toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Diagram Information and Instructions|Page 189 > < Diagram Information and Instructions|Page 187
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Main Relay (Computer/Fuel System): Description and Operation

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 the terminals +B of the ECM.

Diagram Information and Instructions|Page 189 > < Diagram Information and Instructions|Page 187