Nissan Maxima. Manual — part 852
MWI
METER SYSTEM
MWI-23
< SYSTEM DESCRIPTION >
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WARNING LAMPS/INDICATOR LAMPS : Component Description
INFOID:0000000010049558
INFORMATION DISPLAY
INFORMATION DISPLAY : System Diagram
INFOID:0000000010049559
INFORMATION DISPLAY : System Description
INFOID:0000000010049560
FUNCTION
The information display can indicate the following items.
• Outside air temperature
• Trip/fuel consumption readings
• Intelligent Key operation information
• Tire pressure information
• Maintenance information
• Warning/Indication messages (Door ajar, low fuel, low washer fluid, parking brake, cruise control, loose fuel
cap, check tire pressure)
OUTSIDE AIR TEMPERATURE INDICATION
The outside air temperature indication is displayed while the ignition switch is in the ON position.
Indication range is between -30 and 55
°C (-22 and 131°F). When outside temperature is less than 3°C (37°F),
display shows ICY. The indicated temperature is not affected by engine heat. It changes only when one of the
following conditions exists.
• When vehicle speed is more than approximately 20 km/h (12 MPH).
• The ignition switch has been turned OFF for more than 3.5 hours.
• When outside air temperature is less than the indicated temperature.
4.
TCM F15
5.
BCM M18, M19, M20, M21 (view with
instrument panel removed)
6.
ABS actuator and electric unit (control
unit) E26
7.
Fuel level sensor unit and fuel pump
(fuel level sensor) B42 (view with rear
seat and inspection hole cover re-
moved)
⇐: Front
8.
Oil pressure switch F41 (view with en-
gine removed)
9.
Parking brake switch E35 (view with in-
strument lower cover LH removed)
Unit
Description
Combination meter
Turns the oil pressure warning lamp ON/OFF according to the oil pressure switch signal received
from BCM by means of communication.
IPDM E/R
Reads the ON/OFF signals from the oil pressure switch and transmits the oil pressure switch signal
to the combination meter via BCM with the CAN communication line.
Oil pressure switch
Refer to
BCM
Transmits the oil pressure switch signal received from IPDM E/R via CAN communication to the
combination meter via CAN communication.
AWNIA2689GB
MWI-24
< SYSTEM DESCRIPTION >
METER SYSTEM
MPG
Average fuel consumption indication is calculated using vehicle speed signals from the ABS actuator and elec-
tric unit (control unit) and fuel consumption information from the ECM.
MPG/MPH
The average speed mode can be selected to display the average fuel consumption and average speed since
last reset. The indications are calculated using vehicle speed signals from the ABS actuator and electric unit
(control unit) and fuel consumption information from the ECM.
RANGE
The range indication provides the driver with an estimation of the distance that can be driven before refueling.
The range is calculated using signals from the fuel level sensor unit and fuel pump (fuel level sensor) (fuel
remaining), ECM (fuel consumption) and vehicle speed signals from the ABS actuator and electric unit (control
unit).
TIRE PRESSURE DISPLAY
Displays the individual tire pressure details. The BCM sends the tire pressure signals to the combination meter
via CAN communication lines.
DOOR AJAR WARNING
This warning appears when the Intelligent Key is in the vehicle and any door or the trunk is opened.
LOW FUEL WARNING
This warning appears when the fuel level in the fuel tank reaches approximately 12.3 (3 1/4 US gal, 2 3/4
Imp gal). A variable resistor signal is supplied to the combination meter from the fuel level sensor unit and fuel
pump (fuel level sensor) to determine the amount of fuel in the fuel tank.
LOOSE FUEL CAP WARNING
The LOOSE FUEL CAP indicator will display in the information display when the fuel-filler cap is not tightened
correctly. The indicator will turn off as soon as the ECM detects the fuel-filler cap is properly tightened. The
ECM provides a loose fuel cap signal to the combination meter via CAN communication lines.
CHECK TIRE PRESSURE WARNING
The CHECK TIRE PRESSURE indicator will display in the information display when BCM has detected a low
tire pressure condition. After 8 seconds, the Tire Pressure Warning Mode will flash and the low tire pressure
will be highlighted (one of the four numbers). These two screens will continue to toggle every eight seconds
until the low tire pressure condition has been corrected and the vehicle has been driven above 25 km/h (16
MPH).
LOW WINDSHIELD WASHER FLUID WARNING
This warning appears when the windshield washer fluid level is low. When the windshield washer fluid level is
low, the washer fluid level switch provides a ground signal to the combination meter (unified meter control
unit). The message will be displayed after the ignition switch is turned on for 3 minutes. Once fluid is added,
the message will stay on for 30 seconds and then turn off.
PARKING BRAKE INDICATOR
When the ignition switch is in the ON position and the parking brake is depressed, the indicator will turn on.
When the parking brake is depressed, the parking brake switch provides a ground signal to the combination
meter (unified meter control unit). Then, when the ignition switch is turned ON and vehicle speed is greater
than 5 km/h (3 MPH), the message is displayed.
CRUISE SET INDICATOR
The cruise set indicator message is displayed when the vehicle speed is controlled by the ASCD system. The
ECM provides an ASCD ON signal to the combination meter (unified meter control unit) via CAN communica-
tion lines.
MWI
METER SYSTEM
MWI-25
< SYSTEM DESCRIPTION >
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INFORMATION DISPLAY : Component Parts Location
INFOID:0000000010049561
1.
Combination meter M23, M24
2.
IPDM E/R E17, E18, E201, F10
3.
ECM E10
AWNIA2477GB
MWI-26
< SYSTEM DESCRIPTION >
METER SYSTEM
INFORMATION DISPLAY : Component Description
INFOID:0000000010049562
4.
TCM F15
5.
BCM M18, M19, M20, M21 (view with
instrument panel removed)
6.
ABS actuator and electric unit (control
unit) E26
7.
Fuel level sensor unit and fuel pump
(fuel level sensor) B42 (view with rear
seat and inspection hole cover re-
moved)
⇐: Front
8.
Oil pressure switch F41 (view with en-
gine removed)
9.
Parking brake switch E35 (view with in-
strument lower cover LH removed)
Unit
Description
Combination meter
Controls the information display according to the signal received from each unit.
Fuel level sensor unit and fuel
pump (fuel level sensor)
.
ECM
Transmits the following signals to the combination meter via CAN communication line.
• Engine speed signal
• Fuel consumption monitor signal
• Loose fuel cap signal
ABS actuator and electric unit
(control unit)
Transmits the vehicle speed signal to the combination meter via CAN communication line.
BCM
Transmits signals provided by various units to the combination meter via CAN communication line.
Washer fluid level switch
Transmits the washer fluid level signal to the combination meter.
Parking brake switch
.
Door switch
Transmits the door switch signals to BCM.
Trunk lamp switch and trunk
release solenoid
Transmits the trunk switch signal to BCM.
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