News

Where is the original ground location for power window switches?

Discussion in '308/328' started by ATSAaron, Feb 20, 2020.

  1. ATSAaron

    ATSAaron Formula 3
    Silver Subscribed

    Jun 1, 2004
    1,057
    Shady Shores, TX
    Full Name:
    Aaron Bunch
    We are installing the Ferrparts upgraded window motors in a 308. They worked exactly twice and then our ground signal disappeared at the switches.

    The ground appears to be shared with the wiper motor, turn signal flasher, parking lights, and a few other things.

    Thanks in advance,

    Aaron
     
  2. To remove this ad click here.

  3. miketuason

    miketuason F1 World Champ
    Silver Subscribed Owner

    Feb 24, 2006
    14,223
    Cerritos, CA.
    Full Name:
    Mike
    Couldn’t you just make a separate ground wire to the body or chassis for the Switch? Which is probably better than sharing it with the rest.
     
  4. ATSAaron

    ATSAaron Formula 3
    Silver Subscribed

    Jun 1, 2004
    1,057
    Shady Shores, TX
    Full Name:
    Aaron Bunch
    that’s the backup plan. Haha

    But I’d really like to find the original ground and clean/repair it.
     
  5. Ferraridoc

    Ferraridoc F1 Veteran

    Jun 20, 2012
    9,321
    Gold Coast, Aust.
    Full Name:
    Patrick
    There's a big common earth up under the dash, above the fuse panel. If that screw becomes loose. all sorts of electrical gremlins show up. I knew a guy who had a brand new 328 which had an intermittent miss, amongst other gremlins. Two batteries and an alternator (under warranty) later, he found a loose ground screw under the dash - fixed. The local dealer was an idiot (I bought a car off him, too - don't get me started).
     
  6. ATSAaron

    ATSAaron Formula 3
    Silver Subscribed

    Jun 1, 2004
    1,057
    Shady Shores, TX
    Full Name:
    Aaron Bunch
    In case anyone else needs to know, it's behind and above the radio. If you remove the fuse panel you can (pretty) easily get a 10mm wrench on the nut.

    Aaron
     
  7. To remove this ad click here.

Share This Page