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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 B14AD-31: Front Display Screen - No signal >> Action
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DTC B14AD-31: Front Display Screen - No signal: Action

NOTE: Do Not  replace the infotainment master controller for this DTC alone
  1. Check that the front display is working, if the display is working go to step  5. If there is no display go to step 2
  2. 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 3, if the DTC is no longer set go to step  5
  3. Check the infotainment master controller software release notes to see if a repair is available and update the infotainment master controller and repeat step  2. If no software update is available go to step 4
  4. Check the interactive display module A for any internal failure Diagnostic Trouble Code(s) and follow the DTC index
  5. Check for other Diagnostic Trouble Code(s) relating to the customer concern and follow the DTC index
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