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Inspection Procedure

  1. READ VALUE OF 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): 

      NORMAL CONDITION CHART

      Item Measurement Item/Range (Display) Normal Condition Diagnostic Note
      D TOUCH SENSOR Status of touch sensor front LH/ ON or OFF ON: Touch sensor is touched
      OFF: Touch sensor is not touched      		 -
      P TOUCH SENSOR Status of touch sensor front RH/ ON or OFF ON: Touch sensor is touched
      OFF: Touch sensor is not touched      		 -

      OK: 

      "ON" (screen is touched) or "OFF" (screen is not touched) appears on the tester screen. 

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

    NG: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - ELECTRICAL KEY OSCILLATOR) 
    1. Disconnect the P33 ECU connector.
    2. Disconnect the oscillator connectors.

      Standard resistance 

      CERTIFICATION ECU - ELECTRICAL KEY OSCILLATOR

      Tester Connection (Symbols) Condition Specified Condition
      P33-5 (SEL1) - o2-4 (SEL) Always Below 1 Ω
      P33-22 (SEN1) - O2-6 (SENS) Always Below 1 Ω
      P33-6 (SEL2) - n2-4 (SEL) Always Below 1 Ω
      P33-23 (SEN2) - n2-6 (SENS) Always Below 1 Ω
      P33-5 (SEL1) - Body ground Always 10 kΩ or higher
      P33-22 (SEN1) - Body ground Always 10 kΩ or higher
      P33-6 (SEL2) - Body ground Always 10 kΩ or higher
      P33-23 (SEN2) - Body ground Always 10 kΩ or higher
      Fig 1: Identifying Certification ECU And Electrical Key Oscillator Connector Terminals
      G05320690Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  3. CHECK AND REPLACE ELECTRICAL KEY OSCILLATOR (CHECK OPERATION OF OSCILLATOR) 
    1. Replace the door oscillator.
    2. Check that the entry UNLOCK function operates normally.

      OK: 

      Entry UNLOCK function operates normally. 

    NG: END (ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

    OK: Go to next step 

  4. INSPECT CERTIFICATION ECU 
    1. Reconnect the ECU and the oscillator connectors.
    2. Connect the intelligent tester to the DLC3.
    3. Turn the engine switch on (IG).
    4. Measure the voltage according to the value(s) in the table below.
      Fig 2: Identifying Certification ECU Connector Terminals
      G05320691Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard voltage 

      CERTIFICATION ECU

      Symbols (Tester Connection) Condition Specified Condition
      SEL1 (P33-5) - Body ground Move the key more than 5 m (16.4 ft) away from the front door LH 10 to 14 V
      SEL1 (P33-S) - Body ground Bring it to the outside handle Below 1 V
      SEL2 (P33-6) - Body ground Move the key more than 5 m (16.4 ft) away from the front door RH 10 to 14 V
      SEL2 (P33-6) - Body ground Bring it to the outside handle Below 1 V
      SEN1 (P33-22) - Body ground Front door LH outside handle is not held 10 to 14 V
      SEN1 (P33-22) - Body ground Front door LH outside handle is held Below 1 V
      SEN2 (P33-23) - Body ground Front door RH outside handle is not held 10 to 14 V
      SEN2 (P33-23) - Body ground Front door RH outside handle is held Below 1 V

    NG: REPLACE CERTIFICATION ECU 

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

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