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Problem with reverse lamps

Discussion in 'Volvo Forum' started by 8080, Sep 18, 2011.

Page 1 of 2
  1. Sep 18, 2011 #1
    8080

    8080 Bobtail Member

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    Aug 19, 2011
    Dallas, Texas
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    Installing new rear light assembly on truck. I failed inspection because the reverse lamps stopped working. I understand that I need to replace the reverse switch which is located on the transmission. Is this the reverse lamp switch? I searched all over to get and idea of where to find it on the tranny and what it looked like.

    Is this it? Eaton Fuller Transmission
     

    Attached Files:

    8080, Sep 18, 2011
    8080, Sep 18, 2011
    #1
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  3. Sep 18, 2011 #2
    CondoCruiser

    CondoCruiser The Legend

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    Looks too low on the tranny to be a backup switch?

    You can always back probe the wire for 12V. Put it in reverse with the key on. Find your 12V and then take it out of reverse, but leave the key on and see if the 12V disappears. Then you know you have the right one. Even check that connector hanging there. If you do find the right one, run a jumper across the connector and see if the reverse lights come on, then you know for sure it's the switch and not the wiring.

    What tranny do you have?

    What's that on the left side of the picture? The big crack. Doesn't look good.
     
    CondoCruiser, Sep 18, 2011
    CondoCruiser, Sep 18, 2011
    #2
  4. Sep 18, 2011 #3
    Pablo-UA

    Pablo-UA Road Train Member

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    reverce light is on with LCM unit. so check LCM for codes.

    Ok, with manual tranny switch is used but this swith is connected to LCM.

    It you have auto, any auto, I-shift for example, reverse light is actuated with J1939!

    so use VCADs pro to check sw
     
    Pablo-UA, Sep 18, 2011
    Pablo-UA, Sep 18, 2011
    #3
    8080 Thanks this.
  5. Sep 18, 2011 #4
    8080

    8080 Bobtail Member

    23
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    Aug 19, 2011
    Dallas, Texas
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    Ok thanks.. I am showing fault mid 216 psid 48 fmi 6

    Any help is appreciated. If you could relink the volvo codes I appreciate it.
     
    8080, Sep 18, 2011
    8080, Sep 18, 2011
    #4
  7. Sep 18, 2011 #5
    8080

    8080 Bobtail Member

    23
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    Aug 19, 2011
    Dallas, Texas
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    Cracks? Not seeing any cracks...
     
    8080, Sep 18, 2011
    8080, Sep 18, 2011
    #5
  8. Sep 18, 2011 #6
    Pablo-UA

    Pablo-UA Road Train Member

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    Park light tractor rear and Licens plate.... broken wire.. need a diagram?
     
    Pablo-UA, Sep 18, 2011
    Pablo-UA, Sep 18, 2011
    #6
  9. Sep 18, 2011 #7
    Pablo-UA

    Pablo-UA Road Train Member

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    btw... check these fuses....

    [​IMG]
     
    Pablo-UA, Sep 18, 2011
    Pablo-UA, Sep 18, 2011
    #7
    8080 Thanks this.
  10. Sep 18, 2011 #8
    8080

    8080 Bobtail Member

    23
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    Aug 19, 2011
    Dallas, Texas
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    Holy Cow... there are fuses under there.. 2007? ok ill get to it.
     
    8080, Sep 18, 2011
    8080, Sep 18, 2011
    #8
  11. Jul 30, 2012 #9
    mravici

    mravici Bobtail Member

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    Jul 30, 2012
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    I have same problem,but couldn't find these fuses.Do you know location on 2007 volvo vnl670?
     
    mravici, Jul 30, 2012
    mravici, Jul 30, 2012
    #9
  12. Jul 30, 2012 #10
    Pablo-UA

    Pablo-UA Road Train Member

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    They are usually in fuse panel but on some cabovers they may be hidden in dash. six fuses.....

    BTW, what the fault code?
     
    Pablo-UA, Jul 30, 2012
    Pablo-UA, Jul 30, 2012
    #10
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