NAVIGATION SYSTEM (for HDD) Stereo Component Amplifier Power Source Circuit

DESCRIPTION

This is the power source circuit to operate the stereo component amplifier assembly.

WIRING DIAGRAM

A01JAT2E01

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. INSPECT STEREO COMPONENT AMPLIFIER ASSEMBLY


    1. A01JD02E02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Stereo Component Amplifier Assembly)

      Disconnect the L108 stereo component amplifier assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L108-10 (GND) - 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
      L108-5 (+B) - L108-10 (GND) Power switch off 11 to 14 V
      L108-12 (ACC) - L108-10 (GND) Power switch on (ACC) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT STEREO COMPONENT AMPLIFIER ASSEMBLY


    1. A01JD02E03
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Stereo Component Amplifier Assembly)

      Disconnect the L108 stereo component amplifier assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      L108-9 (AMP+) - L108-10 (GND)

      Power switch on (IG)

      Audio system playing

      		 8 V or higher

    NG

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - NAVIGATION RECEIVER ASSEMBLY) Click here

    OK

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

  3. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - NAVIGATION RECEIVER ASSEMBLY)


    1. A01JD02E04

      Disconnect the L108 stereo component amplifier assembly connector.

    2. A01JDBNE04

      Disconnect the L120 navigation receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L108-9 (AMP+) - L120-9 (AMP) Always Below 1 Ω
      L108-9 (AMP+) - Body ground Always 10 kΩ or higher
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Stereo Component Amplifier Assembly)
      *2

      Front view of wire harness connector

      (to Navigation Receiver Assembly)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here