New to cummins forum. Just got my first diesel 2008 dodge ram 2500. My ERS light does not come on or rpm does not change when I push +/- on shift lever, I tow alot about 7500lb. what do I need to check. and how to fix.
I have a similar issue with my 09 that i just bought, however i can get it to activate if i press the - button really hard. Give it a try it might just be a bad switch. i posted a thread on it but didn't get a single response.
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