Toyota 4afe Ecu Pinout -

The following tables provide a breakdown of the common pin assignments for the 4AFE ECU:

A very specific and technical topic!

| Pin # | Description | | --- | --- | | 20 | Diagnostic Communication (EFI) | | 21 | Serial Communication (SC) | | 22 | Check Engine Light (CEL) | toyota 4afe ecu pinout