This has been happening for a long time, and i have pretty much ignored it but now that its getting colder, its pissing me off more and more.
Situation: Mostly at highway speeds this will happen. The MIL chime will go and the MIL will pop on. I check codes (with flashpaq) , there's none other than TPMS code which has been disabled and TPMS shouldn't set MIL anyway.. The light stays on for a day or two (unless I reset it with my flashpaq) and then it goes out until the next highway run. One of the fucked up things I notice is, that I routinely drive a 40 mile route on the freeway to the gym. Sometimes, the light will not come on during the ride there, but when I drive home from there after the the jeep has cooled for 2-3 hours, it ALWAYS comes on and usually in the exact same spot on the freeway, wtf? Last weekend, I drove to Maine 250 miles at 70 mph and no light, the next morning it came on after 10 minutes..
So, no codes and the jeep runs and drives fine but here is the thing that pisses me off about this little problem.. If the MIL is on when I shut the jeep off, the factory remote starter will not work. It will start, run for 15 seconds and die until it is started with a key. When I do this, it throws a remote starter code..
So I took it to the dealer, explained my situation.. They diagnosed it and found the remote starter code. They replaced the remote starter unit in the jeep and flashed my keyfobs, No fix... I think maybe if the MIL is on, there's a safety feature that disables the remote starter.. The problem is documented with the dealership, but I just don't feel like playing cat and mouse with them, driving it up there, dropping it off for the day and having them find nothing wrong..rinse, repeat..
IDGAF about the light (ok, it pisses me off a little), but I want the remote starter to work. I am sure that whatever causes this is something minor, but I am at a loss.. i have checked every connection that is readily accessible.
At one point last winter I was popping fuses on the driver side light circuit, turned out to be the factory wiring running to the side marker light on the driver side fender was pinched at the factory and it chafed through causing a short, that was fun to figure out, it wasn't visible and the fender had to come off to find the problem. I thought this might be the root cause of the above problem, but no..
I highly doubt there's anyone who has had a similar problem, I have googled it, searched it... nothing.. Just throwing it out there to see if anyone has ideas