I posted a separate thread thinking it’s a separate issue but now I realize they correlate. I have an 04 wrangler and the dash lights went out I’ve been trying to diagnose it. Today my Jeep beeped at me but didn’t throw the engine light on. I checked the code it’s 1687. How do I fix this? I believe it’s also the reason my lights won’t turn on behind my dash. Because when I unplug the wires I feed all the engine information the dash lights come on when I plug it in it turns off.