LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2019 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 19 (Automatic Transmission (U660F) - Diagnostic Codes & Circuit Tests) >> Automatic Transaxle System >> DTC P0724: Brake Switch "B" Circuit High [12/2013 - 11/2016] >> Procedure

DTC P0724: Brake Switch "B" Circuit High [12/2013 - 11/2016]: Procedure

WARNING: This page is about a different car, the 2016 Toyota Highlander, 2015 Toyota Highlander, and 2014 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. READ VALUE USING DATA LIST (STP SIGNAL) 

    HINT: 

    Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

    NOTE:

    In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

    1. Turn the ignition switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the ignition switch to ON.
    4. Turn the Techstream on.
    5. Enter the following menus: Powertrain / ECT / Data List.
    6. According to the display on the Techstream, read the Data List.

      Powertrain > ECT > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Stop Light Switch Stop light switch status ON or OFF Brake pedal is
      • ON: Depressed
      • OFF: Released
      		 -

      Powertrain > ECT > Data List 

      Tester Display
      Stop Light Switch

      OK

      On the Techstream screen, ON or OFF is displayed accordingly.

      NOTE:

      In the table above, the conditions listed under "Normal Condition" are reference conditions. Do not depend solely on these reference conditions when deciding whether a part is faulty.

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    CHECK FOR INTERMITTENT PROBLEMS 

    Result:  2

    NG 

    See step  2

  2. CHECK STOP LIGHT SWITCH ASSEMBLY INSTALLATION 
    1. Check the stop light switch assembly installation.

      Refer to INSTALLATION [12/2013 - ]

      OK

      Stop light switch assembly is installed correctly.

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    SECURELY REINSTALL STOP LIGHT SWITCH ASSEMBLY 

    Result:  1

    OK 

    See step  3

  3. INSPECT STOP LIGHT SWITCH ASSEMBLY 
    1. Inspect the stop light switch assembly.

      Refer to INSPECTION [12/2013 - 11/2016]

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    REPLACE STOP LIGHT SWITCH ASSEMBLY. Refer to  COMPONENTS [12/2013 - ] 

    Result:  1

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - TCM) 
    1. Install the stop light switch assembly.
      GTY425120Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to TCM)
    2. Connect the stop light switch connector.
    3. Disconnect the TCM connector.
    4. Measure the voltage according to the value(s) in the table below when the brake pedal is depressed and released.

      Standard Voltage

      Tester Connection Condition Specified Condition
      C3-12 (STP) - Body ground Brake pedal is depressed 7.5 to 14 V
      C3-12 (STP) - Body ground Brake pedal is released Below 1 V

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    REPLACE TCM. Refer to  COMPONENTS [12/2013 - 11/2016] 

    Result:  2

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

scientia non olet · About LEMON Manuals