cigarette lighter

Discussion in 'Tech/Mech General' started by Spade, Mar 24, 2015.

  1. Spade

    Spade Funster

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    Hi lads
    Any chance of a bit of help
    I am trying to change the cigarette lighter socket on my ducato (year 2000) to a lockable type
    http://www.ebay.ie/itm/231322095149?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
    There are three wires in the original fitting-purple,red/blue and yellow.
    the new socket has just positive and negative only.
    I checked the connections on the old socket wit a continuity tester and it seems that the red/blue is positive and the yellow is negative.I don't know about the purple wire.
    I connected the red/blue to positive and yellow to negative but no luck.
    I then connected purple positive and yellow negative but again no luck.
    Where am i going wrong?
    why is there 3 wires instead of two.
    i have checked the fuse.it is fine
     
  2. old-mo

    old-mo Funster Extra Special Life Member

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    Think you will find one is for illumination when your light`s or ignition is on... most cig lighters have a small bulb strapped to the side... some how.. :BigGrin:
     
  3. RichardB

    RichardB Funster

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    I seem to remember when I changed my cig lighter it had 3 wires
    There was a negative and two positives. One was a feed to the positive of the socket and the other was a positive that was switched with the side/headlights which lit a bulb in the cig igther socket so you can see if at night. I just connected the negative and the positive that ran from the fuse board and not the one that was switch with lights.
     
  4. Techno

    Techno Funster Life Member

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    As said one is purely illumination. Have you tested with the IGNITION ON!
     
  5. Spade

    Spade Funster

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    thanks lads
    did not think of the light for illumination
    the lighter circuit is live even when there is no keys in the ignition.
    the radio is the same.
    i assume a previous owner rewired it, so as to have radio and power even with no keys.
    it makes it harder to diagnose .
    thankfully i did not cut off the fiat connector.
    i just used male spade connectorsat one end and female at the other
    the original socket was damaged when i removed it. but i have kind of got it back in shape
    maybe the new socket is not working
     
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