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

DESCRIPTION

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

WIRING DIAGRAM

A01CYF0E01

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. A01CYPQC06
      *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