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2006 670 D12 BAD LCM?

Discussion in 'Volvo Forum' started by Aleks_Andar, Jan 15, 2021.

  1. Jan 15, 2021 #1
    Aleks_Andar

    Aleks_Andar Bobtail Member

    29
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    Sep 11, 2015
    0
    Never seen something like this so I’m guess its the LCM. 2006 670 D12- Both tail turn signals works but when you apply foot brake only RH stop light coming ON.. Since they used same wire I guess it’s the LCM.. Anyone input on this ? TIA
     
    Aleks_Andar, Jan 15, 2021
    Aleks_Andar, Jan 15, 2021
    #1
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  3. Jan 15, 2021 #2
    Snailexpress

    Snailexpress Road Train Member

    2,654
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    Apr 28, 2014
    Rocky
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    Do you have both tail lights? Check is ground wire good on the rear harness.
     
    Snailexpress, Jan 15, 2021
    Snailexpress, Jan 15, 2021
    #2
  4. Jan 15, 2021 #3
    Aleks_Andar

    Aleks_Andar Bobtail Member

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    Sep 11, 2015
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    Everything works fine except RH Stop Light.. Trailer works too
     
    Aleks_Andar, Jan 15, 2021
    Aleks_Andar, Jan 15, 2021
    #3
  5. Jan 15, 2021 #4
    Sharky88

    Sharky88 Heavy Load Member

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    Sep 25, 2013
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    Could just be the bulb
     
    Sharky88, Jan 15, 2021
    Sharky88, Jan 15, 2021
    #4
  7. Jan 15, 2021 #5
    Aleks_Andar

    Aleks_Andar Bobtail Member

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    Sep 11, 2015
    0
    Sir thanks for the input, but I work mechanic for living.. And haven’t seen this till now.. But customer refused for me to proceed .Soo I know few things about lights bulb
     
    Aleks_Andar, Jan 15, 2021
    Aleks_Andar, Jan 15, 2021
    #5
  8. Jan 15, 2021 #6
    flood

    flood Road Train Member

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    Dec 25, 2010
    0
    did you check the lcm thru the dash
     
    flood, Jan 15, 2021
    flood, Jan 15, 2021
    #6
  9. Jan 20, 2021 #7
    nasriza

    nasriza Road Train Member

    2,368
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    Feb 1, 2013
    Chicago, IL
    0
    remove all the old light control module fuses and install new fuses and see if it doesn't change replace lcm. sometime fuses build up carbon on legs and cut out particular circuits from lcm module have had this happen a lot with headlight only one working and other one wont but also same with brake lights.
     
    nasriza, Jan 20, 2021
    nasriza, Jan 20, 2021
    #7
    Aleks_Andar Thanks this.
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