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Home › Toyota › 2007 › Prius Base › Repair and Diagnosis › Body & Frame › Door Locks › Door Lock › Smart Key System › Back Door Entry Unlock Function does not Operate › Inspection Procedure

Inspection Procedure

  1. CHECK ENTRY LOCK AND UNLOCK OPERATION 
    1. Check that the entry lock and unlock functions operate normally.

      OK : Entry lock and unlock functions operate normally. 

    NG : GO TO PROBLEM SYMPTOMS TABLE 

    OK : GO TO NEXT STEP 

  2. READ VALUE OF INTELLIGENT TESTER (BACK DOOR LOCK SWITCH) 
    1. Check the DATA LIST for proper functioning of the back door lock switch.

      Certification ECU 

      CERTIFICATION ECU DATA LIST

      Item Measurement Item / Range (Display) Normal Condition Diagnostic Note
      TR / B-DOOR LOCK Trunk / Back-door lock switch /
      ON or OFF      		 ON: Back door lock switch is pushed
      OFF: Back door lock switch is not pushed      		 -

      OK : ON (back door lock switch is pushed) appears on the screen. 

    OK : Go to step   5 

    NG : GO TO NEXT STEP 

  3. INSPECT BACK DOOR OPENER SWITCH 
    1. Disconnect the L4 switch connector.
    2. Measure the resistance of the switch.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      1 - 2 Not pushed (OFF) 10 kΩ or higher
      1 - 2 Pushed (ON) Below 1 Ω

    NG : REPLACE BACK DOOR LOCK 

    Fig 1: Identifying Back Door Opener Switch Connector Terminal
    G04476131Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : GO TO NEXT STEP 

  4. CHECK WIRE HARNESS (CERTIFICATION ECU - BACK DOOR LOCK SWITCH AND BODY GROUND) 
    1. Disconnect the S11 ECU connector.
    2. Disconnect the L4 switch connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      S11-8 (TSW6) - L4-3 Below 1 Ω
      L4-4 - Body ground Below 1 Ω

    NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

    Fig 2: Identifying S11 ECU And L4 Switch Connector Terminal
    G04476132Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : REPLACE CERTIFICATION ECU 

  5. INSPECT ELECTRICAL KEY ANTENNA (LUGGAGE) 
    1. Measure the resistance of antenna.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      1 (ANT2) - 2 (ANT1) Back door lock switch pushed Below 1 Ω
      Back door lock switch not pushed 10 kΩ or higher

    NG : REPLACE ELECTRICAL KEY ANTENNA (LUGGAGE) 

    Fig 3: Identifying Electrical Key Antenna Connector Terminal
    G04476133Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : GO TO NEXT STEP 

  6. CHECK WIRE HARNESS (LUGGAGE ELECTRICAL KEY OSCILLATOR (OUTER) - ELECTRICAL KEY ANTENNA (LUGGAGE)) 
    1. Disconnect the L7 oscillator connector.
    2. Disconnect the E10 antenna connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      L7-6 (ANT1) - E10-2 (ANT1) Below 1 Ω
      L7-7 (ANT2) - E10-1 (ANT2) Below 1 Ω

    NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

    Fig 4: Identifying L7 Oscillator And E10 Antenna Connector Terminal
    G04476134Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : GO TO NEXT STEP 

  7. CHECK WIRE HARNESS (LUGGAGE ELECTRICAL KEY OSCILLATOR (OUTER) - BODY GROUND) 
    1. Disconnect the L7 oscillator connector.
    2. Measure the voltage of the wire harness side connector.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      L7-1 (+B) - Body ground 10 to 14 V
    3. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      L7-8 (GND) - Body ground Below 1 Ω

    NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

    Fig 5: Identifying L7 Oscillator Connector Terminal
    G04476135Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : GO TO NEXT STEP 

  8. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (LUGGAGE ELECTRICAL KEY OSCILLATOR (OUTER)) 
    1. Select the ACTIVE TEST, use the intelligent tester to generate a control command, and then check that the oscillator (outer) operates.

      Certification ECU 

      CERTIFICATION ECU ACTIVE TEST

      Item Test Details Diagnostic Note
      BDOOR TRNSMTTR Back door outer transmitter
      ON / OFF      		 -

      OK : When key is brought close to luggage compartment door, oscillator (outer) is turned ON and indicator on key illuminates. 

    OK : REPLACE CERTIFICATION ECU 

    NG : GO TO NEXT STEP 

  9. CHECK LUGGAGE ELECTRICAL KEY OSCILLATOR (OUTER) (CLG VOLTAGE) 
    1. Remove the oscillator but do not disconnect its connector.
    2. Measure the voltage of the connector.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      L7-4 (CLG) - Body ground Back door lock switch OFF Below 1 V
      Back door lock switch ON Alternating between 5 V and below 1 V

    NG : REPLACE LUGGAGE ELECTRICAL KEY OSCILLATOR (OUTER) 

    Fig 6: Identifying Luggage Electrical Key Oscillator Connector Terminal
    G04476136Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : GO TO NEXT STEP 

  10. CHECK WIRE HARNESS (CERTIFICATION ECU- LUGGAGE ELECTRICAL KEY OSCILLATOR (OUTER)) 
    1. Disconnect the S11 ECU connector.
    2. Disconnect the L7 oscillator connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      S11-39 (CLG8) - L7-4 (CLG) Below 1 Ω

    NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

    Fig 7: Identifying S11 ECU And L7 Oscillator Connector Terminal
    G04476137Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : REPLACE CERTIFICATION ECU 

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