Vida CEM swapping

Post by **vtl** » 20 Apr 2023, 10:33

jamezcab wrote: ↑20 Apr 2023, 10:22 my apologies this is a lab rat i ordered. obviously incorrect

Be a man and make it a CEM!

T5Luke · Post by **T5Luke** » 20 Apr 2023, 11:13

vtl wrote: ↑20 Apr 2023, 09:54 FYI, CAN transceiver in original schematics is EOL.

Screenshot at 2023-04-20 11-53-20.png

Replacement: SN65HVD230QDR

jamezcab · Post by **jamezcab** » 20 Apr 2023, 11:38

vtl wrote: ↑20 Apr 2023, 10:33
jamezcab wrote: ↑20 Apr 2023, 10:22 my apologies this is a lab rat i ordered. obviously incorrect
Be a man and make it a CEM!

i know what your saying my friend

but an xc90 is a large ornament if i brick cem

green2man0 · Post by **green2man0** » 20 Apr 2023, 17:02

I'm in a similar spot. My power seats and cigarette lighter recently stopped working....both individual fuses are good and it seems to be a not uncommon issue related to a shared relay on the CEM.
https://modulerepairpro.com/products/05 ... cem-repair
I don't know how good they are but they are a lot cheaper price wise than Xemodex. I plan to try them out. I'm also doing valve cover gaskets (06 xc90 4.4) and waiting on a few more parts. Plan is to coordinate the best I can and have the CEM out for repair while doing valve cover gaskets and by the time the CEM is back to have the gaskets done.

myname · Post by **myname** » 21 Apr 2023, 15:54

T5Luke wrote: ↑21 Mar 2023, 04:00 The "not so good" copied dice versions, seem to have probs with the send periodic msg function which is used for prog mode. I try to do a workaround later...

have you had a chance to look at this?

T5Luke · Post by **T5Luke** » 22 Apr 2023, 04:06

How does your dice appear in device manager?

dikidera · Post by **dikidera** » 22 Apr 2023, 06:31

Oddly enough I never needed to send any periodic msgs in my S60 P2 and my custom device, in programming mode. Once the modules were all "asleep" I could do anything I wanted and I observed no changes in the car.

myname · Post by **myname** » 22 Apr 2023, 07:20

it says DiCE Hardware -> DiCE-206751@000000000000

rkam · Post by **rkam** » 22 Apr 2023, 09:18

The J2534 periodic message function was used to ensure that the FF 86 commands was sent fast enough for all modules to enter programming mode. This way it is not limited by software, operating system or computer speed.

dikidera · Post by **dikidera** » 22 Apr 2023, 09:52

So it isn't just about sending the command and ensuring all modules have received it, it's about how fast it is sent? Is this why I got an SRS Airbag DTC?

My python code for RPI basically alternated between the buses and sent the FF 86 command for a second or two, spamming basically. This worked for me, but the SRS Airbag code got triggered and could not be easily cleared. Obviously python->socketcan->mcp2515->can bus is introducing a lot of latency.

As for knock off dice, some people have had no luck getting it to even work.

https://www.swedespeed.com/threads/conn ... st-8078413

Vida CEM swapping

Re: Vida CEM swapping