These codes points to a bad PCM or you have a engine that is overheating, can I ask if you had the battery disconnected recently? Here is a guide that may help
https://www.2carpros.com/articles/symptoms-of-an-overheating-engine/
P2185 – Engine Coolant Temperature Sensor 2 Circuit High Voltage
P1607 on Chrysler/Dodge commonly points to a PCM internal shutdown timer / power interruption / temperature-related rationality issue, and it can show up after battery disconnection, low voltage, or a PCM power/ground problem.
Also, how is the connector at the second engine coolant temperature sensor, if the connector or wiring is bad it can create this code as well.
Jun 2, 2026 at 2:38 PM