Thermostat Heater Control Circuit Open Bmw Cost

How to repair p0597 bmw code thermostat heater control circuit open.

Thermostat heater control circuit open bmw cost.

Obd ii code p0597 is defined as a thermostat heater control circuit open. The ecm controls the engine coolant thermostat heater by grounding the control circuit with a solid state device called a driver. The ecm can determine if the control circuit is open shorted to ground or shorted to a voltage by monitoring the feedback voltage. 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.

What does that mean. The control circuit is most likely either open or short. 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 p0597 trouble code signifies that a thermostat heater control circuit is 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. Most auto repairs shops charge between 75 and 150 per hour. The driver is equipped with a feedback circuit that is pulled up to a voltage.

The auto repair labor rates vary widely across the country and even within the same city. Cooling fans may stay on all the time. The codes p0597 p0598 and p0599 all refer to an electronically controlled engine thermostat. An electronically controlled thermostat is composed of multiple temperature and load sensors a computer program and a control housing with a built in thermostat.

What the p0597 code means. If the pcm detects an incorrect signal from thermostat the pcm will set code p0597.