2002 · FUEL [13] · страница 3 из 68 · Открыть оригинал PDF ↗

SELF-DIAGNOSIS FUNCTION

DWhen an abnormality is detected in any of the sensors or actuators, the engine warning lamp illuminates
towarnthedriver.

DWhenanabnormalityisdetectedinanyofthesensorsoractuators,adiagnosiscodenumber
correspondingtotheproblemwhichoccurredisoutput.

DTheRAMdatarelatingtothesensorsandactuatorswhichisstoredintheengine-ECUcanberead
usingtheMUT-II.Inaddition,theactuatorscanbeforce-drivenundercertainconditions.

OTHERCONTROLFUNCTIONS

1.PowerSupplyControl

WhentheignitionswitchisturnedtoON,therelayturnsonandpowerissuppliedtocomponents
suchasthetimingcontrolsolenoidvalve.

2.IntakeAirThrottleControl
Whentheengine-ECUdetectsanabnormalityinanyofthesensorsoractuators,thethrottlevalve
ishalfopenedtorestricttheamountofintakeairinordertopreventthevehiclefromrunningaway.

3.A/CRelayControl
TurnsthecompressorclutchoftheA/CONandOFF

4.CondenserFanMotorRelayControl
ControlsthecondenserfanmotorrelaybasedontheA/Cswitch,enginecoolanttemperatureand
vehiclespeedinputsignals.

5.IntercoolerFanMotorRelayControl
Controlstheintercoolerfanmotorrelaybasedontheboostairtemperatureandvehiclespeedinput
signals.

6.GlowControl
RefertoGROUP16.

7.EGRControl
RefertoGROUP17.

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