Switches are not working on a 2020 Peterbilt 579, dash lights come on for the option but don’t function! the PTO is also on that bank but it stays on and does not disengage! pto light stays on no matter what and yes does stay engaged! Diff locks/fifth wheel slide/air suspension I took the plug off the bank where solenoids are the 6pin and there’s power (one pin is 11V the other 2 on same side have dashes and light is dim, the other side has nothing. I took all the connections off one by one…
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