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Thread: BMW 320d "99 fuse fusebox has a 5V rail??

  1. #1
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    Question BMW 320d "99 fuse fusebox has a 5V rail??

    IMG_20171206_092417_556o.jpg
    Please help me on my 320d that has some malfunction systems centered in that fuses that are red rounded (see photo attached). I made some measurements in each one of that rounded fuses and they only has 5 Volt ! is it normal on BMW diesel engine? or it must have 12Volt like other cars?
    Attached Images Attached Images

  2. #2
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    You likely have a fuse panel issue. The only place you’ll find 5VDC in your car is in a USB port!

  3. #3
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    Quote Originally Posted by MarcoZandrini View Post
    You likely have a fuse panel issue. The only place you’ll find 5VDC in your car is in a USB port!
    I don't even had usb port on this e46 model.
    So where it be the bad electric contact?!?!

  4. #4
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    IMG_20171210_181312_538.jpgIMG_20171210_195238_155.jpg

    Finally, all fuses need to had 12V and the problema was a bad electric contact in conector and contacts of the ingnition key. All had been cleanned and now all working well.

  5. #5
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    You should consider replacing the ignition switch.

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