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Home >> Toyota >> 2004 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 858 (LEXUS Navigation System - Diagnosis) >> Circuit Inspection >> 13. MAP screen display does not appear. (Disc Caution screen does not change.) >> Inspection Procedure
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Inspection Procedure

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. Take appropriate measures according to caution screen (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
    1. OK : Normal. 
    2. NG : Go to next step. 
  2. Check MAP DISC visually. 
    1. NG : Replace MAP DISC. 
    2. OK : Replace navigation ECU (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
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