Keffer inc Posted January 10, 2013 Share Posted January 10, 2013 I own a 1994 CH613 with a 350 engine & drive at work a 1996 CH613, both with the older square dash panels. I just read though, if on a newer truck, you can read a trouble code by counting the lightning bolt flashes. Can this be done on older CH models like mine? Thanks Quote Link to comment https://www.bigmacktrucks.com/topic/29290-ch-checking-engine-codes-wo-reader/ Share on other sites More sharing options...
Keffer inc Posted January 10, 2013 Author Share Posted January 10, 2013 Never mind, after lots of research, I learned if you turn off cruise control and the hold the set/resume button it will flash the computer code using the electronic malfunction light. Just in case someone else was wondering. Quote Link to comment https://www.bigmacktrucks.com/topic/29290-ch-checking-engine-codes-wo-reader/#findComment-156460 Share on other sites More sharing options...
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