4s-fe Ecu Pinout [work] May 2026

Toyota 4S-FE engine, part of the S-family, was commonly found in Japanese market vehicles like the Corona, Carina, and Mark II

Communication Pins

Connector C (C1–C13)

ECU Pinout Overview

If you want, I can:

1. Jump C8 (TE1) to C10 (E1).
2. Turn the key to ON (don’t start).
3. Count the flashes on the check engine light (C7).

   However, when things do go wrong (or when you’re wiring in a standalone ECU or a turbo timer), you’ll quickly realize that factory wiring diagrams are chaos. That’s where a good ECU pinout diagram saves the day. 4s-fe ecu pinout