Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Toyota >> 2005 >> Avalon XLS >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Smart Key System (Keyless Entry) >> 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.

      Standard: 

      Front LH side 

      DOOR OSCILLATOR FRONT LH SIDE VOLTAGE

      Tester Connection Condition Specified Condition
      U1-1 (+B) - U1-7 (GND) Always 10 to 14 V

      Front RH side 

      DOOR OSCILLATOR FRONT RH SIDE VOLTAGE

      Tester Connection Condition Specified Condition
      U2-1 (+B) - U2-7 (GND) Always 10 to 14 V
      Fig 1: Disconnecting Door Oscillator Connector
      G02977158Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Rear LH side 

      DOOR OSCILLATOR REAR LH SIDE VOLTAGE

      Tester Connection Condition Specified Condition
      U3-1 (+B) - U3-7 (GND) Always 10 to 14 V

      Rear RH side 

      DOOR OSCILLATOR REAR RH SIDE VOLTAGE

      Tester Connection Condition Specified Condition
      U4-1 (+B) - U4-7 (GND) Always 10 to 14 V
    1. NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK : Go to next step. 
  2. CHECK WIRE HARNESS (DOOR ELECTRICAL KEY OSCILLATOR - DOOR ECU) 
    1. Disconnect the D39 and D40 ECU connector.
    2. Measure the resistance between the oscillator and the certification ECU to check for an open circuit in the wire harness.

      Standard: Below 1 Ω 

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

      Standard: 10 kΩ or higher 

      HINT:

      Refer to the wiring diagram for connection of each terminal.

      Fig 2: Disconnecting D39 And D40 Certification ECU Connector
      G02977159Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 3: Disconnecting Door Oscillator Connector
      G02977160Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK : Go to next step. 
  3. PERFORM ACTIVE TEST USING HAND-HELD TESTER (CERTIFICATION ECU OUTPUT SIGNAL) 
    1. Reconnect the ECU and the oscillator connectors.
    2. Connect the hand-held tester to the DLC3.
    3. Turn the engine switch on (IG).
    4. Following the display on the tester, select the "ACTIVE TEST".

      Certification ECU: 

      CERTIFICATION ECU ACTIVE TEST

      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.

      Standard: 

      CERTIFICATION ECU FREQUENCY

      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)
      Fig 4: Identifying ECU And Oscillator Connector Terminals
      G02977161Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  
    2. 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. 

    1. NG : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  
    2. OK : END (DOOR OSCILLATOR IS DEFECTIVE) 
scientia non olet · About Mike's Workshop Manuals