turn signal troubleshooting

Discussion in 'General Motoring' started by pyroonly, Apr 21, 2005.

  1. pyroonly

    pyroonly Guest


    looking for troubleshoot advice for a turn signal problem on a 94
    Shadow. The left signal does not flash, just stays on when applied.
    Right flashes normally. When braking or using hazards the left rear
    bulb dims.
    Last night with the park lights on the left signal indicator started
    staying on (somewhat dimmer)constantly, with the outside bulbs getting
    the grounds for the front /rear sockets? I assume the bulb grounds to
    the socket and then a wire leads to the fender apron? Can someone give
    the reason a bad ground causes an indicator to light?

    pyroonly, Apr 21, 2005
  2. pyroonly

    N8N Guest

    The bad ground causes the indicator to light because not having a
    ground, the parking lights are backfeeding voltage into the turn signal
    circuit. I would wait until it's dark-ish, then put on your parking
    lights and the left turn signal. Look closely at all the lights. The
    one where the park filament is not lit, or is glowing dimly, will be
    the one with the bad ground.

    good luck,

    N8N, Apr 21, 2005
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