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Home >> Toyota >> 2019 >> Mirai >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation System - Diagnostic Codes & Symptom Tests (1 Of 2) >> Navigation System >> DTC B1579: Voice Recognition Microphone Disconnected [01/2018 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

NOTE:
  • When replacing the radio and display receiver assembly or navigation ECU, always replace it with a new one. If a radio and display receiver assembly or navigation ECU which was installed to another vehicle is used, the following may occur:
    • A communication malfunction DTC is stored.
    • The radio and display receiver assembly or navigation ECU may not operate normally.
  • If the DCM (telematics transceiver) has been replaced, perform the DCM Activation procedure using the Techstream (w/ Manual (SOS) Switch).

    Refer to DCM ACTIVATION [01/2018 - ]