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Home >> Lexus >> 2001 >> LS 430 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> LEXUS Navigation System >> Circuit Inspection >> 30. Touch SW on air conditioner screen does not function. >> Inspection Procedure

Inspection Procedure

  1. Display check mode. (Vehicle signal check mode: IG) 
    1. NG: Replace or repair speed sensor and wire harness. 
    2. OK: Go to next step. 
  2. Display check mode. (Touch switch check) 
    1. NG: Replace multi display. 
    2. OK: Check gateway system. (A/C ECU communication circuit) (See page DI-1363) 
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