Electonics problem?

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BigOldJeep

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EcoDiesel
I recently purchased a 2015 Laramie Ecodiesel with air suspension and 90,000 mi. Yesterday on my way to work (on the interstate) it started showing error codes on the dash: Service Air Suspension, Service Electonic Braking and Service Trailer Brake (or something like that). Also, the yellow stability control light came on and the cruise control kicked off. The cruise control will start (get the little white icon) but I can not set it (turn it green). Could this be an electrical problem?
 

62Blazer

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It's definitely an electrical problem and likely all of the issues are related. It's pretty common for the cruise control to become disabled when there are issues or codes with the braking system. The stability control system works by activating brakes, so if the braking system has an issue it's likely the stability control will become disables.
You need to start with a scan and see what specific codes are stored in the system.
 

RamDiver

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I recently purchased a 2015 Laramie Ecodiesel with air suspension and 90,000 mi. Yesterday on my way to work (on the interstate) it started showing error codes on the dash: Service Air Suspension, Service Electonic Braking and Service Trailer Brake (or something like that). Also, the yellow stability control light came on and the cruise control kicked off. The cruise control will start (get the little white icon) but I can not set it (turn it green). Could this be an electrical problem?

With the sudden onset of multiple notifications and/or DTCs, the SOP for our trucks would be to load test the battery with a toaster-style load tester like the $18 device from HarbourFreight.


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BigOldJeep

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I will do that. I read somewhere that some of the fuses may not be seated completely. I pushed down on all of them (quite a few moved) and my problems all went away after about 5 minutes of driving. The air suspension and cruise control work, along with all the nasty warnings are gone.
 

Jeepwalker

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Good for you. Maybe you got lucky and those (fuses) were it. But I would still get the battery load tested somewhere. Can't hurt, won't cost you anything. And if there "is" an issue you can get it replaced. Also, make sure the battery terminals are clean. :waytogo:
 
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