2006 670 D12 BAD LCM?

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

  1. Aleks_Andar

    Aleks_Andar Bobtail Member

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    Sep 11, 2015
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    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
     
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  3. Snailexpress

    Snailexpress Road Train Member

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    Do you have both tail lights? Check is ground wire good on the rear harness.
     
  4. 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
     
  5. Sharky88

    Sharky88 Medium Load Member

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    Sep 25, 2013
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    Could just be the bulb
     
  6. Aleks_Andar

    Aleks_Andar Bobtail Member

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    Sep 11, 2015
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    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
     
  7. flood

    flood Road Train Member

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    did you check the lcm thru the dash
     
  8. nasriza

    nasriza Road Train Member

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    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.
     
    Aleks_Andar Thanks this.
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