Home >> Land Rover >> 2023 >> Range Rover Velar HST >> Repair and Diagnosis >> General Information >> DTC Index >> Diagnostic Trouble Code Index DTC: Audio Amplifier Module (AAM) -- Range Rover Velar/L560 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - DTC: Audio Amplifier Module (AAM) (G2739084) >> B19D4-1A: Speaker #25 - Circuit resistance below threshold >> Possible Causes