NAVIGATION SYSTEM, Diagnostic DTC:B1579

DTC Code DTC Name
B1579 Voice Recognition Microphone Disconnected

DESCRIPTION

This DTC is stored when a microphone connection detection signal line is disconnected.

DTC Code DTC Detection Condition Trouble Area
B1579 Telephone microphone signal is lost.

  • Radio and display receiver assembly

  • Harness or connector

WIRING DIAGRAM

A003TEHE01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - BODY GROUND)


    1. Disconnect the radio and display receiver assembly connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      E128-6 (SNS2) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here