No backup lights on my '03 Pete 330 Oil Truck w/ an Allison MD3066p

Discussion in 'Peterbilt Forum' started by Bob J., Sep 15, 2015.

  1. Bob J.

    Bob J. Bobtail Member

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    Sep 15, 2015
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    Hi Everybody, I'm looking for some help with my 330. I have no backup lights or alarm when I put my truck in reverse. I have no power coming back from the front of the truck. I couldn't find a fuse or relay that was bad or even marked "reverse warning" for that matter but I tested them all to be safe. Anybody have any ideas? Thanks Bob J.
     
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  3. RSQ20

    RSQ20 Medium Load Member

    Use a non destructive tone generator and follow the beep..

    ... Philip
     
  4. AModelCat

    AModelCat Road Train Member

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    If fuses are good my next step would be to check and see if the reverse switch is working. I have no idea as to where you would find it on an Allison.
     
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