From Ross-Tech Wiki
B2000 - Control Module: Defective
- Malfunction Indicator Light (MIL) ON
- Control Module faulty
- Check/Replace Control Module
- When found in an Airbag Control Module, do not attempt to repair the Control Module but replace it with a proper new Part instead. The Installation of used Airbag Components as well as repaired ones is explicitly forbidden by the Manufacturer Specifications found in the Factory Repair Manual. There are Companies offering the repair of Airbag Control Modules which will violate said Manufacturer Specifications. Ross-Tech will not assist with the Installation of used or repaired Airbag Control Modules.
- Instrument Cluster
- This fault is common in Instrument Clusters immediately after third party tools were used to match keys. If the Instrument Cluster is non-functional with this DTC stored it should be replaced.