warning light INFINITI FX35 2008 Owner's Manual

DI-26
< SERVICE INFORMATION >
UNIFIED METER AND A/C AMP
UNIFIED METER AND A/C AMP
System DescriptionINFOID:0000000001328456
 For the unified meter and A/C amp., the signal required for controlling the combination meter are integrated
in the A/C auto amp.
 The unified meter and A/C amp. corresponds to a CONS ULT-III function (self-diagnosis results, CAN diag-
nosis support monitor, data monitor).
COMBINATION METER CONTROL FUNCTION
 Unified meter and A/C amp. receives necessary information for combination meter from each unit by CAN communication.
 Unified meter and A/C amp. transmits a signals with communication line (TX, RX) between unified meter and A/C amp. and combination meter.
Input/output signals between unified meter and A/C amp. and combination meter.
NOTE:
Combination meter performs fail-safe operation when unified meter and A/C amp. communication is malfunctioning. Refer to DI-5, "
Sys-
tem Description".
A/C AUTO AMP. FUNCTION
Unified meter and A/C amp. controls each operation for A/C auto amp. Regarding A/C control, refer to AT C -
24, "Description of Air Conditioner LAN Control System" in ATC section.
OTHER FUNCTIONS
Drive Computer Function
The signals required for the distance to empty (DTE) display are centralized in the unified meter and A/C
amp., converted into data, and transmitted to the disp lay unit (without NAVI) and display control unit (with
NAVI) using CAN communication.
Signal Buffer Function
Unified meter and A/C amp. transmits each signal to other units with CAN communication.
Unit Input Output
Unified meter and A/C amp.  Seat belt buckle switch signal (Driver's side)
 Parking brake signal
 Illumination control nighttime required signal
 Refuel status signal
 Low-fuel warning lamp condition signal
 Combination meter receive error signal
 Delivery destination data signal
 Combination meter specifications signal  Vehicle speed signal (8-pulse)
 Engine speed signal
 Engine coolant temperature signal
 Fuel level sensor signal (resistance value)
 Malfunction indicator lamp signal
 ABS warning lamp signal
 Low tire pressure warning lamp signal
 Run-flat tire wa
rning lamp signal
 Brake warning lamp signal
 A/T CHECK warning lamp signal
 ICC warning lamp signal
 Oil pressure switch signal
 Door switch signal
 AWD warning lamp signal
 Key warning lamp signal
 VDC OFF indicator lamp signal
 SLIP indicator lamp signal
 CRUISE indicator lamp signal
 SET indicator lamp signal
 High beam request signal
 Turn indicator signal
 Snow mode switch signal
 ICC system display signal
 Shift position indicator signal
 Manual mode indicator signal
 Manual mode gear position signal
 CAN communication condition signal of A/T
 Position lights request signal
 Buzzer output signal
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

DI-52
< SERVICE INFORMATION >
WARNING CHIME
 Unified meter and A/C amp. transmits buzzer output signal (ignition key warning chime) to combinationmeter with communication line.
 When combination meter receives buzzer output signal (ignition key warning chime), it sounds the buzzer.
When Intelligent Key Is Carried With The Driver
Refer to BL-78, "System Description".
LIGHT WARNING CHIME
With ignition switch in LOCK or ACC position, driver 's door is opened, and lighting switch in 1ST or 2ND posi-
tion, the light warning chime will sound.
 BCM detects ignition switch in LOCK or ACC position, front door switch (driver side) ON, and lighting switch
in 1ST or 2ND position. And then transmits buzzer output signal (light warning chime) to unified meter and A/
C amp. with CAN communication.
 Unified meter and A/C amp. transmits buzzer output signal (light warning chime) to combination meter with
communication line.
 When combination meter receives buzzer output signal (light warning chime), it sounds the buzzer.
NOTE:
For further details of combination switch, refer to BCS-4, "
System Description".
SEAT BELT WARNING CHIME
With ignition switch turned ON and driver's seat belt unfastened, seat belt warning chime will sound for
approximately 6 seconds.
 Combination meter reads a ON/OFF signal from seat bel t buckle switch (driver side), and transmits seat belt
buckle switch signal to unified meter and A/C amp. with communication line.
 BCM receives seat belt buckle switch signal from unified meter and A/C amp. with CAN communication.
 BCM detects ignition switch turned ON and seat bel t buckle switch (driver side) ON. And then transmits
buzzer output signal (seat belt warning chime) to unified meter and A/C amp. with CAN communication.
 Unified meter and A/C amp. transmits buzzer output signal (seat belt warning chime) to combination meter with communication line.
 When combination meter receives buzzer output signal (seat belt warning chime), it sounds the buzzer.
NOTE:
SKIB7258E
SKIB3858E
SKIB6482E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

WARNING CHIMEDI-53
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
DI
N
O P
When ignition key warning chime, light warning chime, and seat belt warning chime should be performed at
the same time, the priorities for each chime are the following.
1. Seat belt warning chime
2. Light warning chime
3. Ignition key warning chime
Component Parts and Har ness Connector LocationINFOID:0000000001328474
SKIB8485E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

WARNING CHIMEDI-57
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
DI
N
O P
Terminal and Reference Value for BCMINFOID:0000000001328477
CAUTION:
 Check combination switch system terminal wavef orm under the loaded condition with lighting
switch, turn signal and wipe r switch OFF not to be fluctuated by overloaded.
 Turn wiper dial position to 4 except when checking w aveform or voltage of wiper dial position. Wiper
dial position can be confirmed on CONSULT-III. Refer to LT-103, "
CONSULT-III Functions (BCM)".
TKWM4359E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

DI-58
< SERVICE INFORMATION >
WARNING CHIME
Te r -mi-
nal
No. Wire
color Item Measuring condition
Reference value
Igni-
tion
switc h Operation or condition
2G/Y Combination switch
input 5 ONLighting, turn, wiper switch
(Wiper intermittent dial posi-
tion 4) OFF Approx. 0 V
Lighting switch
1ST
Approx. 1.0 V
33 G Combination switch
output 4 ONLighting, turn, wiper switch
(Wiper intermittent dial posi-
tion 4) OFF
Approx. 7.2 V
Lighting switch
1ST Approx. 1.2 V
37 B/W Key switch signal OFF When key is removed to ignition key cylinder. Approx. 0 V
When key is inserted to ignition key cylinder. Battery voltage
38 W/L Ignition power supply ON — Battery voltage
39 L CAN-H OFF — —
40 P CAN-L OFF — —
42 L/R Battery power supply OFF — Battery voltage
49 B Ground ON — Approx. 0 V
52
55 G Battery power supp ly OFF — Battery voltage
62 W Front door switch DR
signal
OFF Front door switch DR ON (open) Approx. 0 V
OFF (closed)
Approx. 7.0 - 7.5 V
PKIB4959J
PKIB4960J
PKIB4958J
PKIB4960J
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

DI-60
< SERVICE INFORMATION >
WARNING CHIME
CONSULT-III Function (METER/M&A)
INFOID:0000000001328480
Refer to DI-27, "CONSULT-III Function (METER/M&A)" in “UNIFIED METER AND A/C AMP”.
CONSULT-III Function (BCM)INFOID:0000000001328481
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
DIAGNOSIS ITEMS DESCRIPTION
DATA MONITOR
Display Item List
ACTIVE TEST
Display Item List
SELF DIAGNOSTIC RESULT
Display Item List
NOTE:
14 PU RX communication line
(From unified meter and A/C
amp.) ON —
15 B Ground ON — Approx. 0 V
Te r m i n a l
No. Wire
color Item Measuring condition
Reference value
Ignition
switch Operation or condition
SKIA3362E
System Test item Diagnosis mode Description
BCM BUZZER Data Monitor Displays BCM input data in real time.
Active Test
Operation of electrical loads can be checked by sending driving signal
to them.
BCM Self Diagnostic Result BCM checks the conditions and displays memorized error.
Monitored item Description
IGN ON SW [On/Off] Indicates [On/Off] condition of ignition switch.
KEY ON SW [On/Off] Indicates [On/ Off] condition of key switch.
DOOR SW-DR [On/Off] Indicates [On/Off] condition of front door switch (driver side).
LIGHT SW 1ST [On/Off] Indicates [On/Off] condition of lighting switch.
BUCKLE SW [On/Off] Indicates [On/Off] condition of seat belt switch (driver side).
Test item Malfunction is detected when···
LIGHT WARN ALM This test is able to check light warning chime operation.
IGN KEY WARN ALM This test is able to ch eck ignition key warning chime operation.
SEAT BELT WARN TEST This test is able to check seat belt warning chime operation.
Monitored Item CONSULT-llI display Description
CAN communication CAN communication [U1000] Malfunction is detected in CAN communication.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

WARNING CHIMEDI-61
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
DI
N
O P
If “CAN communication [U1000]” is indicated, after prin ting the monitor item, go to “LAN system”. Refer to
LAN-43, "
CAN System Specification Chart".
Trouble DiagnosisINFOID:0000000001328482
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to DI-51, "
System Description".
3. Perform the preliminary inspection. Refer to "PRELIMINARY INSPECTION".
4. Referring to trouble diagnosis chart, make sure the cause of the malfunction and repair or replace applica-
ble parts. Refer to DI-61, "
Symptom Chart".
5. Does the warning chime operate normally? If so, GO TO 6. If not, GO TO 3.
6. INSPECTION END
PRELIMINARY INSPECTION
1.CHECK BCM (CONSULT-III)
Perform self-diagnosis of BCM. Refer to DI-60, "
CONSULT-III Function (BCM)".
Self
-diagnosis results
No malfunction detected >> GO TO 2.
Malfunction detected >> Check applicable parts, and repair or replace corresponding parts.
2.CHECK UNIFIED METER AND A/C AMP. (CONSULT-III)
Perform self-diagnosis of unified meter and A/C amp. Refer to DI-27, "
CONSULT-III Function (METER/M&A)".
Self
-diagnosis results
No malfunction detected >> INSPECTION END
Malfunction detected >> Check applicable parts, and repair or replace corresponding parts.
Symptom ChartINFOID:0000000001328483
Power Supply and Ground Circuit InspectionINFOID:0000000001328484
1.CHECK FUSE AND FUSIBLE LINK
Check for blown BCM fuses and fusible link.
Symptom Diagnoses/Service procedure
All warning chimes do not activate. Perform the following inspections.
1.
DI-62, "
Combination Meter Buzzer Circuit Inspection".
2. DI-61, "
Power Supply and Ground Circuit Inspection".
Replace BCM, found normal function in the above inspections.
Ignition key
warning chime
does not acti-
vate. Without Intelligent Key.
Perform the following inspections.
1.
DI-63, "
Front Door Switch (Drive r Side) Signal Inspection".
2. DI-64, "
Key Switch Signal Inspection (Without Intelligent Key)".
Replace BCM, found normal function in the above inspections.
With Intelligent Key, when mechan-
ical key is used. Perform the following inspections.
1.
DI-63, "
Front Door Switch (Drive r Side) Signal Inspection".
2. DI-65, "
Key Switch and Ignition Knob Switch Signal Inspection (With In-
telligent Key, When Mechanical Key Is Used)".
Replace BCM, found normal function in the above inspections.
With Intelligent Key, when Intelli-
gent Key is carried with the driver. Refer to
BL-106, "
Trouble Diagnosis Symptom Chart".
Light warning chime does not activate. Perform the following inspections.
1.
DI-63, "
Front Door Switch (Drive r Side) Signal Inspection".
2. LT- 1 0 4 , "
Combination Switch Inspection".
Replace BCM, found normal function in the above inspections.
Seat belt warning chime does not activate. Perform
DI-66, "
Seat Belt Buckle Switch (D river Side) Signal Inspection".
Replace BCM, found normal function in the above inspection.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

DI-62
< SERVICE INFORMATION >
WARNING CHIME
OK or NG
OK >> GO TO 2.
NG >> Be sure to eliminate cause of malfunction before installing new fuse or fusible link. Refer to PG-3
.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between BCM harness connector terminals and
ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness between BCM and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM harness connector M35 terminal 52 and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Combination Meter Buzzer Circuit InspectionINFOID:0000000001328485
1.CHECK OPERATION OF COMBINATION METER BUZZER
1. Select “BUZZER” of “BCM” on CONSULT-III.
2. Perform “LIGHT WARN ALM”, “IGN KEY WARN AL M” or “SEAT BELT WARN TEST” of “Active Test”.
Does chime sound?
YES >> GO TO 4.
NO >> GO TO 2.
2.CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “METER/M&A” on CONSULT-III.
2. Operate switches to meet the requirements to s ound warning chime with “BUZZER” of “Data Monitor” and
check operation status.
Power source Fuse and fusible link No.
Battery power supply M
22
Ignition power supply 1
Terminals Ignition switch position
(+) (–) OFF ON
Connector Terminal
M34 38 Ground0 V Battery voltage
M35 42
Battery voltage Battery voltage
55
PKIB3988E
52 – Ground : Continui ty should exist.
PKIB5011E
“BUZZER”
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

DI-66
< SERVICE INFORMATION >
WARNING CHIME
OK or NG
OK >> GO TO 3.
NG >> Replace key switch and ignition knob switch.
3.CHECK KEY SWITCH AND IGNITION KNOB SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M3 terminal 37 and key switch and ignition knob switch harness connector
M22 terminal 4.
3. Check continuity between BCM harness connector M3 terminal 37 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4.CHECK KEY SWITCH PO WER SUPPLY CIRCUIT
Check voltage between key switch and ignition knob switch harness
connector M22 terminal 3 and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-13, "Removal and Installa-
tion of BCM".
NG >> Check harness between key switch and ignition knob switch and fuse.
Lighting Switch Signal InspectionINFOID:0000000001328489
1.CHECK BCM INPUT SIGNAL
1. Select “BCM” on CONSULT-III.
2. With “Data Monitor” of “BUZZER”, confirm “LIG HT SW 1ST” when the lighting switch is operated.
OK or NG
OK >> INSPECTION END
NG >> Check the lighting switch. Refer to LT-104, "
Combination Switch Inspection".
Seat Belt Buckle Switch (Driver Side) Signal InspectionINFOID:0000000001328490
1.CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “METER/M&A” on CONSULT-III.
2. With “Data Monitor” of “MET ER/M&A”, confirm “SEAT BELT W/L” when the seat belt is operated.
37 – 4 : Continuity should exist.
37 – Ground : Continuity should not exist.
PKIB3578E
3 – Ground : Battery voltage
SKIA5063E
“LIGHT SW 1ST”
Lighting switch ON (1st position) : On
Lighting switch OFF : Off
“SEAT BELT W/L”
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

LANE DEPARTURE WARNING SYSTEMDI-69
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
DI
N
O P
LANE DEPARTURE WARNING SYSTEM
Precaution for Lane Depa rture Warning (LDW) systemINFOID:0000000001328492
WARNING:
Lane Departure Warning (LDW) is only a warning d evice to inform the driver of an unintended lane
departure. It will not steer the vehicle or prevent loss of control. It is the driver's responsibility to stay
alert, drive safely, keep the vehicle in the traveling lane, and be in control of the vehicle at all times.
 LDW system does not operate u nder the following conditions:
- At speeds below approx. 72 km/h (45 MPH).
- If it cannot detect lane markers.
 LDW system may not function proper ly under the following conditions:
- On roads where a water puddle, dirt or snow is covering the lane markers.
- On roads where the lane markers are faded or are not painted clearly.
- On roads where the lane markers are painted yellow.
 LDW system may not monitor the lane markers in certain road, weather or driving conditions.
- On roads where there are sharp curves.
- Where the traveling lane merges or separates.
- On roads where the discontinued lane marker s are present, such as near tollgates, etc.
- On roads where there are not general lane markers.
- On roads where the lane width is too narrow.
- During bad weather (rain, fog, snow, etc.).
- When strong light (for example, at sunrise or sunse t) is directly shining on the front of the vehicle.
- When entering or exiting a tunnel wher e sudden changes in brightness occur.
- When traveling close to the vehicle in front of you, which causes obstruction of the camera unit
range.
- When the vehicle's traveling direction does not align with the lane marker.
- When rain, snow or dirt adhere to the windshield in front of the camera unit.
 Excessive noise interferes with warning system ch ime sound and the chime may not be heard.
CAUTION:
To keep the LDW system operating proper ly, be sure to observe the following:
 Always keep the windshield clean. The sensing capability of the camera unit depends on the condi-
tion of the windshield. See “Appearan ce and care” for cleaning instruction.
 Never strike or damage the areas around the camera unit.
 Never touch the camera lens.
 Never attach a sticker (including transparent mate rial) or install an accessory near the camera unit.
 Never place reflective materials, such as a white pape r or mirrors on the instrument panel. Reflection
of the sunlight may adversely affect the camera unit's lane marker detection capability.
System DescriptionINFOID:0000000001328493
LDW SYSTEM OPERATION
 The Lane Departure Warning (LDW) system warns the driver when the vehicle is traveling close to either the
left or the right of the traveling lane.
 The system monitors lane markers of the traveling lane using the LDW camera unit. When the LDW camera
unit detects that the vehicle is traveli ng close to either the left or the right of the traveling lane, the LDW indi-
cator lamp flashes and a chime sounds to alert the driver.
NOTE:
When activating turn signal, LDW system does not give a warning to the lane marker on the turn signal side.
 The LDW system can be turned on or off by pushing t he LDW switch. When the system is on, the LDW sys-
tem ON indicator illuminates.
 The LDW system has an automatic mode and manual mode.
In the automatic mode
- LDW system automatically turns on, when the i gnition switch is turned to the ON position.
- LDW system ON indicator located on the LDW swit ch illuminates, indicating that the system is on.
- To cancel LDW system, push the LDW switch to turn off LDW system ON indicator.
- To turn on the system, push LDW switch again.
In the manual mode- LDW system is still off when the igniti on switch is turned to the ON position.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C