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2002 Volvo D12 right turn light issue

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Ciufero, Mar 2, 2019.

Page 1 of 2
  1. Mar 2, 2019 #1
    Ciufero

    Ciufero Bobtail Member

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    Dec 29, 2018
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    4 way flashers OK,
    left turn signal working,
    right turn signal not working, can hear(relay/flasher) it but don't see it blinking on my dash/bobtail/trailer, any clue?
     
    Ciufero, Mar 2, 2019
    Ciufero, Mar 2, 2019
    #1
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  3. Mar 2, 2019 #2
    HopeOverMope

    HopeOverMope Road Train Member

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    Try to unplug the marker/turn lights one at a time, then activate the turn signal. Maybe one of those lights has a short in it. So if you unplug one and it starts working the others, then u change that one light out.

    ... it’s a place to start...
     
    Last edited: Mar 3, 2019
    HopeOverMope, Mar 2, 2019
    HopeOverMope, Mar 2, 2019
    #2
  4. Mar 3, 2019 #3
    Ciufero

    Ciufero Bobtail Member

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    Dec 29, 2018
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    ... I did
    front - no change
    side blinker - no change
    rear ( the one that is working an can hear my relay working but no dash light/sound) - when unpluged flasher relay stoped working
     
    Ciufero, Mar 3, 2019
    Ciufero, Mar 3, 2019
    #3
  5. Mar 3, 2019 #4
    HopeOverMope

    HopeOverMope Road Train Member

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    9BBDC59F-F74D-4BD8-8248-2E084A2825DA.jpeg
    Hmm, that’s interesting. If you had a test light, you could unplug the pigtail to the trailer and turn on the right turn signal and check for power coming out of the pigtail. This test will check to see if the truck is giving the command to the trailer or not.
     
    HopeOverMope, Mar 3, 2019
    HopeOverMope, Mar 3, 2019
    #4
  7. Mar 3, 2019 #5
    Ciufero

    Ciufero Bobtail Member

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    Dec 29, 2018
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    trailer.. same thing , everything OK, buy no right turn ( i did unplug under cab cable to make sure there is no short in it , but no luck)
     
    Ciufero, Mar 3, 2019
    Ciufero, Mar 3, 2019
    #5
  8. Mar 3, 2019 #6
    Ridgeline

    Ridgeline Road Train Member

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    Take it to the dealer and have them check the body computer because the body computer controls the turn signals.
     
    Ridgeline, Mar 3, 2019
    Ridgeline, Mar 3, 2019
    #6
  9. Mar 3, 2019 #7
    Ciufero

    Ciufero Bobtail Member

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    its an older model Volvo without Light Control Module
     
    Ciufero, Mar 3, 2019
    Ciufero, Mar 3, 2019
    #7
  10. Mar 3, 2019 #8
    HopeOverMope

    HopeOverMope Road Train Member

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    DD2D80D3-CBE9-4B6D-9685-CB9A499EC728.png 14B2C753-42AE-4A6D-9186-F283B804C88F.png Have you tested every fuse and replaced if bad?
     
    HopeOverMope, Mar 3, 2019
    HopeOverMope, Mar 3, 2019
    #8
  11. Mar 3, 2019 #9
    Ciufero

    Ciufero Bobtail Member

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    Dec 29, 2018
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    I did, fuses OK
     
    Ciufero, Mar 3, 2019
    Ciufero, Mar 3, 2019
    #9
  12. Mar 3, 2019 #10
    HopeOverMope

    HopeOverMope Road Train Member

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    Try this website to maybe get an idea. It’s got like every wire diagram for gen 1 Volvo’s

    Schematics
     
    HopeOverMope, Mar 3, 2019
    HopeOverMope, Mar 3, 2019
    #10
    Ciufero Thanks this.
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