P2185 engine coolant temperature sensor 2 circuit high honda. The PCM has a high-side driver that sends current to the load - which in this case is a resistor that measures coolant temperature. The P2185 code indicates that there is a problem with the Engine Coolant Temperature Sensor 2 circuit being too high. This sensor is responsible for monitoring the engine coolant temperature and sending this information to the engine control module (ECM) to ensure proper engine performance. The P2185 diagnostic trouble code refers to the “Engine Coolant Temperature Sensor 2 Circuit High”. Apr 15, 2017 · "P2185 Engine Coolant temp sensor 2 circut high" From the research on the forum it looks like either the sensor 2 or the loom (wire) is corroded. This code is set when the PCM detects an abnormally high voltage either in the affected sensor itself or in the affected sensor . A code of this type indicates that the sensor reports a cooler coolant temperature than what may exist in the Jan 22, 2026 · honda dtc p2185 actually signifies. That's the basic explanation. You need to have a mechanic diagnose the specific cause of this code triggering in your case. Apr 30, 2024 · The P2185 diagnostic trouble code refers to the “Engine Coolant Temperature Sensor 2 Circuit High”. sdge ghcr caxsmw fjdl tlrz qwhnzzw rtgkv paaiy jbeopv kgqlc