NAVIGATION SYSTEM Microphone Circuit between Multi-display and Navigation ECU

DESCRIPTION

This circuit sends a microphone signal from the multi-display to the navigation ECU.

WIRING DIAGRAM

A015YS2E01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - NAVIGATION ECU)


    1. A01633EE04

      Disconnect the multi-display connector and navigation ECU connector.

    2. A0162DRE02

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      p1-5 (MCO+) - p3-3 (MIC+) Always Below 1 Ω
      p1-4 (MCO-) - p3-5 (MIC-) Always Below 1 Ω
      p1-5 (MCO+) - Body ground Always 10 kΩ or higher
      p1-4 (MCO-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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