Thermostat Heater Control Circuit Open

What the p0597 code means. The ecm controls the engine coolant thermostat heater by grounding the control circuit with a solid state device called a driver. What does that mean.

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The driver is equipped with a feedback circuit that is pulled up to a voltage.

Thermostat heater control circuit open.

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 heater element is integrated into the engine coolant thermostat. The p0597 trouble code signifies that a thermostat heater control circuit is open.

The ecm controls the engine coolant thermostat heater by grounding the control circuit with a solid state device called a driver. This is a generic powertrain diagnostic trouble code dtc which means it covers all makes models 1996 newer. We recommend torque pro. The driver is equipped with a feedback circuit that is pulled up to a voltage.

The driver is equipped with a feedback circuit that is pulled up to a voltage. 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. The function of the thermostat is to control the flow of the coolant or temperature of the engine electronically part throttle improves fuel economy and reduces emissions.

The ecm can determine if the control circuit is open shorted to ground or shorted to a voltage by monitoring the feedback voltage. The control circuit is most likely either open or short. What does code p0597 mean. 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 purpose of the heater element is to allow the conventional wax thermostat to open at a lower coolant temperature. Thermostat heater control circuit open. This fault code is stored in the engine control module when the thermostat heater control circuit malfunctions. 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.

However specific troubleshooting steps will vary depending on the vehicle.