P0599
Powertrain Codes
P0599 - BMW - Thermostat Heater Control Circuit High
Possible Causes
- Open or short thermostat heather control circuit - Poor thermostat heather control circuit connection - Failed Engine Cooling Thermostat
When Detected
The P0598 is triggered when there is an open or short thermostat heather control circuit.
Tech Notes
If there are not coolant system leaks, replaced the thermostat to fix the problem.