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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. Display check mode. (Vehicle signal check mode: IG) 
    1. NG : Replace or repair speed sensor and wire harness (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
    2. OK : Go to next step. 
  2. Display check mode. (Touch switch check) 
    1. NG : Replace multi display (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
    2. OK : Check gateway system. (A/C ECU communication circuit) (See  GATEWAY SYSTEM - DIAGNOSIS  ) 
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