Well guys, it's a bit more complicated as always with our cars.
There exist 2 different mirror solutions:
- Heated and anti glare LIN bus foldable mirrors
- Heated Non-LIN bus mirrors
Ugh, what is a LIN bus? Well, that's a single wire data bus to transmit data frames from one modul to another. The sender is the Junction Box Electronics JBE, the receiver is an electronic modul placed INTO the mirror housing.
Both types of mirror heaters are supported by the junction box electronics and operate depending on the vehicle's front temperature sensor.
There is no way to manually heat the mirrors. This is JBE magic!
- LIN bus mirrors are connected by a 6-pole plug in the window triangle, which only keeps 3 wires: +12V, GND, LIN.
- NON-LIN bus mirrors are connected by the same 6-pole plug in the window triangle, which keeps 5 wires(!) from the JBE.
The installed mirror version can be checked by pulling off the mirror triangle with the tiny speaker on the inner side of the doors, unplug the 6-pole connector and count the number of pins comming in from the mirror! Quite simple, no tool is required.
This autumn I had a problem with foggy mirror glasses in a chain of several 3km tunnels in the north of Italy. No way to get the mirror heating to do their job, I had paid for! That was the initial kickup for another project of mine:
SHiIT: Mirror (German:
Spiegel)
Heating
in
Italian
Tunnels.
SHiIT has been successfully finished some days ago with some interesting findings on the mirror heatings.
Just have a look:
In German: https://www.zroadster.com/forum/threads/projekt-spiegelheizung-in-italienischen-tunneln-shiit-erfolgreich-abgeschlossen.149170/
or Translated by Google