Toyota Avalon Service & Repair Manual: Radio Receiver

Removal

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Toyota Avalon Service & Repair Manual > Sfi System: ECM Power Source Circuit
DESCRIPTION When the engine switch is turned on (IG), the battery voltage is applied to the IGSW terminal of the ECM. The output signal from the MREL terminal of the ECM causes a current to flow to the coil of the EFI-MAIN NO. 1 relay, closing the contacts and supplying power to terminals +B and +B2 ...

Toyota Avalon Owners Manual

Toyota Avalon Service & Repair Manual

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