Thermostat Heater Control Circuit Open Bmw Cost

What the p0597 code means.

Thermostat heater control circuit open bmw cost.

The cost to diagnose the p0597 bmw code is 1 0 hour of labor. Some newer engines utilize thermostats that are electronically controlled by the engine control module pcm. The control circuit is most likely either open or short. An electronically controlled thermostat is composed of multiple temperature and load sensors a computer program and a control housing with a built in thermostat.

This is a generic powertrain diagnostic trouble code dtc which means it covers all makes models 1996 newer. Obd ii code p0597 is defined as a thermostat heater control circuit open. The codes p0597 p0598 and p0599 all refer to an electronically controlled engine thermostat. If a pcm powertrain control module stores this code it s because the engine s thermostat is experiencing an issue with the control voltage.

Most auto repairs shops charge between 75 and 150 per hour. The p0597 trouble code signifies that a thermostat heater control circuit is open. However specific troubleshooting steps will vary depending on the vehicle. If the pcm detects an incorrect signal from thermostat the pcm will set code p0597.

The auto repair labor rates vary widely across the country and even within the same city. What does that mean. The ecm controls the engine coolant thermostat heater by grounding the control circuit with a solid state device called a driver. 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 driver is equipped with a feedback circuit that is pulled up to a voltage.