Peterbilt 379 Low Air Pressure Buzzer

Discussion in 'Trucks [ Eighteen Wheelers ]' started by chr1s427, May 12, 2012.

  1. chr1s427

    chr1s427 Bobtail Member

    Messages:
    18
    Thanks Received:
    1
    Joined:
    Feb 23, 2012
    So I was replacing the bulbs in my warning light cluster and like a dummy I left the key on while trying to put it back in place. Long story short, the low air pressure buzzer was working and when I went to put the cluster back in the dash I grounded out the buzzer and it quit working. Is there a fuse or relay for this thing somewhere? Its a 1999 379. Thanks.
     
  2. truckmechanic

    truckmechanic Medium Load Member

    Messages:
    534
    Thanks Received:
    118
    Joined:
    Jan 14, 2012
    Location:
    Hi Desert Ca
    I don't belive there is a fuse just for the buzzer you Probly burned out the circuit board pretty common on the styled dash you have while putting the dash back in with the key on ate any other things not working like earning lites and such?
     
  3. chr1s427

    chr1s427 Bobtail Member

    Messages:
    18
    Thanks Received:
    1
    Joined:
    Feb 23, 2012
    Well the warning lights still work. Just no buzzer. I took it apart because the low air light wasn't working. It works now but the buzzer doesn't. Lol. Any chance to repair this thing or is it one of those goto a salvage yard and get another?
     
  4. heavyhaulerss

    heavyhaulerss Road Train Member

    Messages:
    3,026
    Thanks Received:
    1,377
    Joined:
    Dec 23, 2009
    Location:
    AL/TN BORDER
    same thing happened to me. it was a blown fuse. don't spend what I did to find that out. check all fuses. I have a intl, so cannot help you with location of fuse, but my bet, is, it is just a fuse, not anything more.
     
  5. chr1s427

    chr1s427 Bobtail Member

    Messages:
    18
    Thanks Received:
    1
    Joined:
    Feb 23, 2012
    I checked all the fuses in the left kick panel. Not sure if there are more somewhere else.
     
  6. cadillacdude1975

    cadillacdude1975 Road Train Member

    Messages:
    1,081
    Thanks Received:
    363
    Joined:
    Mar 20, 2010
    Location:
    Chattanooga, TN
  7. cadillacdude1975

    cadillacdude1975 Road Train Member

    Messages:
    1,081
    Thanks Received:
    363
    Joined:
    Mar 20, 2010
    Location:
    Chattanooga, TN
    AnneK Thanks this.
  8. chr1s427

    chr1s427 Bobtail Member

    Messages:
    18
    Thanks Received:
    1
    Joined:
    Feb 23, 2012
    Thank you very much! I will check out the schematics when I get home!
     
  9. chr1s427

    chr1s427 Bobtail Member

    Messages:
    18
    Thanks Received:
    1
    Joined:
    Feb 23, 2012
    Looks like the panel itself is smoked. I can jumper power to the buzzer and it works but it doesn't work when I plug the 3 wire plug into it. Anybody got a line on some used parts? Need a warning lamp module PN 17-04120 :(
     
  10. Flattopper

    Flattopper Bobtail Member

    Messages:
    7
    Thanks Received:
    2
    Joined:
    Apr 28, 2012
    That happens more than you would think we A handful of them every month
     
Draft saved Draft deleted