NAVIGATION SYSTEM Radio Receiver Power Source Circuit

DTC Code DTC Name
Radio Receiver Power Source Circuit

DESCRIPTION

This circuit provides power to the radio and display receiver assembly.

WIRING DIAGRAM

E291137E02

CAUTION / NOTICE / HINT

Note:

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

  • Check that the wire harness is properly installed and does not have any sharp bends, pinching or loose connections (Click here).

PROCEDURE

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

    • *1: w/o Stop and Start System

    • *2: w/ Stop and Start System

    1. U124078E02

      Disconnect the radio and display receiver assembly connectors.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      H107-7 (GND1) - Body ground

      Always

      Below 1 Ω

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      H107-4 (+B1) - Body ground

      Always

      11 to 14 V*1

      9.5 to 14 V*2

      H107-3 (ACC1) - Body ground

      Ignition switch ACC

      11 to 14 V*1

      9.5 to 14 V*2

      H105-1 (IG) - Body ground

      Ignition switch ON

      11 to 14 V
    Table 1. Text in Illustration

    *a

    Front view of wire harness connector

    (to Radio and Display Receiver Assembly)

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    (Click here)

    REPAIR OR REPLACE HARNESS OR CONNECTOR