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AUDIO AND VISUAL SYSTEM > Voice Guidance Circuit between Radio Receiver and Stereo Component Amplifier

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DESCRIPTION

This circuit is used when the voice switch of the steering pad switch is pushed.
Using this circuit, the radio and display receiver assembly sends signals to the stereo component amplifier assembly.

WIRING DIAGRAM


E236969E05


INSPECTION PROCEDURE

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

  1. Disconnect the radio and display receiver assembly connector.

  1. Disconnect the stereo component amplifier assembly connector.

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

    Standard Resistance:
    Tester connection
    		Condition
    		Specified condition
    L147-2 (RL+) - L143-15 (II1+)
    		Always
    		Below 1 Ω
    L147-6 (RL-) - L143-14 (II1-)
    		Always
    		Below 1 Ω
    L143-18 (SLD1) - Body ground
    		Always
    		10 kΩ or higher
    L147-2 (RL+) - Body ground
    		Always
    		10 kΩ or higher
    L147-6 (RL-) - 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)