IC Regulator Circuit (Alternator Circuit)

IC REGULATOR CIRCUIT (ALTERNATOR CIRCUIT)

CIRCUIT DESCRIPTION
When the engine is stopped, the alternator does not generate electricity, so the voltage at ECU terminal REG is low. While the engine is running with the alternator generating electricity, the voltage at terminal REG becomes high. Thus the ECU detects the alternator generating condition and controls vehicle height only when the alternator is in generating condition (except for Ignition Switch OFF Control).





DIAGNOSTIC CHART





WIRING DIAGRAM





WIRING ROUTING

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INSPECTION PROCEDURE