We are ready to test. We have the computer plugged in, the relays plugged in here. We have our OBD2 gauge Wi-Fi adapter here. And it might get kind of confusing on a video, but I'm going to try and make it as simple to understand as possible. We have our battery connection right here, the red. So I have that going to this little junction area. So right here we've got the fan relay and our battery connection. Those come together right here and then we've got another thick wire going to a little battery pack for my cordless drill or ratchet. It's a 12 volt cordless drill. If you're going to replicate this, be very certain you are using a 12 volt system. It's a little. This is a Milwaukee M12 lithium battery. And make sure you understand what is what positive and negative if you're going to do this. Okay. And that's our battery connection. All right. And then remember here's the engine grommet that goes to the left here. We follow it. It tease right here. And this was our ignition on setup right here. So this ignition on, I just peeled away some of the insulation and I'm going to touch it right there. And it's going to act as if I turned on the key. So that thing's like our VSS sensor will trigger. It's like our fuel pump will trigger since we have TESMO connected and our fans relay will trigger. Now emulating or simulating the load with a little test light. Okay. Let me slow down here. First let's take a look at the fan relay. Fan relay or I'm sorry, the fuel pump relay. The fuel pump relay has this black wire that from the grommet here came to the left. This is from the fan or the fuel pump relay. See we got fuel pump there. This guy just has a little alligator clip that I have connects to this little test light. This test light connects to a ground. Now I'm lucky enough that I pulled this harness for a client that didn't have a harness. So this is start to finish essentially. I was able to plug in the engine connectors into the actual engine harness which contains the major ground. What you have to do is just find the pin on here if you want to replicate this test scenario and hook your negative up to that connector or wire in there. And from the ground we go back to the battery. That completes the cycle. So let's test the fuel pump real quick. So we're going to come back. Oh, I need to connect this. It's going to start hearing the clicks for the fuel pump relay. Hear that? Clicks. Let's go back over here. Take a look at our test light. Yep. Cycling on and off. So that would be the fuel pump cycling on and off. So the ignition on is connected to the battery. Yeah, we can test our VSS and see if it's operating. So there's a little chunk of metal right here and there's the LED on the VSS. We pass it by the metal and it's going to trigger on. So the SS looks good. We'll come over here and the Wi-Fi adapter is lighting up. So we're good. If we disconnect ignition on, it should turn off. There we go. It's off. So now the only other thing we're going to test is the fans. And I heard that relay clicking as well. So let's connect our test light up to the fan connection. It's this big thick black and red cable for wire that goes all the way around to the fan relay. So we're going to watch this test lamp when I connect ignition on. There it goes. So it stays on and clicks off and that's just going to be a cycle just like that. So the fan relay is working. So that kind of wraps up the test scenario. What I'm going to do now in the next episode, we're going to take a look at wrapping the harness. So actually putting the wire looming onto the harness itself. So stay tuned for that.