Without Immobilizer

ECM Power Source Circuit / Without Immobilizer

CIRCUIT DESCRIPTION

When the ignition switch is turned ON, battery positive voltage is applied to the coil, closing the contacts of the EFI main relay (Marking: EFI) and supplying power to terminal +B of the ECM.

Wiring Diagram:

Steps 1 - 4:

Steps 5 - 7:

INSPECTION PROCEDURE