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      11-10-2021, 08:56 AM   #88
polarbmw
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Drives: e84 x1
Join Date: Oct 2021
Location: San Diego

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Quote:
Originally Posted by vilord View Post
There are no coder/scanner tools that work directly without the custom BMW software to do VO coding.

You should be able to do this part with bimmercode expert mode.
1. Unplug the RDC module
2. Take a backup of each of the 3 modules (DSC, KOMBI, CIC)
3. Use expert mode to change all the below
4. Power off and restart the car, go to your CIC flat tire monitor screen and reset, then drive around for about a mile

CIC module:
This makes the CIC show the correct flat tire monitor instead of the tire pressure monitor, and allows you to tell the DSC to reset it
RPA_CIC: aktiv
RDC: nicht_aktiv
RDC_SAFETY: nicht_aktiv
For a CCC car, ignore the above, and set RDC_CCC: nicht_aktiv on the CAPPL module.

KOMBI module:
This makes the flat tire icon respond to the DSC saying a tire is flat, instead of expecting the RDC module to say it, and in non-CIC cars, it makes it so the flat tire reset works
RDC_ALIVE: nicht_aktiv
MMI_ENA_RPA_RDC: aktiv
RDC_VERBAUT: nicht_aktiv
DSC_MIT_RPA_CC: aktiv
RDC_DISP_SWITCH: nicht_aktiv

DSC module (XDSC or BDSC):
This turns on the flat tire monitoring on the DSC. Without this change, nothing will be monitored
AUSSTATTUNG_RPA: aktiv

For a non-CIC/non-CCC car, one of the KOMBI settings might be wrong, but I don't have a non-CIC car anymore to test with.

DSC is the antilock brake module, and also handles cruise control on some cars. It can monitor for a flat tire by noticing that one wheel is turning faster than the others.

It is possible there is an additional setting change that isn't listed here, in which case it might not work. Just put everything back and restore from backups if that is the case.

If you bring in your car for dealer service they might reset one of these settings back to factory default. Without the VO change, a factory default will wipe out the changes. VO change is the factory way to *change* the factory defaults for the car.
vilord thank you for the info. I will order the Veepeak OBD scan tool from Amazon and download bimmercode and give this a shot. Thanks again friend!
Appreciate 0