The code indicates that the voltage signal from the second engine coolant temperature sensor is outside the expected range or performance.
The sensor can develop internal faults that cause it to send incorrect resistance or voltage values to the PCM.
Chafed, broken, or corroded wires and connectors in the sensor circuit can interrupt or distort the signal.
Moisture and oxidation at the connector can increase resistance and cause intermittent readings.
A rare internal failure in the PCM's sensor input circuitry can cause the code, typically after other causes have been ruled out.
If the engine runs hotter than normal, the sensor may be exposed to conditions that accelerate drift and trigger the code.
Usually not; the code is most often caused by a faulty sensor, wiring, or connector, and PCM replacement should only be considered after those have been verified.
Driving is possible for a short time, but the engine may overheat or run poorly, so the issue should be addressed promptly.
No; the thermostat controls coolant flow, while P2182 pertains specifically to the sensor's electrical circuit.
Yes; after fixing the underlying issue, clear the code with a scan tool or by disconnecting the battery briefly.