Home >> Jaguar >> 2012 >> XJ Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Diagnostic Trouble Code (DTC) Index DTC: Audio Amplifier Module (AAM) -- XJ/X351 >> Diagnostic Trouble Code (DTC) Index DTC: Audio Amplifier Module (AAM) >> Description And Operation >> Audio Amplifier Module (AAM) >> B1A07-1A: Speaker #7 - Circuit resistance below threshold >> Possible Causes