The little yellow light that's warns def is low is stuck on . The Green bars that indicate def level are working , filled up Def and the Bars read full tank but little yellow light still on . Any one have this problem?
Yellow Low Def light
Discussion in 'Freightliner Forum' started by danny23tx, Dec 7, 2019.
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Is it throwing a code? My cascadia used to do that when i would idle alot . Never could find the problem
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No codes whatsoever. Gauge works no issues other than the tiny light .
D.Tibbitt Thanks this. -
How many key cycles have been made since it came on?? Did it get low enough to actually trigger it?
Thinking it might clear on its own if it got ran low enough to come on but I dont know the FL/DD DEF system at all. My pete just had a red warning light on the gauge when it got below 1/8 of a tank but it would go out when filled above that level.D.Tibbitt Thanks this. -
Yeah Def went low , I thought it would go away once filled. Probably the second time in 3 years it actually came on , I keep it filled most times . Might on plug Def tank and investigate once I make it home in a week.
D.Tibbitt Thanks this. -
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hook up the DL and check to see you had history fault codes related to aftertreatment that day/time. if not replace the gauge.
D.Tibbitt Thanks this. -
Cleared up today . Almost 2 months later lol .
D.Tibbitt Thanks this. -
it may come back again when weather will be hot...
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