NAVIGATION SYSTEM(for SD) Navigation Receiver Assembly Power Source Circuit

DESCRIPTION

This circuit provides power to the navigation receiver assembly.

WIRING DIAGRAM

A01VA3WE05

CAUTION / NOTICE / HINT

Note


  • Inspect the fuses for circuits related to this system before performing the following 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 (NAVIGATION RECEIVER ASSEMBLY - BATTERY AND BODY GROUND)


    1. A01V873C04
      *a

      Front view of wire harness connector

      (to Navigation Receiver Assembly)

      Disconnect the navigation receiver assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G137-7 (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
      G137-4 (+B1) - Body ground Always 11 to 14 V
      G137-3 (ACC1) - Body ground Ignition switch ACC 11 to 14 V
      Ignition switch off Below 1 V
      G139-1 (IG) - Body ground Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR