Reading Check engine code 2004 Nautique 210

[Fly210N]

I have a 2004. Nautique 210 with an Excalibur 330. From what I understand is that it’s a MEFI 4, but correct me if I’m wrong. I was going to buy a Rinda CodeMate 94008, but then I read on one of the forums that all you need to do is get an led and a paper clip and plug it into the right wire holes on the ECM connector and it will blink the codes at you. Another person said that this could also just be done with a multimeter. I tried using the multimeter. I set it on continuity with beeps setting. Did it with the paper clip and without and getting no beeps at all. Check engine light is staying on. Am I doing something wrong?

[Fly210N]

Figured it out. That was the wrong connector. The chest connector was under the plastic cover of the engine in the back

[Fly210N]

Here’s a picture of where it’s at

[time2ride]

Can you confirm that it worked along with what wires you jumped and where to plug in the test light?