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Home >> Land Rover >> 2020 >> Range Rover SVAutobiography Dynamic >> Repair and Diagnosis >> Quick Lookups >> Common Specs & Procedures >> Diagnostic Trouble Code Index DTC: Infotainment Master Controller/Infotainment Slave Controller (IMC/ISC) -- Range Rover/L405 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - DTC: Infotainment Master/Slave Controller (IMC/ISC) (G2385771) >> DTC B14AC-11: Audio Amplifier Wake-up/Enable Control - Circuit short to ground >> Action
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DTC B14AC-11: Audio Amplifier Wake-up/Enable Control - Circuit short to ground: Action

  1. Using the Jaguar Land Rover approved diagnostic equipment, perform routine - On Demand Self Test (0x0202) and read the Diagnostic Trouble Code(s). If the DTC is set go to step 2, if the DTC is no longer set go to step  3
  2. Refer to the appropriate system wiring diagrams and check the audio amplifier module wake up circuit for short circuit to ground. Repair the wiring harness as necessary. Clear the Diagnostic Trouble Code(s) and retest
  3. Using the Jaguar Land Rover approved diagnostic equipment, check the infotainment master controller and audio amplifier module software release notes to see if a repair is available and update the infotainment master controller and audio amplifier module. Clear the Diagnostic Trouble Code(s) and retest