Thermostat Heater Control Circuit Open

The purpose of the heater element is to allow the conventional wax thermostat to open at a lower coolant temperature.

Thermostat heater control circuit open. What does code p0597 mean. The ecm controls the engine coolant thermostat heater by grounding the control circuit with a solid state device called a driver. The driver is equipped with a feedback circuit that is pulled up to a voltage. The p0597 trouble code signifies that a thermostat heater control circuit is open.

This is a generic powertrain diagnostic trouble code dtc which means it covers all makes models 1996 newer. The ecm controls the engine coolant thermostat heater by grounding the control circuit with a solid state device called a driver. However specific troubleshooting steps will vary depending on the vehicle. Obd ii fault code p0597 is a generic code that is defined as thermostat heater control system circuit open and is set when the pcm powertrain control module detects an open circuit loss of continuity in the heater control circuit of an electrically assisted thermostat also known as a mapped thermostat.

An electronically controlled heater element is integrated into the engine coolant thermostat. Thermostat heater control circuit open. The control circuit is most likely either open or short. If a pcm powertrain control module stores this code it s because the engine s thermostat is experiencing an issue with the control voltage.

The ecm controls the engine coolant thermostat heater by grounding the control circuit with a solid state device called a driver. An electronically controlled thermostat is composed of multiple temperature and load sensors a computer program and a control housing with a built in thermostat. The ecm can determine if the control circuit is open shorted to ground or shorted to a voltage by monitoring the feedback voltage. The driver is equipped with a feedback circuit that is pulled up to a voltage.

What does that mean. This fault code is stored in the engine control module when the thermostat heater control circuit malfunctions. We recommend torque pro. The ecm can determine if the control circuit is open shorted to ground or shorted to a voltage by monitoring the feedback voltage.

The codes p0597 p0598 and p0599 all refer to an electronically controlled engine thermostat.