RDC Module need coding when replaced. Fact is, it does need to be set to the car and can be done with NCSexpert and Inpa D-can cable.
If you have a RDC module go bad and just swap the module for a new one, the car will not communicate with the module and stay deactivated with the warnings on the dash and if you have it, in the CIC.
when you replace the module NCSexpert will not be able to communicate with it.
You must do a SG-Reset and then the car will be able to communicate with it. Once the Module (SG-reset) is initialized you will be able to reset the TPMS/RDC in the CIC or on the OBC and read the module in NCSexpert. Once reset, start to drive and the car will initialize the module and after a short drive (2 blocks for me) the OBC/CIC will give the check tire pressure message and allow a full reset of the TPMS system.
Test reports: TPMS RDC Module Factory Reset for E90
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