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Title: Rs6 C5 2002 error code 16985 checksum error random when the engine starts Post by: djbilbao on May 17, 2022, 12:16:34 AM hello to all I have a recurring problem for some time, I have a fault 16985 internal error checksum memory, I specify I am in stage 1 e85, I have tried several manipulations other ecu same, other flash cord Same mpps, kess, in the rosstech list it mentions low voltage, I have a new alternator but my battery which is 2 years old at most gives strange signs of voltage drop at start-up 8V and this is often where the fault appears, forcing it to be reflashed 'ecu I don't know where to look anymore I have 12.5V when stationary and 14V with the engine running, small indications the engine in some cases has trouble launching it
attached is the link of the video where we see the instrument weaken at stort hottom: 100ah or 900a of memory 公 | 2/2 | V https://youtube.com/shorts/axFWXU.1012F Title: Re: Rs6 C5 2002 error code 16985 checksum error random when the engine starts Post by: djbilbao on May 17, 2022, 12:19:55 AM I also states that there have been several attempts OBD writing, bootmode, checksum also tunerpro other soft WinOLS ditto 0 error
Title: Re: Rs6 C5 2002 error code 16985 checksum error random when the engine starts Post by: aef on May 17, 2022, 02:22:22 AM some custom code for launch control involved?
Title: Re: Rs6 C5 2002 error code 16985 checksum error random when the engine starts Post by: djbilbao on May 17, 2022, 10:45:21 AM what is curious is that I can ride smoothly 150 / 200km is variable, and a start degraded mode and error 16985
Title: Re: Rs6 C5 2002 error code 16985 checksum error random when the engine starts Post by: djbilbao on May 17, 2022, 10:47:31 AM some custom code for launch control involved? what do you mean by custom code ? cordiallyTitle: Re: Rs6 C5 2002 error code 16985 checksum error random when the engine starts Post by: IamwhoIam on May 17, 2022, 11:13:05 AM some custom code for launch control involved? On a tiptronic C5 RS6? LOL Title: Re: Rs6 C5 2002 error code 16985 checksum error random when the engine starts Post by: nyet on May 17, 2022, 11:21:00 AM good thing you posted the output of me7sum
Title: Re: Rs6 C5 2002 error code 16985 checksum error random when the engine starts Post by: prj on May 17, 2022, 04:41:32 PM Flash car with stock file, most likely your problem will disappear.
And then find someone who actually knows something about these :) Title: Re: Rs6 C5 2002 error code 16985 checksum error random when the engine starts Post by: nyet on May 17, 2022, 09:51:48 PM what do you mean by custom code ? cordially Return to stock, or find a competent tuner. Title: Re: Rs6 C5 2002 error code 16985 checksum error random when the engine starts Post by: djbilbao on May 18, 2022, 02:45:54 AM what do you mean by custom code ? cordially no launch control thx Title: Re: Rs6 C5 2002 error code 16985 checksum error random when the engine starts Post by: djbilbao on May 18, 2022, 02:47:16 AM On a tiptronic C5 RS6? LOL hello it's possible not as efficient as the new automatic gearboxes and not great for that mechanical nevertheless doableTitle: Re: Rs6 C5 2002 error code 16985 checksum error random when the engine starts Post by: djbilbao on May 18, 2022, 03:48:24 AM good thing you posted the output of me7sum hello, sorry for the delay of the me7check report I was struggling with my CMD command here is the return :-X(https://i.ibb.co/XVcsMP4/chk-nef.png) (https://ibb.co/pnYz5TP) html image online (https://fr.imgbb.com/) Title: Re: Rs6 C5 2002 error code 16985 checksum error random when the engine starts Post by: djbilbao on May 18, 2022, 07:54:21 AM Flash car with stock file, most likely your problem will disappear. I will also try but the concern is to determine if it is indeed a software problem so map or checksum or electric battery, ground ect hence my question cordially ;)And then find someone who actually knows something about these :) Title: Re: Rs6 C5 2002 error code 16985 checksum error random when the engine starts Post by: prj on May 18, 2022, 08:33:18 AM Flash to stock, 99% sure there will be no more errors.
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