GASOLINEVEHICLE-ELECTRICAL
COMPONENTSEngineControlUnit(ECU)
19
ENGINECONTROLUNIT(ECU)
CAUTION
•TheEngineControlUnit(ECU)andThrottleBodyaretobepurchasedasoneunit.Theyarematched
pairswithmatchingserialnumbers.DonotmixanECUwithanotherThrottleBodyofadifferentserial
number.Doingsoviolatesemissionsstandardsandwarranty.
TheECUislocatedintheenginecompartment.
TESTINGTHEENGINECONTROLUNIT
SeeTestProcedure4–EFISystem(ECUandSensors)onpage18-16.
ENGINECONTROLUNITREMOVAL
1.Disconnectbattery.
SeeDisconnectingtheBattery-GasolineVehiclesonpage1-3.
2.RemoveECUmountingplatebolts.
3.Disconnectgrayandblackwireconnectors.
ENGINECONTROLUNITINSTALLATION
WARNING
•TopreventdamagetotheECU,nevermixtheblackandgrayconnectorsthatattachtoit.Theblack
connectoristetheredtotheECUmountingplatetohelppreventaccidentallyinstallingitinthegray
port.
1.MountECUtoplatewithboltsandtightento60in·lb(6.8N·m).
2.InstallgrayconnectortothegrayportontheECU.SeeprecedingWARNING.
3.InstallblackconnectortotheblackportontheECU.
4.Connectthebattery.
2019PrecedentVillager2MaintenanceandServiceManualPage19-17