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Home >> Toyota >> 2006 >> Avalon XLS >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door Lock >> Smart Key System >> Lock Switch Circuit >> Inspection Procedure

Inspection Procedure

  1. READ VALUE ON INTELLIGENT TESTER 
    1. Connect the intelligent tester to the DLC3.
    2. Turn the engine switch on (IG).
    3. Following the display on the tester, select "DATA LIST".

      SMART KEY (Certification ECU): 

      DATA LIST

      Item Measurement Item / Range (Display) Normal Condition Diagnostic Note
      D TRIGGER SW Lock switch / ON or OFF ON: Lock switch is pushed
      OFF: Lock switch is not pushed      		 -
      P TRIGGER SW Lock switch / ON or OFF ON: Lock switch is pushed
      OFF: Lock switch is not pushed      		 -
      DR TRIGGER Lock switch rear LH / ON or OFF ON: Lock switch is pushed
      OFF: Lock switch is not pushed      		 -
      DP TRIGGER Lock switch rear RH / ON or OFF ON: Lock switch is pushed
      OFF: Lock switch is not pushed      		 -

      OK: 

      "ON" (lock switch is pressed) appears on the tester screen. 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

    NG: GO TO NEXT STEP 

  2. INSPECT LOCK SWITCH 
    1. Remove the outside handle.
    2. Disconnect the connectors.
    3. Measure the resistance according to the value(s) in the table below.

      Resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      W2-1 (TRG-) - W2-3 (TRG+) Lock switch not pushed --> Pushed 10 k or higher --> Below 1
      V2-1 (TRG-) - V2-3 (TRG+)
      Y2-1 (TRG-) - Y2-3 (TRG+)
      X2-1 (TRG-) - X2-3 (TRG+)

    NG: REPLACE OUTSIDE HANDLE 

    Fig 1: Inspecting Lock Switch
    G04379898Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    OK: GO TO NEXT STEP 

  3. CHECK WIRE HARNESS (CERTIFICATION ECU - LOCK SWITCH) 
    1. Disconnect the D39 and D40 ECU connectors.
      Fig 2: Disconnecting D39 And D40 ECU Connectors
      G04379899Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 3: Identifying Lock Switch Connector Terminals
      G04379900Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

      Resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      D39-3 (TSW1) - W2-3 (TRG+) Always Below 1
      D39-4 (TSW2) - V2-3 (TRG+) Always Below 1
      D40-25 (TSW3) - Y2-3 (TRG+) Always Below 1
      D40-26 (TSW4) - X2-3 (TRG+) Always Below 1
      D39-3 (TSW1) - Body ground Always 10 k or higher
      D39-4 (TSW2) - Body ground Always 10 k or higher
      D40-25 (TSW3) - Body ground Always 10 k or higher
      D40-26 (TSW4) - Body ground Always 10 k or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  4. CHECK WIRE HARNESS (DOOR OSCILLATOR - LOCK SWITCH) 
    1. Disconnect the door oscillator connector.
      Fig 4: Disconnecting Door Oscillator Connector
      G04379901Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 5: Identifying Lock Switch Connector Terminals
      G04379902Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

      Resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      W1-9 (TRG-) - W2-1 (TRG-) Always Below 1
      V1-9 (TRG-) - V2-1 (TRG-) Always Below 1
      Y1-9 (TRG-) - Y2-1 (TRG-) Always Below 1
      X1-9 (TRG-) - X2-1 (TRG-) Always Below 1
      W1-9 (TRG-) - Body ground Always 10 k or higher
      V1-9 (TRG-) - Body ground Always 10 k or higher
      Y1-9 (TRG-) - Body ground Always 10 k or higher
      X1-9 (TRG-) - Body ground Always 10 k or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

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