Hello
I am new to the forum.
it's worth to tie the original BMW LED Auxiliary Light on HEXezCan. Will I be able to dim it?
If you by LED Auxilary Light mean the Nano lights such as the ones fitted on the GSA, then the answer is YES.
Intercept the cable harness leading to the lights just after it's split (singel supply, then it is divided into two in a 'Yæ type harness.
If you want to control both lights from a single source you must intercept the wire prior to the 'Y'. If you want to control the lights separate, left and right, intercept after the 'Y' split.
You want to cut the blue/red cable, and leave the others untouched. The red/blue connects to the positive output. You may leave the cut end on the supply side open. Just insulate it.
It is important that you do NOT cut and intercept the brown ground cable, as this will trigger an internal fault message, In order to perform later BMW software updates, all fault codes MUST be cleared first, and this will not happen with the brown ground cable disconnected.
Also, when the AUX lights are switched on/off by the switch located on the left mirror base, this action actually controls the ground connection to the lights, so whatever the ezCan does, there will not be any light unless the handlebar switch is on (and the green light in the TFT is displayed)