I guess indicates failing or faulty Steering Angle Sensor cause C220500 is Internal fault with Steering Angle Sensor
Could also be bad ABS Module or fault in ESP or ECU wires / connectors or brake light switch or one of the huge 80 amp - 200 amp fuses in the front SAM module which is below that plastic positive + red slider thing in engine compartment near battery.
Might loose systems such as Cruise Control, Run Flat / Tyre Pressure Monitor, Eco Mode, Assist Plus and possibly even ABS.
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