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Instrument cluster and sidelights always on 200 1992

posted by  AlanK on  Fri Jun 12 16:36 CST 2009
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last visit: Thu Jan 16 08:03 CST 2014
[RELATED]

My instrument cluster and sidelights are always on even after turning off the ignition and removing the key and turning the light switch to off. I suspect it is a stuck relay, but which one?
Thanks for any suggestions.








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    Instrument cluster and sidelights always on 200 1992

    uid 18886's pic
    posted by  sdewolfe on  Fri Jun 12 17:50 CST 2009
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    last visit: Mon Jan 31 05:56 CST 2011
    [RELATED]

    Howdy,

    Pull fuse 16. Did the lights go out? Just looking at the schematic, it looks like the headlight relay contacts may be welded together.

    You might find this page useful:
    http://www.cricketlady.com/images/240/HL_Circuit.png

    Credit to Lucid.


    --
    Mr. Shannon DeWolfe -- I've taken to using mister because my name misleads folks on the WWW. I am a 53 year old fat man. ;-)








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    Instrument cluster and sidelights always on 200 1992

    posted by  billy242 on  Fri Jun 12 17:43 CST 2009
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    last visit: Wed Sep 8 05:10 CST 2010
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    The instrument cluster and sidemarker lights are not controlled by a relay. I would suspect your headlight switch itself has failed (shorted) internally. Check your switch with a multimeter set to ohms to see if the auxiliary lights side of the switch has continuity even in the off position. This is easiest to do if the switch is removed from the dash first. Consult the wiring diagram from a Haynes or Bentley manual for a pin-out diagram for the headlight switch to see which terminals to use during the testing.

    billy242
    1980 242DL with lots of GT and IPD stuff








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      Instrument cluster and sidelights always on 200 1992

      posted by  AlanK on  Sat Jun 13 17:25 CST 2009
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      last visit: Thu Jan 16 08:03 CST 2014
      [RELATED]

      I pulled the headlight switch out and disconnected it - the sidelights and instrument cluster stayed on. However, I have since found that the problem is intermittent and so I am still inclined towards the relay possibility.








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        Instrument cluster and sidelights always on 200 1992

        posted by  billy242 on  Sat Jun 13 18:16 CST 2009
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        last visit: Wed Sep 8 05:10 CST 2010
        [RELATED]

        Last night when I posted, I was tired and mis-read your message and thought that you had an '82 and not a '92. I know that my 1980 does not have a headlight relay, and all current flows through the switch. I did have a switch failure in my car a few years ago, which is what prompted me to post on this issue. If you pulled the wires from the headlight switch and the instrument and side marker lights stayed on, then chances are good that you have a relay that is on it's way out. Please let us know what you find out when you have diagnosed the actual problem...

        billy242
        1980 242DL with lots of GT and IPD stuff







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