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I’m trying to code my BMW F20 LCI 118i (halogen headlights with 4 DRL LED bars) so that the DRL stays on together with the low beams.
Right now, as soon as I switch on the low beams, the DRL turns completely off — while I’d like it to stay on (either full brightness or dimmed).
I used bimmercode expertmode to change settings in the FEM_BODY → MAPPING_TAGFAHRL_V_L / R:
DEPENDENCY_FUNC: 0x00 DEPENDENCY_PWM: 0x00
DIMMED: 0x00
DISABLE_OUTPUT: 0x00
FIXED_PWM: 0x01
FUNCTION: 0x04
IGR_RELEVANT: 0x00
OFF_MODE: 0x00
OUTPUT: 0x03
PART_OF_WL: 0x00
PRIORITY: 0x01
PWM_LEVEL_1: 0x64
PWM_LEVEL_2: 0x64
PWM_LEVEL_3: 0x00
PWM_LEVEL_4: 0x00
PWM_LEVEL_5: 0x00
VOLTAGE_PEAK: 0x00
I’ve tried adjusting DEPENDENCY_PWM and PWM_LEVEL_2 (0x0C / 0x64) but no luck — the DRL still shuts off completely when the low beam is active.
From what I understand, the TAGFAHRL (DRL) and STANDL (parking light) functions might be linked, since the same 4 LED bars act as both DRL (bright) and parking light (dim).
But I can’t figure out which parameter or mapping allows the DRL output to remain active when the low beam
turns on. Picture of white car is from a youtuber in germany which has this coded and werking. However i cant figure it out. Thanks in advance.

[mahde232]

joining the thread, would like to have this too