another w204 backup camera help request - Mercedes-Benz Forum
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post #1 of 1 Old 01-12-2019, 06:09 PM Thread Starter
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another w204 backup camera help request

tons of information about doing this... seemed pretty straight forward.

1. installed camera to trunk lid
2. ran line to COMAND unit
3. removed iPod video FAKRA, installed RCA/FAKRA adapter to camera line
4. enabled SRVC in engineering menu
5. performed system reset

seems like it should work, but it doesn't. when i place the shifter in R, i get the backup view with warning and guidelines, but the display is black.

what i've tried:
in, setting AUX VIDEO to both ON and OFF, no change
disabling/re-enabling SRVC, no change
pulling extension cord and 19" tv out to the trunk, connecting TV directly to camera... signal is good.

i've never tried the AUX VIDEO connection from the glovebox, but i'm operating under the assumption that the system is capable of displaying AUX input.
i haven't tried a continuity test on the RCA video run, though i'm very sure that the wiring isn't compromised.
*it's possible although unlikely that the inline RCA/FAKRA adapter connection came apart, but i doubt it
i'm leaning more toward a bad RCA/FAKRA adapter

it's cold and dark outside so i'm done working for the day, but if anybody has run into this, i'd like to start tomorrow with a plan of attack.

reverendalc is offline  
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