2008 NISSAN TEANA engine coolant

MWI
METER SYSTEM
MWI-7
< FUNCTION DIAGNOSIS >
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System Description Signal source
Meter/gaugeSpeedometer Receives vehicle speed signal and indicates vehicle speed.ABS actuator and elec-
tric unit (control unit)
Tachometer Receives engine speed signal and indicates engine speed. ECM
Fuel gauge Receives fuel level sensor signal and indicates fuel level. Fuel level sensor unit
Engine coolant tem-
perature gaugeReceives engine coolant temperature signal and indicates coolant
temperature.ECM
Warning lamp/
indicator lampOil pressure warning
lampReceives oil pressure warning lamp signal and illuminates warning
lamp.IPDM E/R
Master warning Illuminates according to warning output on information display. —
Information
displayDoor open warning Receives door switch signals and displays warning. BCM
Trunk open warning Receives trunk switch signals and displays warning. BCM
Parking brake re-
lease warningReceives parking brake switch signal and vehicle speed signal and
displays warnings.Parking brake switch
ABS actuator and elec-
tric unit (control unit)
Low fuel warningReceives fuel gauge signal and displays warning if fuel level de-
creases to 11 (2-2/5 Imp gal) or less.Fuel level sensor unit
Low outside tempera-
ture warningMonitors ambient sensor signal and displays warning if ambient
temperature decreases to 3°C (37°F) or less. (If enabled)Ambient sensor
Instantaneous fuel
consumptionCalculates instantaneous fuel consumption based on received ve-
hicle speed signals and fuel consumption monitor signal and dis-
plays it.ECM
ABS actuator and elec-
tric unit (control unit)
Average fuel con-
sumptionCalculates average fuel consumption in a reset-to-reset interval
based on received vehicle speed signals and fuel consumption
monitor signal and displays it.ECM
ABS actuator and elec-
tric unit (control unit)
Average vehicle
speedCalculates average vehicle speed in a reset-to-reset interval based
on received vehicle speed signals and displays it.ABS actuator and elec-
tric unit (control unit)
Travel time Displays accumulated key switch ON time from reset to reset. —
Travel distanceCalculates accumulated travel distance in a reset-to-reset interval
based on received vehicle speed signals and displays it.ABS actuator and elec-
tric unit (control unit)
Possible driving dis-
tanceCalculates possible driving distance based on received fuel con-
sumption monitor signal, vehicle speed signals and fuel level sen-
sor signal and displays it.ABS actuator and elec-
tric unit (control unit)
ECM
Fuel level sensor unit
Ambient air tempera-
tureCorrects ambient air temperature value based on received ambient
sensor signals and displays it.Ambient sensor

MWI-10
< FUNCTION DIAGNOSIS >
METER SYSTEM
METER SYSTEM : Component Description
INFOID:0000000003792510
SPEEDOMETER
SPEEDOMETER : System DiagramINFOID:0000000003792511
SPEEDOMETER : System DescriptionINFOID:0000000003792512
 The ABS actuator and electric unit (control unit) converts the rectangular wave signal provided by the wheel
sensor to a vehicle speed signal and transmits it to the combination meter via CAN communication.
 The combination meter indicates the vehicle speed to the speedometer according to the vehicle speed sig-
nal received via CAN communication.
D. Front bumper (left back) E. Engine room (LH) F. Behind the combination meter
G. Lower left side of rear seat
Unit Description
Combination meterControls the following with the signals received from each unit via CAN communication and the sig-
nals from switches and sensors.
 Speedometer  Tachometer
 Engine coolant temperature gauge  Fuel gauge
 Warning lamps  Indicator lamps
 Information display
IPDM E/RIPDM E/R reads the ON/OFF signals of the oil pressure switch and transmits the oil pressure switch
signal to the combination meter via BCM with CAN communication line.
Fuel level sensor unit Refer to MWI-45, "
Description".
Oil pressure switch Refer to MWI-50, "
Description".
ECMTransmits the following signals to the combination meter with CAN communication line.
 Engine speed signal  Engine coolant temperature signal
 Fuel consumption monitor signal
ABS actuator and electric unit
(control unit)Transmits the vehicle speed signal to the combination meter with CAN communication line.
BCM Transmits signals provided by various units to the combination meter with CAN communication line.
Control device Transmits the sport mode switch signal to the combination meter.
TCM Transmits the shift position signal to the combination meter with CAN communication line.
Meter control switch Refer to MWI-48, "
Description".
Brake fluid level switch Transmits the brake fluid level switch signal to the combination meter.
Parking brake switch Refer to MWI-52, "
Description".
JPNIA1012GB

MWI-14
< FUNCTION DIAGNOSIS >
METER SYSTEM
TACHOMETER : Component Description
INFOID:0000000003792518
ENGINE COOLANT TEMPERATURE GAUGE
ENGINE COOLANT TEMPERATURE GAUGE : System DiagramINFOID:0000000003792519
ENGINE COOLANT TEMPERATURE GAUGE : System DescriptionINFOID:0000000003792520
 ECM reads the engine coolant temperature signal from the engine coolant temperature sensor and transmits
the signal to the combination meter via CAN communication.
 The combination meter indicates the engine coolant temperature to the water temperature gauge according
to the engine coolant temperature signal received via CAN communication.
D. Front bumper (left back) E. Engine room (LH) F. Behind the combination meter
G. Lower left side of rear seat
Unit Description
Combination meterIndicates the engine speed to the tachometer according to the engine speed signal received from
ECM via CAN communication.
ECM Transmits the engine speed signal to the combination meter with CAN communication line.
JPNIA1014GB

MWI
METER SYSTEM
MWI-15
< FUNCTION DIAGNOSIS >
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ENGINE COOLANT TEMPERATURE GAUGE : Component Parts Location
INFOID:0000000003879301
1. ABS actuator and electric unit (con-
trol unit)2. ECM 3. TCM
4. Oil pressure switch 5. Ambient sensor 6. IPDM E/R
7. BCM 8. Combination meter 9. Fuel level sensor unit and fuel pump
JPNIA1025ZZ

MWI-16
< FUNCTION DIAGNOSIS >
METER SYSTEM
ENGINE COOLANT TEMPERATURE GAUGE : Component Description
INFOID:0000000003792522
FUEL GAUGE
FUEL GAUGE : System DiagramINFOID:0000000003792523
FUEL GAUGE : System DescriptionINFOID:0000000003792524
CONTROL OUTLINE
The combination meter reads the fuel level sensor signal from the fuel level sensor unit and indicates the fuel
level to the fuel gauge.
REFUEL CONTROL
The combination meter accelerates the fuel gauge segment if the all conditions listed below are met, or the
ignition switch is ON from OFF.
 Ignition switch is ON position.
 The vehicle is not moving.
 The fuel level change by 15 (3 - 1/4 lmp gal) or more.
A. Engine room (LH) B. Engine room (LH) C. Engine front side
D. Front bumper (left back) E. Engine room (LH) F. Behind the combination meter
G. Lower left side of rear seat
Unit Description
Combination meterIndicates the engine coolant temperature to the water temperature gauge according to the engine
coolant temperature signal received from ECM via CAN communication.
ECM Transmits the engine coolant temperature signal to the combination meter via CAN communication.
JPNIA0983GB

MWI-34
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (METER)
W TEMP METER
[°C] XValue of engine coolant temperature signal is received from ECM via CAN com-
munication.
NOTE:
215 is displayed when the malfunction signal is input.
ABS W/L
[On/Off]Status of ABS warning lamp detected from ABS warning lamp signal is received
from ABS actuator and electric unit (control unit) via CAN communication.
VDC/TCS IND
[On/Off]Status of VDC OFF indicator lamp detected from VDC OFF indicator lamp signal
is received from ABS actuator and electric unit (control unit) via CAN communica-
tion.
SLIP IND
[On/Off]Status of SLIP indicator lamp detected from slip indicator lamp signal received
from ABS actuator and electric unit (control unit) via CAN communication.
BRAKE W/L
[On/Off]Status of brake warning lamp detected from brake warning lamp signal is received
from ABS actuator and electric unit (control unit) via CAN communication.
NOTE:
Displays “Off” if the brake warning lamp is illuminated when the valve check starts,
the parking brake switch is turned ON or the brake fluid level switch is turned ON.
DOOR W/L
[On/Off]Status of door warning detected from door switch signal received from BCM via
CAN communication.
TRUNK/GLAS-H
[On/Off]Status of trunk warning detected from trunk switch signal received from BCM via
CAN communication.
HI-BEAM IND
[On/Off]Status of high beam indicator lamp detected from high beam request signal is re-
ceived from BCM via CAN communication.
TURN IND
[On/Off]Status of turn indicator lamp detected from turn indicator signal is received from
BCM via CAN communication.
FR FOG IND
[On/Off]Status of front fog light indicator lamp detected from front fog light request signal
is received from BCM via CAN communication.
RR FOG IND
[On/Off]Status of rear fog light indicator lamp detected from rear fog light request signal is
received from BCM via CAN communication.
LIGHT IND
[On/Off]Status of light indicator lamp detected from position light request signal is received
from BCM via CAN communication.
OIL W/L
[On/Off]Status of oil pressure warning lamp detected from oil pressure switch signal is re-
ceived from BCM via CAN communication.
MIL
[On/Off] Status of malfunction indicator lamp detected from malfunctioning indicator lamp
signal is received from ECM via CAN communication.
CRUISE IND
[On/Off]Status of CRUISE indicator detected from ASCD status signal is received from
ECM via CAN communication.
SPORT IND
[On/Off]Status of SPORT indicator detected from sport mode switch signal is received
from control device.
4WD W/L
[On/Off]This item is displayed, but cannot be monitored.
4WD LOCK IND
[On/Off]This item is displayed, but cannot be monitored.
FUEL W/L
[On/Off]Low-fuel warning lamp status detected by the identified fuel level.
WASHER W/L
[On/Off]This item is displayed, but cannot be monitored.
KEY G/Y W/L
[On/Off]Status of key warning lamp (G/Y) detected from key warning signal is received
from BCM via CAN communication.
AFS OFF IND
[On/Off]This item is displayed, but cannot be monitored.
LCD
[B&P N, B&P I, ID NG, ROTAT, SFT
P, INSRT, BATT, NO KY,OUTKY, LK
WN]Displays status of Intelligent Key system warning detected from meter display sig-
nal is received from BCM via CAN communication. Display item [Unit]MAIN
SIGNALSDescription

MWI
B2268 WATER TEMP
MWI-41
< COMPONENT DIAGNOSIS >
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B2268 WATER TEMP
DescriptionINFOID:0000000003792564
The engine coolant temperature signal is transmitted from ECM to the combination meter via CAN communi-
cation.
DTC LogicINFOID:0000000003792565
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000003792566
1.PERFORM SELF-DIAGNOSIS OF ECM
Perform “Self Diagnosis Result” of ECM, and repair or replace malfunctioning parts.
>> Refer to EC-113, "
CONSULT-III Function".
DTCDisplay contents of
CONSULT-IIIDiagnostic item is detected when ... Probable malfunction location
B2268 WATER TEMPECM continuously transmits abnormal engine
coolant temperature signals for 60 seconds or
more  Engine coolant temperature sensor
ECM

MWI
COMBINATION METER
MWI-53
< ECU DIAGNOSIS >
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ECU DIAGNOSIS
COMBINATION METER
Reference ValueINFOID:0000000003792588
VALUES ON THE DIAGNOSIS TOOL
Monitor Item Condition Value/Status
SPEED METER
[km/h]Ignition switch
ONWhile drivingEquivalent to speedometer reading
NOTE:
655.35 is displayed when the malfunc-
tion signal is received
SPEED OUTPUT
[km/h]Ignition switch
ONWhile drivingEquivalent to speedometer reading
NOTE:
655.35 is displayed when the malfunc-
tion signal is received
ODO OUTPUT
[km/h or mph]Ignition switch
ON—Equivalent to odometer reading in
combination meter
TACHO METER
[rpm]Ignition switch
ONWhile drivingEquivalent to tachometer reading
NOTE:
8191.875 is displayed when the mal-
function signal is received
FUEL METER
[lit]Ignition switch
ON— Values according to fuel level
W TEMP METER
[°C]Ignition switch
ON—Values according to engine coolant
temperature
NOTE:
215 is displayed when the malfunction
signal is input
ABS W/LIgnition switch
ONABS warning lamp ON On
ABS warning lamp OFF Off
VDC/TCS INDIgnition switch
ONVDC OFF indicator lamp ON On
VDC OFF indicator lamp OFF Off
SLIP INDIgnition switch
ONSLIP Indicator lamp ON On
SLIP indicator lamp OFF Off
BRAKE W/LIgnition switch
ONBrake warning lamp ON On
Brake warning lamp OFF Off
DOOR W/LIgnition switch
ONDoor warning ON On
Door warning OFF Off
TRUNK/GLAS-HIgnition switch
ONTrunk warning ON On
Trunk warning OFF Off
HI-BEAM INDIgnition switch
ONHigh-beam indicator lamp ON On
High-beam indicator lamp OFF Off
TURN INDIgnition switch
ONTurn signal indicator lamp ON On
Turn signal indicator lamp OFF Off
FR FOG INDIgnition switch
ONFront fog light indicator lamp ON On
Front fog light indicator lamp OFF Off
RR FOG INDIgnition switch
ONRear fog light indicator lamp ON On
Rear fog light indicator lamp OFF Off
LIGHT IND
Ignition switch
ONTail lamp indicator lamp ON On
Tail lamp indicator lamp OFF Off