Simos 33a Pinout Top ((top)) Here

To read or write the Simos 33A on a bench, you need to connect:

Note: In many SIMOS 33A diagrams, the connector containing the power and communication lines (the logic side) is physically positioned on the outer edge (or "top" when viewed from a specific angle), separate from the heavy-current coil/injector pins. simos 33a pinout top

Before trying to communicate with the ECU, you must power it up correctly on the bench. To read or write the Simos 33A on