E53,How to read an Electrical diagram

[Clavurion]

Originally Posted by Bmwe5320023.0

I see these everywhere.
Not sure if the bar is a fuse?

A resistor and transistor connected to module (board) internal ground. A rough representation of a load and signal transfer.

[80stech]

The bar could be anything. The transistor and bar symbol mean there are some electronics and give rough idea of what's going on.

[Bmwe5320023.0]

I'm having a hard tire figuring out how the heated steering wheel works.
Is there a way to program it to heat up to higher temperature ?

[andrewwynn]

The only option I've ever heard of regarding coding it is some cars you can have it come on below a certain ambient temp. I've never seen a temp option such add the seats have. Certain cars you can code the temp levels of the three stay heat options. I don't think the wheel even has a thermistor to keep track

[Bmwe5320023.0]

I'm not a pro with diagrams but was wondering if there's a way to replace the modulated signal to the heating element with a constant power supply when pressing the button

[80stech]

The steering wheel doesn't seem as warm in warmer weather but it's fine when it is cold. This should probably be in it's own thread.