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Inspection Procedure

  1. CHECK UN-LOCK WARNING SWITCH ASSY 
    1. Disconnect the key unlock warning switch connector.
    2. Check the continuity between the terminals of the key unlock warning switch connector, as shown in the illustration and table.

      Standard: 

      TERMINAL SPECIFIED CONDITION

      Terminal No. Switch position Specified condition
      1 <=> 2 Push (Key inserted) Continuity
      1 <=> 2 Free (Key removed) No continuity
      Fig 1: Disconnecting Key Unlock Warning Switch Connector
      G02861152Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE UN-LOCK WARNING SWITCH ASSY 
    2. OK: GO TO NEXT STEP. 
  2. CHECK WIRE HARNESS (TVIP ECU <=> UNLOCK WARNING SWITCH) 
    1. Disconnect the TVIP ECU and key unlock warning switch connectors.
    2. Check the continuity between the terminals of the TVIP ECU connectors and unlock warning switch connector, as shown in the illustration and table.

      Standard: 

      TERMINAL SPECIFIED CONDITION

      Symbols (Terminal No.) (TVIP ECU <=> Unlock warning switch) Specified condition
      KSW (T3-12) <=> U1-2 Continuity
      Fig 2: Disconnecting TVIP ECU And Key Unlock Warning Switch Connectors
      G02861153Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR 
    2. OK: GO TO NEXT STEP. 
  3. CHECK WIRE HARNESS (KEY UNLOCK WARNING SWITCH <=> BODY GROUND) 
    1. Disconnect the key unlock warning switch connector.
    2. Check the continuity between the terminal of the key unlock warning switch connector and the body ground, as shown in the illustration and table.

      Standard: 

      TERMINAL SPECIFIED CONDITION

      Terminal No. (Key unlock warning SW <=> Body ground) Specified condition
      U1-1 <=> Body ground Continuity
      Fig 3: Identifying Wire Harness (Key Unlock Warning Switch - Body Ground)
      G02861154Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR 
    2. OK: CHECK AND REPLACE TVIP ECU (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
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