shells Posted April 30, 2013 Share Posted April 30, 2013 I recently purchased a 2006 mack cv713, my problem is my low air buzzer and light have quit working,i have replaced the pressure switches.no fix but if I touch my test light to the terminals(cant remember if it was the white or black wire they do work) work even with pressure at 120. just not working normal .any help would be greatly appreciated. Quote Link to comment https://www.bigmacktrucks.com/topic/31010-low-air-alarm/ Share on other sites More sharing options...
TozziWelding Posted May 4, 2013 Share Posted May 4, 2013 Did you jump out the buzzer to make sure it works, same with the light. Quote Link to comment https://www.bigmacktrucks.com/topic/31010-low-air-alarm/#findComment-181687 Share on other sites More sharing options...
rsb502 Posted May 8, 2013 Share Posted May 8, 2013 I can't remember is this a 2 wire pressure switch or a three wire? If its a 2 wire one side should be hot with the key on an the switch should close under 60psi and you should have power on both sides. Like tozzi said above have you confirmed the buzzer and light are both good? Try testing the buzzer with +12v and make sure all is good there. then you should test the switch while reducing the system pressure to below 60 the switch should close there. Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/31010-low-air-alarm/#findComment-182311 Share on other sites More sharing options...
Doffer Posted May 10, 2013 Share Posted May 10, 2013 Guys I work with keep taking a screw driver and punching a hole through the buzzers because the turn signals buzz too. Its so annoying every time you get into another truck, and the low air buzzer isnt working Quote Link to comment https://www.bigmacktrucks.com/topic/31010-low-air-alarm/#findComment-182693 Share on other sites More sharing options...
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