garcia26233 Posted August 8, 2011 Share Posted August 8, 2011 I have this two switches on my 1999 Mack Ch but I've never known what there for if and when I should use them. There location is dash area, left of steer colun. They read batt feed and ing feed, what are they for??? Quote Link to comment https://www.bigmacktrucks.com/topic/20104-what-this-switches-do/ Share on other sites More sharing options...
Mike Posted August 9, 2011 Share Posted August 9, 2011 I saw that somewhere else posted several weeks ago, but don't recall where and who posted it. I can only help by referring you to pm rhasler or mackpro on the subject at hand. Hope this helps you. mike Quote Link to comment https://www.bigmacktrucks.com/topic/20104-what-this-switches-do/#findComment-83391 Share on other sites More sharing options...
rhasler Posted August 9, 2011 Share Posted August 9, 2011 The switches you refer to are auxiliary power switches. You can wire them to power added on items. The battery feed switch will have power at all times, as long as the battery is connected and the fuse is intact. The ignition feed switch will only supply power when the key is turned to the "run" position.. Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/20104-what-this-switches-do/#findComment-83394 Share on other sites More sharing options...
Terry T Posted August 9, 2011 Share Posted August 9, 2011 I was selling Mack's in '99 and we had one customer who ordered all of his trucks with these switches. He runs a flat bed operation and wired work lights thru the Ign Feed. Not sure what he used the Bat Feed for. I think he is the only one we ever added these switches for. None of our stock units were ever ordered with them and I don't think any other customers ever requested them. Quote Link to comment https://www.bigmacktrucks.com/topic/20104-what-this-switches-do/#findComment-83400 Share on other sites More sharing options...
mackcl96 Posted August 14, 2011 Share Posted August 14, 2011 In the 90's every Elite interior we had or seen in the northeast here had them switches.. good idea ,,,,,,,,But would have been nicer if Mack ran the power out to the firewall instead of a few inches from the switch Quote Thanks for hearing me out.You can have the soap box now---------JIM Link to comment https://www.bigmacktrucks.com/topic/20104-what-this-switches-do/#findComment-83678 Share on other sites More sharing options...
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