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Home >> Toyota >> 2005 >> Prius >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Smart Key Entry System (Keyless Entry) (Diagnostics) >> Smart Back Door Unlock Function Does Not Operate (Smart Key Is Outside Back Door) >> Inspection Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Inspection Procedure

  1. CHECK SMART DOOR LOCK AND UNLOCK OPERATION 
    1. Check that the smart door lock and unlock function operates normally.

      OK: Smart door lock and unlock function operates normally. 

    1. NG: OTHER PROBLEM (See  PROBLEM SYMPTOMS TABLE   ) 
    2. OK: GO TO NEXT STEP 
  2. READ DATA LIST (BACK DOOR LOCK SWITCH) 
    1. Connect the hand-held tester (with CAN VIM) to the DLC3.
    2. Turn the power switch from OFF to ON (IG) and press the hand-held tester main switch ON.
    3. Select the item below in the DATA LIST and read the displays on the hand-held tester.

      Smart key ECU: 

      DATA LIST (SMART KEY ECU)

      Item Measurement/Display (Range) 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 is pushed) appears on the screen. 

    1. NG: Go to STEP3 
    2. OK: GO TO NEXT STEP 

      Go to STEP  5 

  3. INSPECT BACK DOOR LOCK SWITCH (See  INSPECTION   ) 
    1. NG: REPLACE BACK DOOR LOCK 
    2. OK: GO TO NEXT STEP 
  4. CHECK WIRE HARNESS (SMART KEY ECU ASSY - 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: 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      S11-8 (TSW6)-L4-3 Below 1 Ω
      L4-4 - Body ground Below 1 Ω
      Fig 1: Identifying Wire Harness (Smart Key ECU Assembly - Back Door Lock Switch And Body Ground)
      G02617607Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: GO TO NEXT STEP 
  5. INSPECT ELECTRICAL KEY ANTENNA (REAR) (See  INSPECTION   ) 
    1. NG: REPLACE ELECTRICAL KEY ANTENNA (REAR) 
    2. OK: GO TO NEXT STEP 
  6. CHECK WIRE HARNESS (LUGGAGE ELECTRICAL KEY OSCILLATOR (OUTER) - ELECTRICAL KEY ANTENNA (REAR)) 
    1. Disconnect the L7 oscillator connector.
    2. Disconnect the E10 ECU connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard: 

      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
      Fig 2: Identifying Wire Harness (Luggage Electrical Key Oscillator (Outer) - Electrical Key Antenna (Rear))
      G02617608Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. 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 resistance and voltage of the wire harness side connector.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      L7-1 (+B) - Body ground 10 to 14V
      L7-8 (GND) - Body ground Below 1 Ω
      Fig 3: Identifying Wire Harness (Luggage Electrical Key Oscillator (Outer) - Body Ground)
      G02617609Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: GO TO NEXT STEP 
  8. PERFORM ACTIVE TEST (LUGGAGE ELECTRICAL KEY OSCILLATOR (OUTER)) 
    1. Connect the hand-held tester (with CAN VIM) to the DLC3.
    2. Turn the power switch from OFF to ON (IG) and press the hand-held tester main switch ON.
    3. Select the item below in the ACTIVE TEST and then check that the oscillator (outer) operates.

      Smart key ECU: 

      ACTIVE TEST (SMART KEY ECU)

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

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

    1. NG: Go to STEP9 
    2. OK: GO TO NEXT STEP 

      REPLACE SMART KEY ECU ASSY 

  9. CHECK LUGGAGE ELECTRICAL KEY OSCILLATOR (OUTER) 
    1. Remove the oscillator.
    2. Measure the frequency of the connector.

      Standard: 

      Fig 4: Tester Connection Specified Condition Chart
      G02617610Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 5: Identifying Luggage Electrical Key Oscillator (Outer)
      G02617611Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE LUGGAGE ELECTRICAL KEY OSCILLATOR (OUTER) 
    2. OK: GO TO NEXT STEP 
  10. CHECK WIRE HARNESS (SMART KEY ECU ASSY - 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: 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      S11-39 (CLG8) - L7-4 (CLG) Below 1 Ω
      Fig 6: Identifying Wire Harness (Smart Key ECU Assembly - Luggage Electrical Key Oscillator (Outer))
      G02617612Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: GO TO NEXT STEP 

      REPLACE SMART KEY ECU ASSY 

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