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Home >> Lexus >> 2003 >> RX 300 AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> LEXUS Navigation System - Diagnosis >> Circuit Inspection >> 21. Driving direction is opposite to moving direction of vehicle position mark. >> Inspection Procedure

Inspection Procedure

  1. Navigation check mode (vehicle signal check mode REV). 
    1. OK: Replace the navigation ECU. 
    2. NG: Go to next step. 
  2. Check the navigation ECU. 

    CHECK: 

    Check terminal REV.

    OK: 

    REV: See " NAVIGATION ECU  " of "TERMINAL OF ECU". 

    1. OK: Replace the navigation ECU. 
    2. NG: Replace or repair wire harness. 
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