Posts Tagged: P0597

P0597 Engine Coolant Thermostat Heater Control Circuit

July 13, 2017

Fix P0597 trouble code What is a P0597 trouble code? Late model engine use a heated thermostat. A P0597 Engine Coolant Thermostat Heater Control Circuit Trouble code indicates a problem with the thermostat, heater, wiring harness, electrical connector or the thermostat housing itself. Why use a heated thermostat? Car makers routinely install smaller turbocharged engines to lower vehicle weight and improve gas mileage and emissions. These smaller engines often run hotter when the turbo is in operation, but can fail to output enough heat to warm the passenger cabin when … Read More