NAVIGATION SYSTEM (for Radio and Display Type) Voice Guidance Circuit between Radio Receiver and Stereo Component Amplifier

DESCRIPTION

This circuit is used when the voice switch of the steering pad switch assembly is pushed.

Using this circuit, the radio and display receiver assembly sends signals to the stereo component amplifier assembly.

WIRING DIAGRAM

A01EYY4E18

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY)


    1. Disconnect the I153 radio and display receiver assembly connector.

    2. Disconnect the I69 stereo component amplifier assembly connector.

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

      Standard Resistance
      Tester connection Condition Specified condition
      I153-2 (RL+) - I69-15 (II1+) Always Below 1 Ω
      I153-6 (RL-) - I69-14 (II1-) Always Below 1 Ω
      I69-15 (II1+) - Body ground Always 10 kΩ or higher
      I69-14 (II1-) - Body ground Always 10 kΩ or higher
      I69-18 (SLD1) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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