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Home >> Lexus >> 2005 >> SC 430 >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Lock Control System - Diagnostics >> Key Confinement Prevention Function Does Not Work Properly (Unlock Warning Switch Circuit) >> Inspection Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Inspection Procedure

  1. READ DATA LIST 
    1. Check the DATA LIST for proper functioning of the unlock warning switch.

      Transponder key ECU assy: 

      ITEM DIAGNOSTIC NOTE

      Item Measurement Item/Display (Range) Normal Condition Diagnostic Note
      KEY SW Key unlock warning switch signal /ON or OFF ON: Key is in IG key cylinder
      OFF: No key is in IG key cylinder      		 -
    1. NG: Go to step   2 
    2. OK: Go to  PROBLEM SYMPTOMS TABLE  
  2. INSPECT UNLOCK WARNING SWITCH ASSY 
    1. Remove the unlock warning switch.
    2. Measure the resistance of the switch.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Switch Condition Specified Condition
      1 - 2 Not pushed 10 k ohms or higher
      1 - 2 Pushed Below 1 ohms
      Fig 1: Removing Unlock Warning Switch
      G02956922Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE UNLOCK WARNING SWITCH ASSY 
    2. OK: Go to  PROBLEM SYMPTOMS TABLE  
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