What does bmw p1112 sensor do?

Question

Please can you tell me what this sensor p1112 in bmw does what is his function
Because i have that code p1112 when i looked sensor was unpluged and the vent was spining
Than I pluged it on his place and the vent stoped
So now is unpluged because i m afraid that something happens
3 days ago I changed expanzion lot..thermostat
Thank you

Answer 1

Hi there

This code is for the radiator outlet temp sensor. This should be plugged in as it reads the output temp of the radiator. Being unplugged is going to cause the code obviously, but there isn't any reason for it to be unplugged. If you plug it in, clear the code and the same code comes back, then replace the sensor.