PDA

View Full Version : Electrical fix LMS headlight switch problem



ericvie
03-22-2022, 07:44 PM
small modification on vin 4616,
I was tired of this ultra capricious headlight switch, even after changing to a new model, the problem was always the same, as soon as there is heating or even having modified the relay or lubricated, nothing nor done in the long term.
Nothing more annoying than not being able to put the fires on or turn them off.
I therefore removed the mechanical blocking of the switch and I made a small electronic module based on Arduino which is the same birch as the 2 original positions of the switch.
and finally no more problems

view of Arduino module
68221

metal rod to remove to remove the mechanical system of the switch
68222
68223

Module ready to be installed
68224

The terminals that will be connected to the switch
68225

replacement of the old switch plug
68226
68227
68228

connection at the back of the headlight switch
68229

video demostration
https://www.youtube.com/watch?v=iSFgm-TlG9Y