Have to ask the same question I asked MiniToBe here.
https://www.northamericanmotoring.co...36#post4427736

R55 MT DME program version: 0089ST0WA00B
R56 AT DME program version: 0089SC0VA61B

Did adjustment on DSC unit and DSC sensor, both are failed. It says 'all faults concerning the DSC control unit must be worked through first using the test schedule.'

I changed back everything to R56 original ecus, now DSC throws a new error code 5DE3 - encoding error...

You have mail.

This is where i'm stuck at https://www.northamericanmotoring.co...ding-help.html

How is your progress? I stuck again and very frustrated... I used ISTA-P to program all modules, final report has VO alignment successful, $205 is not in it. but DME still read EGS and says cannot find TCM. DSC has issue now and ISTA-P failed to program it and report encoding error, what is that mean??

I am thinking to use donor R55 manual DME and CAS and key, to reprogram in ISTA-P. But I cannot find any good information online to determine if this is worth a try and how to process it. I am afraid to damage any module. DSC encoding error happened after I swapped the R55 DME & CAS at the 1st time.

I ordered an ECU and just won another one on ebay with a different part number. I'm also waiting on my Ktag to come in. Supposedly arriving sometime next week...in the meantime i got me a flooded clubman to shift my attention lol....I'll keep you posted.

Did you try swapping the JBE, FRM, Cluster...etc also is it possible that abandoned plugs are causing the issue. In other words, it would seem thethe P bus is open!

Also, I wonder what would happen if you actually connect the EGS module?

wow. how many mini you got!!! How are you going to code and match DME to the car?

I don't think swap JBE, FRM, matters. Didn't change cluster, I disconnect the wire that connects to cluster circuit board from R55, but cannot find the wire. R56 I cannot disconnect it from the circuit board, so has to disconnect from the connector, so I need to find the wire to swap the cluster.

BMW manual swap disconnects all wires to EGS, it doesn't make sense that plug into EGS will make DME thinks it's manual.

A handful

I'll copy past the eeprom using Ktag.

Could you post the link for that BMW swap you mentioned...

I don't have the link, I searched all over the places, and remember somewhere mentioned to disconnect the plugs to EGS.

I was just doing a little light reading thru the tricore docs while disassembling some code and a thought occurred to me. Some tricore ecu's have a section of memory that is designated as OTP (One Time Programming) and it got me to thinking about dealer level tools such as ISTA and INPA. So I did some more digging and sure enough information stored in a memory block designated as OTP cannot be written over by dealer level tools.

Soo.... IF the the manual/auto configuration in your dme is stored in an OTP area it would require either boot mode modification of the OTP area, installation of a new dme (dealers like this option) or replacement of the tricore chip inside the dme to accomplish. The UCB2 setting to activate OTP is in the tricore itself and replacement tricores do not have user configuration block 2 set.

Of course it's midnight right now and between coding and monster energy drinks I'm a bit loopy so maybe someone can poke some holes in my logic.

Hi Tigger, since all series of BMW had successfully done the manual swap with proper coding, also you did F56 manual swap without changing DME. Is it possible that BMW did differently for R5x only to lock the transmission type in OTP?

I swapped R55 modules (DME, CAS, FRM, SZL, JBE, key) into r56, only DME was updated VIN to match R56 VIN. Car can start with only DSC warning on the cluster, which I think is related to a different issue. I tried to update the rest r56 modules to match r55 setup in ISTA-P, but failed to update any module. Is it normal or because I changed the VIN in r55 DME?

what do you recommend to try next?

ISTA-P won't play nice if the vin in the DME and FRM do not match. I've been done that road just recently. I'd update the vin in the FRM to match the DME and give it a try again.

Oh forgot to add depending on year and model there were many E Series that used a Siemens DME up to about 2012 as I recall. The Bosch DME's started to filter in about 2006.

Leave the R55 ecu's in the R56, make sure VIN in FRM matchestje DME and both are the R56 VIN, update if necessary, check CAS as well. Alter VO from R55 to R56 then try a vehicle update.

If this doesn't do the trick I'm thinking electrical tape to cover any error indicators, or perhaps a couple of pounds of C-4.

I changed VO to removed accessories that r56 doesn't have. I updated r55 FRM to r56 vin. tried to update CAS to r56 vin but came up error message. now all modules have r56 vin except CAS. Opened ISTA-P, still read r55 vin, the measurement plan is based on CAS, and consider all other modules are replaced. I didn't execute the plan since I don't think it will work. Also curious if I drive the car with mismatch CAS/DME, will that be a problem?

As long as it starts I wouldn't think it would be a problem. Still getting any DSC errors?

Hmm... wonder if the encoding error is related to the vin mismatch or the other issue. After you updated the car did you re-adapt the EPS for steering centering?

Check your VO. DSC is 210 and ASC is 214. DSC was standard on the later S models. Tomorrow I'll check on the write limits for you.

I updated r55 VO from 210 to 214. In both r56 or r55 setup, the error can’t be fixed. In the beginning, only DSC warning light (triangle sign), after connecting to r55 DME alone, warning was gone. After connecting r55 DME and CAS, and did a programming in DSC if I remember correctly, the brake, abs and DSC all 3 light are on

I will try to swap the DSC module tomorrow, if the issue remains, I will just drive like that..

Update to all: DME AT setting has been removed by a bmw tuner. unfortunately I am not able to get information on how he made the change. Currently, the DSC/ASC, ABS & BRAKE warning are still on, I believe I screwed up when I did the testing. The tuner suggested to find a local store who has a genuine Autel to give a try. I am going to write a manual swap process in the next couple weeks based on the past 2 months experience.

Any progress on your projects?