[chuj123]

Hi everyone,
I'm currently retrofitting a SAS module into a 2019 MINI F56 LCI in order to enable ACC.

I bought a SAS ECU with the correct HWEL version that matches the TAL calculation in ё_5у5. I also made the wiring harness, including the FlexRay bridge connections at the BDC and the CAN connection to the KAFAS, exactly according to the wiring diagrams.

After completing the installation, it was time to bring everything online.

At first, the SAS module wasn't visible in ё_5у5, so I used Tool32 to open FlexRay Port 2. As soon as I did that, DSC and KAFAS faults appeared. After that, the SAS module became visible in ё_5у5 and I was able to code it successfully.
However, ACSM2 is still not visible in ё_5у5, even though i5тд detects all control units correctly and reports no communication faults (Only SAS communication error sometimes).

Although the SAS module is now visible and coded, I'm getting FlexRay bus errors (shown in the attached screenshots).

If I perform a FlexRay initialization in i5тд, the FlexRay ports are closed again, the SAS disappears from ё_5у5, and all FlexRay errors disappear.

Another interesting observation:

While FlexRay Port 2 is manually opened, if I unplug the SAS module, all FlexRay line errors disappear and only the "FlexRay not initialized" fault remains. As soon as I reconnect the SAS module, the FlexRay line errors immediately come back.

I've checked the wiring several times and even swapped the FlexRay wires. When swapped, the SAS module isn't detected at all, so I believe the wiring is correct.

At this point I'm running out of ideas. Is there anything else that needs to be wired, coded, or configured? Is there another Tool32 procedure that I'm missing? SAS ECU damaged?

Has anyone experienced something similar or can point me in the right direction?
Any help would be greatly appreciated. Thanks!

[alexnaoumov]

I had exactly the same problem with a MINI F60, also retrofitting SAS. I had to open all flexray ports for it to work, using the ZGW prg

[chuj123]

I had exactly the same problem with a MINI F60, also retrofitting SAS. I had to open all flexray ports for it to work, using the ZGW prg

I belive when I checked status of port all 0,1,2,3 ports was ein
Or there are more of them?

[Siki78]

Try to reset flexray
Tool32
ZGW_01.prg
steuern_reset_learn_flexray==>F5

[chuj123]

Try to reset flexray
Tool32
ZGW_01.prg
steuern_reset_learn_flexray==>F5

I tried It too
Nothing happens

[Siki78]

I hope you make a loop on A258*8B pin 29=>21 and 30=>22

[chuj123]

I hope you make a loop on A258*8B pin 29=>21 and 30=>22

Of course, in attachment you have wiring which I made

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I had exactly the same problem with a MINI F60, also retrofitting SAS. I had to open all flexray ports for it to work, using the ZGW prg

Did you have exactly same faults?

[maaii11]

ёд5у to fїж this issue. you need to upgrade vcm.

[chuj123]

ёд5у to fїж this issue. you need to upgrade vcm.

What you mean as „upgrade” VCM? Update istep?

[claw]

write current modules to VCM.

Reset flexray with tool32.
With ё5у5, on settings, tick option "update VCM after TAL Calculaion" then VO code one of this module on flexray.
After that, use i5тд to initialize flexray