Power Supply/MFI Relay

CIRCUIT DIAGRAM





USING MULTI-USE TESTER

Steps 1-4:

HARNESS INSPECTION

Control Relay Inspection:

CONTROL RELAY INSPECTION



OPERATION

If the ignition "ON" signal is input, ECU flows electricity to the control relay coil to turn on the power supply switch. This circuit supplies power also to the injector, AFS, ISC servo, etc.