is an error in distance and/or direction, the alternative
routes will be shown in different order of priority, and the wrong
road can be avoided.
If two roads are running in parallel, they are of the same priority.
Therefore, the current-location mark may appear on either of
them alternately, depending on maneuvering of the steering
wheel and configuration of the road.

Map-matching does not function correctly when the road on
which the vehicle is driving is new and not recorded in the map
DVD-ROM, or when the road pattern stored in the map data and
the actual road pattern are different due to repair.
When driving on a road not present in the map, the map-match-
ing function may find another road and position the current-loca-
tion mark on it. Then, when the correct road is detected, the
current-location mark may leap to it.

Effective range for comparing the vehicle position and travel
direction calculated by the distance and direction with the road
data read from the map DVD-ROM is limited. Therefore, when
there is an excessive gap between the current vehicle position
and the position on the map, correction by map-matching is not possible.
GPS (GLOBAL POSITIONING SYSTEM)
GPS (Global Positioning System) has been developed and con-
trolled by the US Department of Defense. The system utilizes GPS
satellite (NAVSTAR), sending out radio waves while flying on an orbit
around the earth at the height of approx. 21,000 km (13,000 miles).
The GPS receiver calculates the vehicle's position in three dimen-
sions (latitude/longitude/altitude) according to the time lag of the
radio waves received from four or more GPS satellites (three-dimen-
sional positioning). If radio waves were received only from three
GPS satellites, the GPS receiver calculates the vehicle's position in
two dimensions (latitude/longitude), utilizing the altitude data calcu-
lated previously by using radio waves from four or more GPS satel-
lites (two–dimensional positioning).
Accuracy of the GPS will deteriorate under the following conditions.

In two–dimensional positioning, the GPS accuracy will deteriorate when the altitude of the vehicle position
changes.

There may be an error of approximately 10 m (30 ft) in position detected by three-dimensional positioning,
which is more accurate than two–dimensional positioning. The accuracy can be even lower depending on
the arrangement of the GPS satellites utilized for the positioning.

Position detection is not possible when the vehicle is in an area where radio waves from the GPS satellite
do not reach, such as in a tunnel, parking lot in a building, and under an elevated highway. Radio waves
from the GPS satellites may not be received when some object is located over the GPS antenna.

Position correction by GPS is not available while the vehicle is stopped.
SEL686V
SKIA0613E
SEL526V

NAVIGATION SYSTEM AV-103
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Revision: 2005 July 2005 FX
TIRE PRESSURE

Pressure indication in psi on the screen indicates that the
pressure is being measured. After a few driving trips, the pres-
sures for all four tires will be displayed.

The order of tire pressure figures displayed on the screen does
not correspond with the actual order of the tire position.

Tire pressure rises and falls depending on the heat caused by
the vehicle's traveling condition and the temperature.

FLAT TIRE–very low tire air pressure.
NOTE:

In a case of FLAT TIRE pressure, interrupt screen is not shown
on the display.

On the screen of TIRE PRESSURE, “FLAT TIRE”, “Check”, “All tire” is displayed.
WARNING INDICATIONS
Warning signal (door switch signal) is received from BCM through
CAN communication line.
SKIA5994E
SKIA5995E
Warning
indicators Warning lamps in
instrument panel Warning detection and cancel conditions
Cases of
malfunction
DOOR OPEN Door Detection condition
Vehicle is running [approx. 5km/h (3 MPH) or faster]
and door ajar of any of the doors is detected. Door is open.
Cancel condition Vehicle is stopped and all the doors lock.

NAVIGATION SYSTEM AV-135
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If vehicle speed is NG, refer to AV- 1 4 6 , "Vehicle Speed Signal Check for Display Control Unit" .

If light is NG, refer to AV- 1 4 8 , "Illumination Signal Check for Display Control Unit" .

If IGN is NG, refer to AV- 1 4 8 , "Ignition Signal Check for Display Control Unit" .

If reverse is NG, refer to AV- 1 4 9 , "Reverse Signal Check for Display Control Unit" .
AUTO CLIMATE CONTROL
Refer to ATC Automatic Air Conditioner AT C - 5 3 , "Self-diagnosis Function" for details.
NAVIGATION
1. The initial screen will be shown, and items “Display Diagnosis”,
“Vehicle Signals”, “History of Errors” and “Navigation” will
become selective.
2. Select each switch on “CONFIRMATION/ADJUSTMENT” screen to display the relevant diagnosis screen.
DISPLAY DIAGNOSIS

When RGB signal error occurred in the RGB system, tone of the color bar will change as follows.

When the color of the screen looks unusual, refer to AV- 1 5 7 , "Color of RGB Image Is Not Proper (NAVI
Screen Looks Bluish)" , AV- 1 5 8 , "Color of RGB Image Is Not Proper (NAVI Screen Looks Reddish)" and
AV- 1 5 9 , "
Color of RGB Image Is Not Proper (NAVI Screen Looks Yellowish)" .
SKIA4226E
SKIA0362E
R (red) signal error : Screen looks bluish
G (green) signal error : Screen looks reddish
B (blue) signal error : Screen looks yellowish

NAVIGATION SYSTEM AV-147
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2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect display control unit connector and unified meter and A/C amp. connector.
3. Check continuity between display control unit harness connector M75 terminal 16 (R/G) and unified meter and A/C amp. harness
connector M56 terminal 26 (R/G).
4. Check continuity between display control unit harness connector M75 terminal 16 (R/G) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK VEHICLE SPEED SIGNAL
1. Connect display control unit connector and unified meter and A/ C amp. connector.
2. Start the engine.
3. Drive vehicle at a constant speed.
4. Check signal between display control unit harness connector M75 terminal 16 (R/G) and ground with CONSULT-ll or oscillo-
scope.
OK or NG
OK >> Replace display control unit.
NG >> Check unified meter and A/C amp. system. Refer to DI-20, "
Vehicle Speed Signal Inspection" .
Illumination Signal Check for NAVI Control UnitAKS00AUM
1. CHECK ILLUMINATION SIGNAL
Check voltage between NAVI control unit and ground.
OK or NG
OK >> Replace NAVI control unit.
NG >> Check harness for open or short between NAVI control unit and IPDM E/R. Continuity should exist.
Continuity should not exist.
PKIA2864E
16 (R/G) – Ground : Refer to AV- 1 2 1 , "Terminals and
Reference Value for Display Control
Unit" .PKIB6609E
Terminals
Condition Voltage
(+)
(–)
Connector Terminal
(Wire color)
B207 25 (R) Ground Lighting switch position
1st or 2nd position Approx. 12 V
Lighting switch OFF Approx. 0 V
SKIB0315E