Hookhard Posted July 14, 2020 Report Share Posted July 14, 2020 Does anyone know how to deal with this code? I have a SCT tuner with a custom dyno tune which is updated and this control modular code keeps coming up after I clear it. I haven’t had any issues before untiI I took it out of storage a month ago. The Battery was on a tender all winter. thanks! Quote Link to comment Share on other sites More sharing options...
twobjshelbys Posted July 14, 2020 Report Share Posted July 14, 2020 (edited) Did you look up the code? It says it's a ROM checksum failure. How old is the battery? Mine was always on a tender but after 7 years even thought the tender claimed all was OK, the tell tale sign on the Ford GT was intermittent gauges. It could also be caused by a faulty ground. Make sure the ground cable from the battery is making a good connection. Edited July 14, 2020 by twobjshelbys Quote Link to comment Share on other sites More sharing options...
Hookhard Posted July 14, 2020 Author Report Share Posted July 14, 2020 Ok thanks,I’ll check it out. Quote Link to comment Share on other sites More sharing options...
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