The ecm controls the engine coolant thermostat heater by grounding the control circuit with a solid state device called a driver.
Thermostat heater control circuit open bmw cost.
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.
Cooling fans may stay on all the time.
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 the pcm detects an incorrect signal from thermostat the pcm will set code p0597.
This is a generic powertrain diagnostic trouble code dtc which means it covers all makes models 1996 newer.
However specific troubleshooting steps will vary depending on the vehicle.
The auto repair labor rates vary widely across the country and even within the same city.
What the p0597 code means.
The p0597 trouble code signifies that a thermostat heater control circuit is open.
Thermostat heater control circuit open.
Some newer engines utilize thermostats that are electronically controlled by the engine control module pcm.
Most auto repairs shops charge between 75 and 150 per hour.
The control circuit is most likely either open or short.
The cost to diagnose the p0597 bmw code is 1 0 hour of labor.
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 driver is equipped with a feedback circuit that is pulled up to a voltage.