P2383 indicates that the exhaust gas recirculation (EGR) temperature/position sensor labeled "D" is reporting a value outside the expected range, or its response does not match what the powertrain control module expects for the current engine operating conditions.
The sensor itself can drift, stick, or fail internally, producing an out-of-range or implausibly slow signal; this is the single most common cause for this code.
Open, shorted, corroded, or poorly pinned wiring and connectors between the EGR sensor and the control module can distort or interrupt the sensor signal.
Heavy soot or carbon deposits can insulate an EGR temperature sensor or restrict flow, causing readings that do not match actual EGR activity.
A stuck, clogged, or leaking EGR valve can create temperature or pressure conditions that make sensor D readings appear out of range even when the sensor is good.
A rare PCM/ECM fault or outdated calibration can misinterpret a valid sensor signal; this should only be considered after the sensor, wiring, and EGR hardware have been ruled out.
Short trips are usually possible, but the EGR system may not regulate emissions properly, and prolonged driving can increase combustion temperatures and the risk of related damage.
Not without testing. The sensor itself is the most likely failed part, but wiring and carbon buildup are also common, so verify the circuit and physical condition before replacing parts.
No. A PCM/ECM failure is uncommon for this code; most cases are caused by the sensor, wiring, or EGR hardware. Replacing the computer first is usually the wrong approach.
It can, especially when carbon deposits are affecting the sensor reading or EGR flow. If the sensor is internally failed, cleaning alone will not clear the code.