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Wiring lights licenseplate

Discussion in 'XJ Technical Chat' started by Jostein, Apr 29, 2018.

  1. Jostein

    Jostein New Member

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    I have a 1983 xj750. I recently had the 2 wires for the brakesensor on the handle touch and it shorted . The result was that the auxiliary light,licenseplate light and lights in the speedometer and tachometer went out. I checked my fuses including the one in the headlamp .also checked the diode in the headlamp.
    Can anyone give me some advice to what's wrong? There are no electricity in any of the wires for the lights mentioned above.
     
  2. XJ550H

    XJ550H Well-Known Member Premium Member

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    brake fluid sensor wires?

    deleted info

    5 amp fuse in headlight bucket?
    5 amp.JPG
     
    Last edited: Apr 29, 2018
  3. Jostein

    Jostein New Member

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    Thanks a lot. I will check in the bucket again. There was one there but it's a glass fuse 7.5 amps. Checked it with a multimeter and it's OK. Is there more than 1 fuse in the bucket? Thanks for the diagram.
     
  4. Jostein

    Jostein New Member

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    And yes it's a Seca with rectangle headlight
     
  5. Jostein

    Jostein New Member

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    Yes it's the brakefluid sensor wires that I shorted. That's when I lost lights in auxiliary lamp,dashboard lights and licenseplatelight. I took the sensor out and it seems like just a switch for brakelight to me. Anyway it is working
     
  6. SQLGuy

    SQLGuy Well-Known Member

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    If it's the original glass fuse fusebox. Replace it.
     
  7. Jostein

    Jostein New Member

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    Thanks for comments and advice. The main fusebox is replaced . Just 1 fuse in the bucket that is glass. I replaced it to but still same problem .
     
  8. Jostein

    Jostein New Member

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    I can only see 1 fuse in the headlamp bucket and it's good.
    This is a mystery for me.
     
  9. Rooster53

    Rooster53 Well-Known Member Premium Member

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    Not sure what "auxiliary" lamp is? The dash lights and license light work on a separate section of the ignition switch routed through the 5 amp fuse in the headlight bucket on USA bikes, not positive yours are the same.

    If you have the "P" position on the ignition switch try that and see if the meter lights and license light illuminate.
     
  10. Jostein

    Jostein New Member

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    Thanks rooster. With auxiliary lamp I mean the light under the main headlight. That's good info. I will check it out. Will be back with either solution or not.
     
  11. SQLGuy

    SQLGuy Well-Known Member

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    +1 on the 5A fuse for this circuit. Looks to be the case for UK models, too.

    It feeds off a 3 pin connector in the headlight bucket, from the ignition switch block. With the connector connected, and the ignition on or in P, check if you have 12V between Blue and chassis. If you don't your main switch is probably bad. If you do, trace it to see where you're losing the 12V. It's not a long distance from there to the instrument backlight lamps. All on a Blue wire.
     
  12. Jostein

    Jostein New Member

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    Today I finally found what caused the lights in speedometer and the rpm meter,parking light,auxiliary lamp underneath headlight and license plate lamp not to work :)
    Under the tank after I got all the tape off was a blue wireconnection that was bad.the connection was warm .
    Fixed connection and everything worked perfect.
    Thanks to all of you that gave me advice on this. Great forum.
    Now it's riding time:))
     
    SQLGuy and Rooster53 like this.
  13. Chitwood

    Chitwood Well-Known Member

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    Either it was warm from too much resistance or you may need to clean ground connections as well.
     

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