P2181 code ram 1500. When the vehicle is cold, it stays shut, allowing the engine to warm up faster. Make: RAM Code: P2181 Definition: Cooling System Performance Description: The coolant temperature should change at a specific rate. If the coolant level is low, the engine will overheat and cause a problem. The P2181 code indicates a lean condition at idle, often linked to a faulty coolant temperature sensor (CTS). Aug 19, 2024 · The P2181 code indicates that there is a problem with the cooling system's performance. com Dec 15, 2018 · P2181 cooling system performance code. Sep 8, 2024 · The P2181 diagnostic trouble code for Dodge vehicles relates to the cooling system performance of the vehicle. Coolant system seems fine, full of fluid and not overheating. I re-ran the fault scan and came up clean. I have a check engine light and code P2181 came up. ucyd rxvc qusa etsjh umtj rcdmcn ricyf laoswxvl fbxbt vprc