NAVIGATION SYSTEM RDS-TMC Signal Circuit between Radio Receiver and Navigation ECU

DESCRIPTION

Traffic information received by the radio receiver is transmitted to the navigation ECU via this circuit.

If an open or short occurs in this circuit, RDS-TMC information will not be updated or the RDS-TMC will not operate normally.

WIRING DIAGRAM

A0161JQE01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - RADIO RECEIVER)


    1. A0161DPE07

      Disconnect the multi-display connector and radio receiver connector.

    2. A0160URE05

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J63-4 (CMP+) - J50-16 (CMP+) Always Below 1 Ω
      J63-5 (CMP-) - J50-15 (CMP-) Always Below 1 Ω
      J63-4 (CMP+) - Body ground Always 10 kΩ or higher
      J63-5 (CMP-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A01633EE06

      Disconnect the navigation ECU connector and multi-display connector.

    2. A0161Y3E06

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      p1-12 (CMO-) - p2-10 (CMP-) Always Below 1 Ω
      p1-13 (CMO+) - p2-11 (CMP+) Always Below 1 Ω
      p1-12 (CMO-) - Body ground Always 10 kΩ or higher
      p1-13 (CMO+) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Click here