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A-3 ECM Power and Ground Circuit


CHART A-3 ECM POWER AND GROUND CIRCUIT - MIL DOESN'T LIGHT AT IGNITION SWITCH ON AND ENGINE DOESN'T START THOUGH IT IS CRANKED UP.





CIRCUIT DIAGRAM

CIRCUIT DESCRIPTION
When the ignition switch is turned ON, the main relay turns ON (the contact point closes) and the main power is supplied to ECM.








INSPECTION