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Diagnostic Trouble Code Definitions

LEXUS LINK SYSTEM DIAGNOSTIC TROUBLE CODES

DTC No. Circuit Inspection Trouble Area
No DTC System OK  
DTC 1  GPS antenna failure
  • GPS antenna
  • Mayday ECU
  • Wire harness
DTC 2  Button module failure
  • Mayday switch
  • Mayday ECU
  • Wire harness
DTC 3  Transceiver failure
  • Transceiver
  • Mayday ECU
  • Wire harness
DTC 4:  Mayday ECU failure Mayday ECU
DTC 5  Back-up battery failure
  • Back-up battery
  • Mayday ECU
  • Wire harness
DTC 6  Loss of BEAN communication
  • Accessory bus buffer
  • Mayday ECU
  • Wire harness
NOTE: After all of the instruction messages have been provided, the voice of "Diagnostic complete" follows.