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      04-20-2016, 07:22 PM   #1
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Drives: e90
Join Date: Sep 2009
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Exclamation Retrofit FLA ( High Beam Assist ) -

This is a diagnostic guide for DIY high beam assist (FLA)

Please first read & watch this video:

I spent more than 4.5 hours to install this feature last night and had many problems along the way.
The video is hard to follow and you have to really skip back & forward to figure out how the wires were connected.
There is no pin diagram or anything so it took a lot of work to get it right as again, the video was too fast, too vague.

My debugging guide below:


Problems / Fixes

A. NCS Expert Error when coding FLA: "COAPI-2020 Ecu does not answer"
B. WINKFP error when coding FLA65: "no answer from ECU"
C. INPA - UIF: FLA is missing from hardware list

Reason: Mirror / FLA wiring wrong. Car does not detect FLA
Fix/Possible causes:
A. Wire joins/solders/bridges not making contact properly. Check/repair.
My $10 connectors didn't work so I did the $0 free option.
Stripped the wires, twisted together & electrical taped. Worked.

B. Wiring order is wrong. DIY video is misleading. Green/Orange are in wrong position. Swap them.
If still not working check your other wires. You have made a mistake.

Problem: Vehicle Order (VO) didn't save. $5AC is missing from list when you check again
Reason: VO is stored in multiple ECU. Or you didn't FA_WRITE
Fix: Update your VO in both CAS + FRM + NFRM
Use EXPERTMODE profile
Also execute the FA_WRITE job to each of above

Problem: above is working but: auto high beam doesn't show in cluster
Reason: These ECUs must be reset: CAS, NFRM, KOMBI, FLA
NCS EXPERT (EXPERT PROFILE - to reset to factory settings)
F1+F3=e89 chassis
F6 back
F4 - ECU: Pick the first ECU above
F3 = start coding
(repeat for the other ECU's: NFRM, KOMBI, FLA)

Problem: all above working, no high beam assist option in idrive
NCS Expert code
CAS: CCC_APPL module
from: nicht_aktiv to: aktiv

Now go to idrive - vehicle settings - light - high beam assistant & turn ON.

Problem: How do I use auto high beam?
Press high beam 1 time on stalk. You will see symbol in speedo.
Press one more time to turn highbeam on manually.

You just saved yourself 4.5 hours.

Last edited by fatjoez; 04-21-2016 at 06:23 AM.
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