DTC P2183: Engine Coolant Temperature (ECT) Sensor 2 Range/Performance Problem: General Description

Two engine coolant temperature (ECT) sensors and one intake air temperature (IAT) sensor are used by the engine control module (ECM)/powertrain control module (PCM). When the engine is stopped and enough time has passed, the temperature of the engine will equalize to the ambient temperature. ECT sensor 1 and IAT sensor are compared to ECT sensor 2, and if an inappropriate temperature is read, the ECM/PCM detects a malfunction in the corresponding sensor and stores a DTC.