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Unlock Position Sensor Signal Circuit [09/2015 - ]: Procedure

  1. CHECK STEERING LOCK ACTUATOR (SLP1 VOLTAGE) 
    GTY665384Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage according to the value(s) in the table below.

      Standard voltage

      Tester Connection Condition (Steering Lock Position) Specified Condition
      L33-4 (SLP1) - L33-2 (SGND) Locked 11 to 14 V
      L33-4 (SLP1) - L33-2 (SGND) Unlocked Below 1 V

    Result:  OK

    OK 

    GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2015 - ] )

    Result:  NG

    NG 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR - MAIN BODY ECU) 
    GTY642167Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L13 main body ECU connector.
    2. Disconnect the L33 steering lock actuator connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      L13-18 (SLP) - L33-4 (SLP1) Always Below 1 Ω
      L33-4 (SLP1) - Body ground Always 10 kΩ or higher

    Result:  OK

    OK 

    REPLACE STEERING LOCK ACTUATOR 

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR