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

DTC Code DTC Name
Navigation Receiver Assembly Power Source Circuit

DESCRIPTION

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

WIRING DIAGRAM

E291565E01

CAUTION / NOTICE / HINT

Note:

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

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU SUB-ASSEMBLY - BATTERY AND BODY GROUND)

    1. E256516C06

      *a

      Front view of wire harness connector

      (to Navigation ECU Sub-assembly)

      Disconnect the navigation ECU sub-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) - G137-7 (GND1)

      Always

      11 to 14 V

      G137-3 (ACC1) - G137-7 (GND1)

      Engine switch on (ACC)

      11 to 14 V

      G139-1 (IG) - G137-7 (GND1)

      Engine switch on (IG)

      11 to 14 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