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  1. #1
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    Nov 2014
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    Inner trunk light problem.

    So i have changed bulbs, swapped bulb carriers, traced the wiring back to the cabin (no breaks), powered the lamp from a 9v on the tail light housing but to no avail. I have no warning lights.

    Does anyone have another idea?

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    BMS Intake, JB4 Iso Map 7, COBB V2 BMS BEF, CPe Charge-pipe, ETS 5" FMIC, Megan Racing DP, BMS OCC, SS Brake Lines, BMS CDV, MFactory LSD + Solid Diff mounts, 650i Diff cover, Pure Inlet, Fuel-it Stg2 LPFP + Platinum TBI E70, E46 Trans mounts, M3 Control Arms. *550i Clutch and Mfactory SMFW incoming*

  2. #2
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    Jan 2013
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    it's the light inside the trunk?
    Might check that the closed-trunk sensor or latch isn't hung up or having an issue?
    2009 535i Sport
    Software: JB4 G5 | MHD | Trebila Tune | XHP Stage 3
    Hardware: GC Lites | Inlets | Outlet | 3" D-P's | 7" FMIC | S2 LPFP | TBI | DCI | ER CP | Forge DV's | 3.5 TMAP | RB PCV | Koni FSD

  3. #3
    Join Date
    May 2014
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    I don’t know what the link is for my post but when the led bar goes out, sometimes it is LED current driver. There is an alternate part or you can replace it with a new Valeo board. I’ll report back.

  4. #4
    Join Date
    Oct 2017
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    I like the sensor idea but most of these are broken wires.

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