Infiniti G37 Coupe. Manual — part 920
MWI-26
< FUNCTION DIAGNOSIS >
METER SYSTEM
METER ILLUMINATION CONTROL : Component Parts Location
INFOID:0000000001672056
METER ILLUMINATION CONTROL : Component Description
INFOID:0000000001606637
JPNIA0501ZZ
1.
Unified meter and A/C amp.
2.
BCM
3.
IPDM E/R
4.
Oil pressure switch
5.
Ambient sensor
6.
Combination meter
7.
Fuel level sensor unit and fuel pump
(main)
8.
Fuel level sensor unit (sub)
A.
Behind cluster lid C
B.
Oil pan (upper) RH side
C.
Condenser (front)
D.
Rear seat (lower right)
E.
Rear seat (lower left)
Unit
Description
Combination meter
Controls the meter illumination with the illumination control switch signal from the meter control
switch and the position light request signal from unified meter and A/C amp.
Unified meter and A/C amp.
Transmits the position light request signal received from BCM via CAN communication to the com-
bination meter by means of communication.
MWI
METER SYSTEM
MWI-27
< FUNCTION DIAGNOSIS >
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INFORMATION DISPLAY
INFORMATION DISPLAY : System Diagram
INFOID:0000000001606638
INFORMATION DISPLAY : System Description
INFOID:0000000001606639
DISCRIPTION
• The combination meter retrieves the information required for controlling the operations of the information
display from the communication signals from the unified meter and A/C amp., etc.
• The combination meter incorporates a trip computer that displays the warning / information according to the
information received from various units.
PARKING BRAKE RELEASE WARNING
The combination meter indicates parking brake release warning judged with the vehicle speed signal received
from the unified meter and A/C amp. by means of communication line and the parking brake switch signal from
the parking brake switch.
Warning operation condition
Parking brake release warning is judged if all of the following conditions are fulfilled
• Vehicle speed is 7 km/h (4.3 MPH) or higher
• Parking brake switch ON
LOW FUEL WARNING
The combination meter indicates low fuel warning judged with the fuel level sensor signal received from the
unified meter and A/C amp.
Warning operation condition
• Fuel level: Approx. 12 (3-1/8 US gal, 2-5/8 Imp gal) or less
LOW WASHER FLUID WARNING
The combination meter indicates low washer fluid warning judged with the signal from the washer level switch.
Warning operation condition
Meter control switch
Transmits the following signals to the combination meter.
• Illumination control switch signal (+)
• Illumination control switch signal (–)
Unit
Description
JSNIA0032GB
MWI-28
< FUNCTION DIAGNOSIS >
METER SYSTEM
• Indicates the warning when it is in washer level switch ON condition for 180 seconds or more. Release the
warning when it is in washer level switch OFF condition for 30 seconds or more.
DOOR/TRUNK OPEN WARNING
• The combination meter indicates door open warning judged with each door switch signal received from the
unified meter and A/C amp. by means of communication line.
• The combination meter indicates trunk open warning judged with the trunk switch signal received from the
unified meter and A/C amp. by means of communication line.
INSTANTANEOUS FUEL CONSUMPTION
• The unified meter and A/C amp. receives the fuel consumption monitor signal from ECM and the vehicle
speed signal from the ABS actuator and electric unit (control unit) with CAN communication line.
• The unified meter and A/C amp. calculates the instantaneous fuel consumption according to the fuel con-
sumption monitor signal and the vehicle speed signal received with CAN communication line, and transmits
it to the combination meter.
AVERAGE FUEL CONSUMPTION
• The unified meter and A/C amp. receives the fuel consumption monitor signal from ECM and the vehicle
speed signal from the ABS actuator and electric unit (control unit) with CAN communication line.
• The unified meter and A/C amp. calculates the average fuel consumption according to the fuel consumption
monitor signal and the vehicle speed signal received with CAN communication line, and transmits it to the
combination meter.
• The average fuel consumption displayed on the information display is uploaded at approximately 30-second
intervals.
NOTE:
“
−−−−
” is displayed for approximately 30 seconds just after the reset operation and after the ignition switch is
OFF
→
ON. It is displayed simultaneously until the vehicle drives approximately 500 m (0.31 mile).
AVERAGE VEHICLE SPEED
• The unified meter and A/C amp. receives the vehicle speed signal from the ABS actuator and electric unit
(control unit) via CAN communication line.
• Measures the time during the ignition switch ON with the unified meter and A/C amp.
• The unified meter and A/C amp. calculates the average vehicle speed according to the above signals. These
signals are transmitted to the combination meter with the communication line.
• The average vehicle speed displayed on the information display is uploaded at approximately 30-second
intervals.
NOTE:
“
−−−−
” is displayed for 30 seconds just after the reset operation and after the ignition switch is OFF
→
ON. It is
displayed simultaneously until the vehicle drives approximately 500 m (0.31 mile).
TRAVEL TIME
Measures the time during the ignition switch ON with the unified meter and A/C amp, and transmits it to the
combination meter by means of communication line.
TRAVEL DISTANCE
• The unified meter and A/C amp. transmits the vehicle speed signal from ABS actuator and electric unit (con-
trol unit) to the combination meter.
• The combination meter calculates the vehicle distance according to the vehicle speed signal. The vehicle
distance is displayed.
POSSIBLE DRIVING DISTANCE
JSNIA0033GB
MWI
METER SYSTEM
MWI-29
< FUNCTION DIAGNOSIS >
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The unified meter and A/C amp. calculates possible driving distance according to the vehicle speed signal
transmitted through CAN communication and the fuel level sensor signal transmitted from the fuel level sen-
sor. These signals are transmitted to the combination meter with the communication line.
NOTE:
• “
−−−−
” is displayed for 30 seconds after the ignition switch is OFF
→
ON. It is displayed simultaneously until
the vehicle drives approximately 500 m (0.31 mile).
• The indicated values may not match each other when filling the fuel with the ignition switch ON. Refer to
MWI-158, "INFORMATION DISPLAY : Description"
.
AMBIENT AIR TEMPERATURE
• The unified meter and A/C amp. receives the ambient sensor signal from the ambient sensor.
• The unified meter and A/C amp. calculates the ambient temperature according to the ambient sensor signal,
and transmits it to the combination meter.
• The indicated temperature is corrected by the ignition switch signal, the ambient sensor detection tempera-
ture, and the vehicle speed signal. It does not increase if the vehicle speed is less than 20 km/h (12 MPH).
Correction process (Ignition switch OFF
→
ON)
The ambient temperature sensor detection temperature is not displayed in real time if all of the following con-
ditions are fulfilled. The indicated temperature before the ignition switch OFF is displayed.
• The ignition switch OFF time is less than 3.5 hours.
• The ambient temperature sensor detection temperature is higher than the indicated temperature before the
ignition switch OFF.
Correction process (Ignition switch ON)
Perform the following correction if the ambient sensor detection temperature is higher than the indicated tem-
perature when the vehicle speed is 20 km/h (12 MPH) or more.
• Shorten the update time of the indicated temperature according to the increase of the vehicle speed.
• Increase the indicated temperature by 1
°
C (34
°
F) per 1 minute until it reaches to the ambient air tempera-
ture detection value when the ambient sensor detection temperature is higher than the indicated tempera-
ture at 8
°
C (46
°
F) or more.
NOTE:
The ambient sensor input value that is displayed on “Data Monitor” of CONSULT-III is the value before the cor-
rection. It may not match the indicated temperature on the information display.
SETTING
Setting item list
* : Press and hold the switch (1 second or more).
Items
Setting range
Setting unit
Description
ALERT
TIME TO REST
No setting - 6 hours
30 minutes,
[60 minutes]*
Time to rest is displayed on the informa-
tion display if the vehicle reached the set
travel distance.
ICY
ON/OFF
—
Low outside temerature is displayed on
the information display if the ambient tem-
perature is 3
°
C (37
°
F) or less.
MAINTENANCE
ENGINE OIL
No setting - 18,500 miles,
(No setting - 30,000 km)
250 miles (500 km),
[500 miles (1000 km)]*
The engine oil replacement interval is dis-
played on the information display if the ve-
hicle reached the set distance.
OIL FILTER
No setting - 18,500 miles,
(No setting - 30,000 km)
250 miles (500 km),
[500 miles (1000 km)]*
The oil filter replacement interval is dis-
played on the information display if the ve-
hicle reached the set distance.
TIRE
No setting - 18,500 miles,
(No setting - 30,000 km)
250 miles (500 km),
[500 miles (1000 km)]*
The tire replacement interval is displayed
on the information display if the vehicle
reached the set distance.
OTHER
No setting - 18,500 miles,
(No setting - 30,000 km)
250 miles (500 km),
[500 miles (1000 km)]*
The other replacement interval is dis-
played on the information display if the ve-
hicle reached the set distance.
DISPLAY
LANGUAGE
ENGLISH/FRANCAIS
—
Changing the language setting can be
performed.
UNIT
US/METRIC
—
Changing the unit setting can be per-
formed.
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