New member, same problem. Started with rough start a few days ago, transitioned to not starting after sitting in garage over weekend not being used (allows time for battery to drain). Check engine light came on after jump starting vehicle with typical symptoms of drained battery. Checked OBD scanner and got P1DF3 so going to get checked out at dealership in several days once they're available to look at it. I will update. Oreilly Auto checked battery and said it looked fairly nominal especially for a 5 year old OEM battery.
2019 Ram 1500 Laramie, 5.7L Hemi; 73,000 miles
UPDATE 7/18/23: Went to dealership and asked them if they could evaluate the P1DF3 issue and referenced the service bulletin that is covered for certain model VIN, mine not included. After an hour and half gave truck back saying they flashed the software per the service bulletin and said the battery charge was low and also recommended replacement. I was charged $189.95 for the software update that is fully covered if under warranty (<60,000 miles/5 years, which I meet the 5 years but not the mileage) or for the specified VINs in the service bulletin. NOTE: I was never informed of the cost at any point in time and simply told before giving me keys the total bill. So basically they released software that was incorrect with the vehicle and then make customer pay $189.95 to update the software that they didn't have correct from the factory just because it is past the warrantied mileage. Needless to say not very happy with that scenario. Will update in future if problem returns. For now I have bought battery to have on hand, but not replacing to see if issue is resolved and not just mask it with a new battery.
So I just had this same issue with my 2019 LoneStar.
KevinMiller55 1st off did you authorize any diagnosis time and did they quote you on that?
Most shops ask for 1/2 to 1 hour diagnosis time on electronic issues and that’s about normal.
Being that you supplied the service bulletin for them ( which you said didn’t apply for your vin # ) this is what I wood ( I am a former service manager for Toyota and BMW and Dodge/Jeep/Chrysler and Parts and Service manager for Saturn )
If you did authorize diagnosis time you are obligated to pay that as per your signature on the repair order.
Anything ABOVE the price you authorized is on them unless they came to you and you approved further diagnostic time or the software update.
Do not EVER pay for anything you did not authorize in person or by phone.
Dealerships ( the ****ty ones ) will go ahead and do software updates and at times replace parts and charge labor without your knowledge, consent or authorization.
If they do not have a record of a phone call to you ( Date, time and who they spoke to and what was authorized noted ON the repair order or your Signature if you are present at the dealership you are NOT required to pay any additional repairs and you can refuse to pay it and ask to speak to the General Manager of the dealership or the owner.
You can even involve law enforcement if they get ****ty with you and you also have the option to sue them and in the state of New York you can contact the State DMV inspector office and file a complaint with them and depending on the circumstances and if this dealership has a history of dealing dishonesty with customers this office can pull their State inspection license and repair license and close them down.
Again, do not ever pay for ANYTHING you did not previously authorize for anything.
Now back to my issue, my truck was parked overnight with the keys in it and unlocked.
I got in it this evening and it was dead.
I jumped it with my boost pack and immediately check engine light came on for P1DF3 code which my scanner has no information on.
I am currently researching it and came to this forum to see what has been said and done about it.
I pulled the code and it was in history 2 times ( truck didn’t start on 1st attempt ) with no other codes.
Alternator is putting out 14.4 volts and battery is now back over 12 volts after driving it approximately 20 miles to ven with lights and a/c and radio on.
I just attempted to clear the code 3 times in succession with the truck off and code came back each time.
I then started it again and check engine light is out but code still present in history.