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Diff lock sensor issue

Discussion in 'Peterbilt Forum' started by Rd21, Jan 25, 2024.

  1. Jan 25, 2024 #1
    Rd21

    Rd21 Bobtail Member

    1
    0
    Jan 25, 2024
    0
    Hello,

    I have a 2017 peterbilt 579. Last two days this diff lock sign has been popping up on my dash. It sometimes flickers on and off and sometimes stays on for 30mins and then seems to randomly go away.

    None of my lockers are engaged.
    Also my truck drives completely normal so I know none of the lockers are engaging.

    Is this a senor issue? It seems to happen when it is raining and it flickers when I drive over bumps. Anyone had this issue before?

    Thanks!
     

    Attached Files:

    Rd21, Jan 25, 2024
    Rd21, Jan 25, 2024
    #1
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  3. Jan 25, 2024 #2
    supersnackbar

    supersnackbar Road Train Member

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    Aug 19, 2007
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    I have a '22 Volvo 860 that did the same thing. It has both diff locks and a locking front drive axle. It started when I loaded at a place that has you pull up on an elevated axle scale while loading. When I went to pull off the scale to leave, I think it pulled the wiring harness too tight. The shop replaced the sensor on the front diff for the locker and loosened the wiring harness some and it hasn't done it since. Not sure which one it was because I have several wires plugged into the front diff.
     
    supersnackbar, Jan 25, 2024
    supersnackbar, Jan 25, 2024
    #2
    Rd21 Thanks this.
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