peterrocco Posted December 31, 2015 Share Posted December 31, 2015 DOES ANYONE HAVE ANY idea where the ecu fuse might be on a 2009 gu813, I have 140 200 9 code in the vcm and other codes in the abs and inst modules, The ecu is not on the can line and I would like to check power fuse first Quote Link to comment https://www.bigmacktrucks.com/topic/43344-ecu-power-09-gu813/ Share on other sites More sharing options...
wheeler73 Posted January 1, 2016 Share Posted January 1, 2016 Under the left side of the steering column the cover for the epdm which has the eecu fuse in it. Hopefully the fuse chart is still with the cover 1 Quote Link to comment https://www.bigmacktrucks.com/topic/43344-ecu-power-09-gu813/#findComment-318147 Share on other sites More sharing options...
Challenger Posted January 3, 2016 Share Posted January 3, 2016 Mack had problems with the windshield seal leaking a few years back (not sure of the years effected). The water would leak down on the EPDM and cause corrosion. There was a PI which called for replacing the EPDM and adding a rubber gasket to the EPDM which would deflect the water away from the EPDM. Its kinda like putting a baseball hat on in the rain, its still raining but your face isn't getting wet. The EPDM is a fuse box that is very simple to replace. Quote Link to comment https://www.bigmacktrucks.com/topic/43344-ecu-power-09-gu813/#findComment-318476 Share on other sites More sharing options...
mp8_macky Posted January 5, 2016 Share Posted January 5, 2016 mine mack had a corrosion issue, mentioned by mr challenger Quote Link to comment https://www.bigmacktrucks.com/topic/43344-ecu-power-09-gu813/#findComment-318716 Share on other sites More sharing options...
220cummins Posted January 6, 2016 Share Posted January 6, 2016 There currently a recall for epdm replacements like challenger described SCO375. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/43344-ecu-power-09-gu813/#findComment-318796 Share on other sites More sharing options...
JKGP Posted April 16 Share Posted April 16 Question I have a GU813E with this water intrusion problem and I have no start because of it. How can I get the repair done or the parts covered without having my truck go to a Mack shop? It is actually down in Haiti but came from North Carolina? Quote Link to comment https://www.bigmacktrucks.com/topic/43344-ecu-power-09-gu813/#findComment-573770 Share on other sites More sharing options...
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