Home >> Land Rover >> 2015 >> LR4 HSE, AWD >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Audio Amplifier Module (AAM) -- LR4/L319 >> Diagnostic Trouble Code Index DTC: Audio Amplifier Module (AAM) >> Description And Operation >> DTC B128A-11: Speaker #13 - Circuit short to ground >> Possible Causes