Toyota 4afe Ecu Pinout _verified_ ⇒ <LIMITED>

The 4A-FE ECU outputs legacy flash codes through a diagnostic connector box located under the hood.

Leave unconnected: A/C inputs, P/S switch, NSS (if manual swap – ground or open? Keep open on manual conversion). toyota 4afe ecu pinout

Timing signal output sent from ECU to the Igniter to fire the coil. Ignition Feedback The 4A-FE ECU outputs legacy flash codes through