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Home >> Lexus >> 2013 >> IS 250 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Smart Access System (Keyless Entry) (Diagnostic Codes & Circuit Tests) >> Smart Access System With Push-Button Start >> Circuit Tests >> Door Oscillator Circuit >> Procedure

Door Oscillator Circuit: Procedure

  1. INSPECT ELECTRICAL KEY OSCILLATOR 
    1. Disconnect the oscillator connectors.
      GTY119514Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage according to the value(s) in the table below.

      Standard voltage

      Front LH side 

      Front RH side 

      Tester Connection (Symbols) Condition Specified Condition
      o2-1 (+B) - o2-7 (GND) Always 10 to 14 V
      Tester Connection (Symbols) Condition Specified Condition
      n2-1 (+B) - n2-7 (GND) Always 10 to 14 V

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (ELECTRICAL KEY OSCILLATOR - CERTIFICATION ECU) 
    1. Disconnect the P33 ECU connector.
      GTY119515Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance

      Tester Connection (Symbols) Condition Specified Condition
      P33-33 (CLG1) - o2-10 (CLG) Always Below 1 Ω
      P33-34 (CG1B) - o2-5 (CLGB) Always Below 1 Ω
      P33-35 (CLG2) - n2-10 (CLG) Always Below 1 Ω
      P33-36 (CG2B) - n2-5 (CLGB) Always Below 1 Ω
      P33-33 (CLG1) - Body ground Always 10 kΩor higher
      P33-34 (CG1B) - Body ground Always 10 kΩor higher
      P33-35 (CLG2) - Body ground Always 10 kΩor higher
      P33-36 (CG2B) - Body ground Always 10 kΩor higher

    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 LOCK/UNLOCK function operates normally.

      OK

      Entry LOCK/UNLOCK function operates normally.

    OK → END (ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

    NG: Go to next step 

  4. PERFORM ACTIVE TEST USING TECHSTREAM (CERTIFICATION ECU OUTPUT SIGNAL) 
    1. Reconnect the ECU and the oscillator connectors.
      GTY119509Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the Techstream to the DLC3.
    3. Turn the engine switch on (IG).
    4. Following the display on the tester, select the "Active Test".
      SMART KEY (CERTIFICATION ECU):

      Tester Display 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

      Tester Connection (Symbols) Condition Specified condition
      P33-33 (CLG1) - P33-34 (CG1B) During ACTIVE TEST Frequency is generated (higher than 0 Hz)
      P33-35 (CLG2) - P33-36 (CG2B) During ACTIVE TEST Frequency is generated (higher than 0 Hz)

    NG → REPLACE CERTIFICATION ECU 

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

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