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Need help with 5700XE Cab LED marker lights.

Discussion in 'Western Star Forum' started by ShortCircuit, May 12, 2019.

  1. May 12, 2019 #1
    ShortCircuit

    ShortCircuit Bobtail Member

    26
    15
    May 7, 2017
    0
    On my driver side some of the amber LED started going dim last month, now some completely went out. I measured voltage on the last light on the harness that is easiest to get to and are getting good 12.8V with truck not running. Some I just can’t reach. I was thinking it’s corrosion on the harness but now seeing good voltage not sure.

    Any ideas what should I check first before replacing them? Also what’s the best way to dismount these lights?


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    ShortCircuit, May 12, 2019
    ShortCircuit, May 12, 2019
    #1
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  3. May 18, 2019 #2
    Animosus

    Animosus Medium Load Member

    656
    2,482
    Dec 7, 2015
    SE Wyoming
    0
    You can take one of the lights that works properly, and plug it into the other locations to make sure the wiring is intact.
     
    Animosus, May 18, 2019
    Animosus, May 18, 2019
    #2
  4. Mar 27, 2020 #3
    stibtown

    stibtown Bobtail Member

    8
    7
    Jul 28, 2013
    Blairstown,Ia
    0
    This is an old thread, but has anyone come up with a solution? My '16 is doing the same thing. Have put a few new lights in and they are expensive! Two of the new lights are dimming and eventually gone out.
     
    stibtown, Mar 27, 2020
    stibtown, Mar 27, 2020
    #3
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