Hmmm.. first time I checked into this. So my manual says you need auto lights for coming home/leaving home feature? Anyway to circumvent this with OBD11?
I tried and couldn't get it to work automatically with my aftermarket sensor. I have DRLs as coming home lights set to trigger manually. Leaving home won't work at all.
I saw a post on a different forum where Don said that setting the trigger to automatic will cause the CH/LH function to always trigger regardless of light condition, but that didn't happen to me. I wonder, though, if I'd get different results if I don't use the aftermarket sensor. I can try that out.
Something else I tried: there's a Long Coding entry that's along the lines of a light sensor being installed. I set mine to Installed, and that just threw a fault on the dash, so I set it back to Not Installed. I was hoping that I could trick the car into always triggering CH/LH.
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You can set CH to work without auto lights but not LH. LH absolutely requires the OEM light sensor plugged into the BCM, it will not work with an aftermarket one.
I set CH to work manually on my GSW S (no auto lights) using coding:
Central Electrics: Adaptations: Aussenlicht uebergreifend: Einschaltereignis: change to driver door (this makes CH come on when you open your door after flashing your high beams)
Central Electrics: Adaptations: Aussenlicht uebergreifend: Menuesteuerung: Coming Home Werkseinstellung: change to active (this puts a menu in infotainment with a time slider 0-30 seconds)
Central Electrics: Adaptations: Aussenlicht uebergreifend: Verbaustatus: change to manual (this tells the system it will only activate manually, when you flash your high beams before exiting the car. If you had the OEM light sensor, you could set this to auto)
You can then also go into any leuchte channel you want and have any additional lights come on by adding the lichtfunktion for cominghome/leavinghome.