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Thread: Weird wiring issue

  1. 4th January 2012, 06:26 PM #1
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    Weird wiring issue

    I know of someone with a RRS with a weird wiring issue.

    He has put a charge cable for his trailer from battery through to a 12 pin plug. Power is coming directly from the battery, and body earth is being used. It's live at the plug, but no power goes to the van unless the headlights are on. It's got me beat.
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  2. 4th January 2012, 07:41 PM #2
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    Yep! that's weird.

    Read up on kirchhoff's law
    .
    Last edited by wrinklearthur; 4th January 2012 at 07:54 PM. Reason: kirchhoff's law
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  3. 4th January 2012, 07:49 PM #3
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    Fried RRS anyone?

    That extra wiring needs three things to prevent a possible fire!
    A fuse at the battery, a means of disconnecting that lead when starting ( a NC relay in line ) and a decent earth cable between the RRS's chassis and the trailer chassis.
    .
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  4. 4th January 2012, 08:07 PM #4
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    It sounds like someone has made a mistake on the plug wiring end, where the +ve wire is in the wrong spot & the lighting circuit is in the spot the permanent power should be.

    If the +ve wire from the battery can be tested find what pin it is in & then re-wire if required.

    Cheers
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  5. 4th January 2012, 09:02 PM #5
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    Quote Originally Posted by wrinklearthur
    That extra wiring needs three things to prevent a possible fire!
    A fuse at the battery, a means of disconnecting that lead when starting ( a NC relay in line ) and a decent earth cable between the RRS's chassis and the trailer chassis.
    .
    He has all that apparently.
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  6. 4th January 2012, 09:03 PM #6
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    Quote Originally Posted by sniegy
    It sounds like someone has made a mistake on the plug wiring end, where the +ve wire is in the wrong spot & the lighting circuit is in the spot the permanent power should be.

    If the +ve wire from the battery can be tested find what pin it is in & then re-wire if required.

    Cheers
    That makes sense. I will tell him to check that.
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  7. 4th January 2012, 09:12 PM #7
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    plug pin outs

    Hi

    Have a look at this link.

    trailer wiring diagram

    .
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  8. 4th January 2012, 09:27 PM #8
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    Quote Originally Posted by wrinklearthur
    Hi

    Have a look at this link.

    trailer wiring diagram

    .
    Ta...have sent this on to him.
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  9. 8th January 2012, 05:27 PM #9
    outasight
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    Apart from anything else, it also sounds just like the person has NOT split the twin(left/right)park light outputs described in Sniegy's excellent trailer electric brakes wiring "how to" thread http://www.aulro.com/afvb/d3-d4-rrs/...er-brakes.html which would explain why only getting power on one pin when the lights were on ...

    Was this the same situation also asked about on the expandaownersaustralia Yahoo Group?

    Regards,

    Les.
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  10. 8th January 2012, 06:07 PM #10
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    Quote Originally Posted by outasight
    Apart from anything else, it also sounds just like the person has NOT split the twin(left/right)park light outputs described in Sniegy's excellent trailer electric brakes wiring "how to" thread http://www.aulro.com/afvb/d3-d4-rrs/...er-brakes.html which would explain why only getting power on one pin when the lights were on ...

    Was this the same situation also asked about on the expandaownersaustralia Yahoo Group?

    Regards,

    Les.
    Hi les,it was the same scenario.

    He found that it was not wired correctly by LR. Two wires were the wrong way around. LR were employed to install the larger 12 pin.
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