AUDIO AND VISUAL SYSTEM (for Radio and Display Type with Intuitive Parking Assist System) Radio Receiver Power Source Circuit

DESCRIPTION

This is the power source circuit to operate the navigation ECU sub-assembly.

WIRING DIAGRAM

A01HQEWE23

INSPECTION PROCEDURE

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, BODY GROUND)


    1. 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
      I64-7 (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
      I64-4 (+B1) - I64-7 (GND1) Always 11 to 14 V
      I64-3 (ACC1) - I64-7 (GND1) Ignition switch ACC 11 to 14 V
      I67-1 (IG) - I64-7 (GND1) Ignition switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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