can i run the ac if my check engine light is on ?

Hello, the air conditioning system is independent of the engine in and of itself. However, engine performance concerns may prevent the air conditioning system from turning on. So, it's difficult to say if it will work or not, even if you try to use it. It's also possibly a concern if the engine wants to overheat - which could be causing the check engine light. The point is - get the check engine light checked as soon as possible. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops