Tacoma Extra Cab Limited 4WD V6-3.4L (5VZ-FE) (2000)
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Engine Control Module: Component Tests and General Diagnostics
CIRCUIT DESCRIPTION
When the ignition switch is turned ON, battery positive voltage is applied to coil, closing the contacts of the EFI main relay (Marking: EFI) and
supplying power to terminal +B of the ECM.
WIRING DIAGRAM
