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Home >> Lexus >> 2001 >> LS 430 >> Repair and Diagnosis >> Electrical >> Body Electrical >> Passenger Side Junction Block (Body No. 3 ) Control System >> Circuit Inspection >> Navigation ECU Communication Circuit >> Inspection Procedure

Inspection Procedure

  1. Check the navigation ECU. 
    1. NG : Replace the navigation ECU. 
    2. OK : Go to next step. 
  2. Check wire harness and connector between navigation ECU and passenger side J/B ECU. 
    1. NG : Repair or replace wire harness or connector. 
    2. OK : Proceed to next circuit inspection shown on problem symptom table, see  PROBLEM SYMPTOMS TABLE  . 
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