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2012 ProStar W/Cummins no brake lights

Discussion in 'International Forum' started by area1509, Nov 27, 2013.

Page 1 of 2
  1. Nov 27, 2013 #1
    area1509

    area1509 Bobtail Member

    41
    5
    Mar 1, 2010
    Phoenix, AZ
    0
    Well with the key in the on or acc position the brake lights work some times but hears the kicker with the key in the off position they work fine?? OK i'm stumped.
    any ideas please post.

    other problems I can live with.
    ESC on the display and triangle seem to be permanently on flashing from time to time.
    the eight square lights four to the right and left of the display don't work.
    the four gauges on the right seem to get tired and shut off every now and then but usually come back on within a few minutes.

    any questions please ask as the brake lights are pretty important to me and those behind me.
    thanks A.J.
     
    area1509, Nov 27, 2013
    area1509, Nov 27, 2013
    #1
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  3. Nov 27, 2013 #2
    luvtotruck

    luvtotruck Road Train Member

    1,978
    1,161
    Jul 30, 2013
    Phoenix Arizona
    0
    A.J. I'm not sure what to tell you, sounds crazy, Those brake lights will get you an OOS! Right where you sit! Take it to a dealer.
     
    luvtotruck, Nov 27, 2013
    luvtotruck, Nov 27, 2013
    #2
  4. Nov 28, 2013 #3
    baha

    baha Road Train Member

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    2,834
    Jul 25, 2013
    ga
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    start at fuse box, pull and clean all ck brake light switch under dash 2 wire switch,ck ground wire con. lower firewall.l
     
    baha, Nov 28, 2013
    baha, Nov 28, 2013
    #3
  5. Nov 28, 2013 #4
    BuckeyeCowboy63

    BuckeyeCowboy63 Medium Load Member

    495
    291
    May 28, 2013
    Cincinnati, OH
    0
    Sounds like similar problem im experiencing with my headlights. Have been told that my ground fault interrupter is going out...might check that too....im limited to day driving till i get to terminal.
     
    BuckeyeCowboy63, Nov 28, 2013
    BuckeyeCowboy63, Nov 28, 2013
    #4
  7. Nov 28, 2013 #5
    Heavyd

    Heavyd Road Train Member

    7,626
    6,027
    Feb 4, 2009
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    It is actually a rather complicated brake switch and circuit. The switch has a zener diode and resistor in it. The circuit works differently between key on and key off. It is probably the switch, but you should have someone hook up to it to see what input voltages the body controller is seeing.
     
    Heavyd, Nov 28, 2013
    Heavyd, Nov 28, 2013
    #5
  8. Nov 28, 2013 #6
    darkknight82

    darkknight82 Bobtail Member

    21
    2
    Nov 8, 2013
    0
    darkknight82, Nov 28, 2013
    darkknight82, Nov 28, 2013
    #6
  9. Nov 28, 2013 #7
    darkknight82

    darkknight82 Bobtail Member

    21
    2
    Nov 8, 2013
    0
    circuit diagrams are the attachments
     
    darkknight82, Nov 28, 2013
    darkknight82, Nov 28, 2013
    #7
  10. Nov 29, 2013 #8
    area1509

    area1509 Bobtail Member

    41
    5
    Mar 1, 2010
    Phoenix, AZ
    0
    Where is that switch located?
     
    area1509, Nov 29, 2013
    area1509, Nov 29, 2013
    #8
  11. Nov 30, 2013 #9
    Heavyd

    Heavyd Road Train Member

    7,626
    6,027
    Feb 4, 2009
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    I believe it is buried behind the cluster in the dash.
     
    Heavyd, Nov 30, 2013
    Heavyd, Nov 30, 2013
    #9
  12. Oct 16, 2019 #10
    AndyKang

    AndyKang Bobtail Member

    13
    5
    Oct 16, 2019
    0
    Did you ever find a solution to this boss?
     
    AndyKang, Oct 16, 2019
    AndyKang, Oct 16, 2019
    #10
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