MII Blinker Problem

Discussion in 'Mustang II' started by Addicted_2_II, Feb 10, 2004.

  1. Addicted_2_II New Member

    Member Since:
    Dec 29, 2003
    Message Count:
    187
    Likes Received:
    0
    Trophy Points:
    0
    Ok... I am not a electronics expert but I do know my way around a multi-meter. My right side blinks work just fine... but on the left side only the rear works and something really strange is happening in the front.

    There are two bottom contacts and one side contact in the blinker bulb housing. During flash, one of the bottom contacts gives a voltage of .2v and the other gives 12 volts. The third, side contact, is the ground (This ground tones out good). Well those numbers match up exactly with the right side of the car that is working. BUT, when I put a bulb in, I get no voltage at all (Yes the same bulb that was working on the other side). So I thought it was the socket so I spliced the wires and soldered them directly to the bulb.. Same deal!!! :bang:

    The only thing I can think is that there is a bare wire somewhere and when I attach the bulb, it is easier to jump to ground somewhere else than to beat the resistance of the bulb element???

    Any thoughts????

    Chad
  2. 75stang302 Founding Member

    Member Since:
    Mar 31, 2002
    Message Count:
    1,036
    Likes Received:
    0
    Trophy Points:
    0
    where exactly are you placeing the positive and negative leads when you do the checks? is it to ground ...across the bulb ...ect.
  3. Addicted_2_II New Member

    Member Since:
    Dec 29, 2003
    Message Count:
    187
    Likes Received:
    0
    Trophy Points:
    0
    Most of the time I clip the neg lead to ground with a aligator clip. But I also tried using the ground present in the socket. I even regrounded the socket ground to the frame thinking that maybe it just did not have a good ground. Still no go :(
  4. COBRAIIW New Member

    Member Since:
    Apr 26, 2003
    Message Count:
    598
    Likes Received:
    0
    Trophy Points:
    0
    One of the contacts is for your parking lights,one is for your blinker.
  5. zwhitr Founding Member

    Member Since:
    Aug 27, 2001
    Message Count:
    851
    Likes Received:
    0
    Trophy Points:
    0
    Normally replacing the bulb will work

    are your measurements with respect to ground if i remember correctly the ground is not ground it routes through to the relay..
  6. StangIIttop New Member

    Member Since:
    Sep 28, 2003
    Message Count:
    28
    Likes Received:
    0
    Trophy Points:
    0
    I had something like that happen to mine except it was the right side. Turned to be the turn signal flasher unit. Replaced it and it works fine now.

Share This Page