Home >> Land Rover >> 2023 >> Range Rover Evoque S >> Repair and Diagnosis >> General Information >> Specifications Index >> Diagnostic Trouble Code Index DTC: TELEMATIC Control Module (TCU) -- Range Rover EVOQUE/L551 >> Diagnostic Trouble Code Index - DTC: TELEMATIC Control Module (TCU) (G2153768) >> Description And Operation >> TELEMATIC Control Module (TCU) >> DTC B1A01-01: Speaker #1 - General Electrical Failure >> Possible Causes