had Auto Zone analyze. Was told throttle position sensor circuit low input was the problem. They (Auto Zone) reset the circuit. Engine light is now off. Through it all, Jeep is running fine. What‘s up with all this??Jay
I'd say the most common reason is exhaust, but it could be almost anything. That is a catchall light that will come on if the computer detects some sort of problem. Take the car to a local parts store - most (like autozone) will scan your code for free and tell you what part you need.
It could have been a slight variation in the voltage that set a code in the computer. Sometimes with all accessories on (lights, heater on high, windshield wipers, stereo) the alternator output is almost to the max. When you hit the brakes, and the brake lights draw current too, you can end up with a momentary low voltage in your system. You will not notice it, but it may cause a fault code in the TPS. If the problem does not reoccur, I would not worry about it.
i have a jeep thats the same year as yours and that happend to me. the light went away but when i took it in to the dealer cuz i still had a factory warranty they replaced it because it was still faulty. its not going to change the way your engine runs too much but over time if you dont get it fixed it will start running like crap. so id get it fixed so you dont have to worry about anything.
