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Home >> Toyota >> 2007 >> Avalon Limited >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door Lock >> Smart Key System >> Door Oscillator Circuit >> Inspection Procedure

Inspection Procedure

  1. INSPECT DOOR OSCILLATOR 
    1. Disconnect the oscillator connectors.
    2. Measure the voltage according to the value(s) in the table below.

      Voltage: 

      Front LH side 

      VOLTAGE CHART

      Tester Connection Condition Specified Condition
      W1-1 (+B) - W1-7 (GND) Always 10 to 14 V

      Front RH side 

      VOLTAGE CHART

      Tester Connection Condition Specified Condition
      V1-1 (+B) - V1-7 (GND) Always 10 to 14 V

      Rear LH side 

      VOLTAGE CHART

      Tester Connection Condition Specified Condition
      Y1-1 (+B) - Y1-7 (GND) Always 10 to 14 V

      Rear RH side 

      VOLTAGE CHART

      Tester Connection Condition Specified Condition
      X1-1 (+B) - X1-7 (GND) Always 10 to 14 V
    Fig 1: Identifying Door Oscillator Connectors
    G05006051Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: Go to Next Step 

  2. CHECK WIRE HARNESS (DOOR ELECTRICAL KEY OSCILLATOR - DOOR ECU) 
    1. Disconnect the D39 and D40 ECU connector.
      Fig 2: Identifying D39 And D40 ECU Connector
      G05006052Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance between the oscillator and the certification ECU to check for an open circuit in the wire harness.

      Resistance: 

      Below 1 Ω 

    3. Measure the resistance between the oscillator and the certification ECU to check for an short circuit in the wire harness.

      Resistance: 

      10 kΩ or higher 

      HINT:

      Refer to the wiring diagram for connection of each terminal.

      Fig 3: Identifying Door Oscillator Connectors
      G05006053Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: Go to Next Step 

  3. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (CERTIFICATION ECU OUTPUT SIGNAL) 
    1. Reconnect the ECU and the oscillator connectors.
    2. Connect the intelligent tester to the DLC3.
    3. Turn the engine switch on (IG).
    4. Following the display on the tester, select the "ACTIVE TEST".
      Fig 4: Identifying D39 And D40 Connectors Terminals
      G05006054Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Certification ECU: 

      ECU REFERENCE CHART

      Item Vehicle Condition / Test Details
      D TRANSMITTER Door Oscillator ON / OFF
      P TRANSMITTER Door Oscillator ON / OFF
    5. Measure the frequency according to the value(s) in the table below.

    OK 

    FREQUENCY CHART

    Tester Connection Condition Specified Condition
    D39-33 (CLG1) - D39-34 (CG1B) During ACTIVE TEST Frequency is generated (higher than 0 Hz)
    D39-35 (CLG2) - D39-36 (CG2B) During ACTIVE TEST Frequency is generated (higher than 0 Hz)
    D40-8 (CLG3) - D40-9 (CG3B) During ACTIVE TEST Frequency is generated (higher than 0 Hz)
    D40-10 (CLG4) - D40-11 (CG4B) During ACTIVE TEST Frequency is generated (higher than 0 Hz)

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

    NG: Go to Next Step 

  4. REPLACE DOOR OSCILLATOR (CHECK OPERATION OF DOOR OSCILLATOR) 
    1. Replace the door oscillator.
    2. Check that the entry LOCK / UNLOCK function operates normally.

      OK: 

      Entry LOCK / UNLOCK function operates normally. 

    NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  . 

    OK: END (DOOR OSCILLATOR IS DEFECTIVE) 

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