Join Date: Oct 2017
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Well, here it is 8 months later and another bout of Service the ETC warning light popping on and off. My wife and I were in Nashville this past week and temps got down into the 50's a couple of days, and 40's at night. Once again, while sitting at a stoplight, the Service ETC light came on and after a couple of seconds went back off. It did this every now and then throughout the days when the temps were in the 50's, but once they warmed back up, no problems. We towed our 5th wheel the 6-7 hours back home with no issues, no warning light, nothing. I had to be in Chicago overnight on Monday/Tuesday, so I dropped the truck off at a diesel repair shop so he could check for codes, or anything else that might indicate a problem. He called me back tonight and advised he could not find anything. The light did not come on while he had his scanner hooked up to it. He took the truck out for a drive and mimicked stopping at a stoplight more than once, but the light did not show up. Current temperature is 51 degrees. He could not find ANY codes stored, except for one which probably activated when I replaced the batteries last year. Could it have something to do with the brake? Maybe a damaged wire somewhere that is only affected when the temps are cold? The mystery continues!
2013 Ram 2500 Laramie LH
85,000 miles on stock 6.7L Cummins