Hi, my Audi A3 instrument cluster middle section went dark. Fault code I have is 00447 Function Limitation Due to Excessive Voltage. Also 00532 Supply Voltage. Reading live data T30 reads 20 Volts, but battery reads 14 Volts when running. If engine off cluster T30 still reading 20 Volts. Disconnecting alternator still showing 20 Volt.
And also it has fault 00287 speed sensor and 00290 speed sensor rear.
Could speed sensor fault create Voltage spike or Instrument Cluster is knackered.