I have a 2006 freightliner m2112 dump truck. last 6 of the VIN is W03367. The problem is that the park brake light stays on all the time and the low air pressure beeper/buzzer stays on when the truck is moving over 3 mph. when the truck comes to a stop, so does the buzzer. take off and it is right back on constantly. Air pressure is fine(125-130psi). any help would be much appreciated.
Engine: 12.8 mercedes 350 H.P
Changed AMU/AMV on drivers side. Biggest one on left(drivers side)
Hello and welcome to just answer.i can help you with this..yes sounds like you have a amu problem the amu or air management unit is located infront of the rear axle mounted to the crossmember,now the one on the passenger side end is for the park brake input,unplug it and make sure clean and dry,next behind the cab on the drivers side is the chassis module,it has 5 plugs connected to it,unplug all plugs and make sure clean and dry,if ok then replace the amu valve and retest,let me know how you do.FIX-IT41100.2406734954