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Home >> Toyota >> 2004 >> Matrix Base, FWD, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 554 (Audio & Visual System - Diagnostics) >> Circuit Inspection >> 1. Radio And Player Cannot Be Powered. >> Inspection Procedure
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Inspection Procedure

WARNING: This page is about a different car, the 2003 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check radio and player. 

    PREPARATION:

    Disconnect the radio and player connector.

    CHECK:

    Check the voltage of terminal BU+B.

    OK:

    1. BU+B: 10 - 14 V 

    CHECK:

    Check the voltage of terminal ACC+B when the ignition switch is in ACC or ON position.

    OK:

    1. ACC+B: 10 - 14 V 

    CHECK:

    Check continuity at terminal GND.

    OK:

    1. GND: Continuity 
    1. NG : Replace or repair harness and connector. 
    2. OK : Replace radio and player (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ).