MIL Light stays on
I have a 2011 Grand Cherokee Overland with the 5.7L Hemi. Today when I went out to the store, the MIL (Malfunction Indicator Light, looks like an outline picture of the engine) stayed on the entire trip. It usually comes on at startup and goes out along with the other idiot lights. I checked for a loose gas cap and also checked for any loose wires under the hood for the air sensor on the intake and that sort of thing. According to the owner's manual, another possible cause is poor quality fuel, but we filled it up from almost empty 3 weeks ago, and it's now only down to half a tank, so I would think that if it was bad gas that it would have happened a lot sooner than 3 weeks later. The light stays on whenever the engine is running now. I searched the forums, and there's a couple of threads that talk about the Off-On-Off-On-Off-On ignition key sequence to get the EVIC to display a more meaningful code, but that sequence must be for older models, as it doesn't cause any codes to appear. There are no messages in the menu system either. Does anyone have any ideas what might be causing the light to stay on, or what the proper sequence is to get the EVIC to display the error codes on my model? Thanks in advance.
Sean in PA
2011 Jeep Grand Cherokee Overland
5.7 Liter Hemi V-8
Adaptive Cruise & Blind Spot Monitoring