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Home >> Toyota >> 2011 >> Camry Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 194 (Automatic Transmission - U660E - (Diagnostic Codes & Circuit Tests) (Except Hybrid)) >> Automatic Transaxle System >> DTC P0724: Brake Switch "B" Circuit High >> Procedure

DTC P0724: Brake Switch "B" Circuit High: Procedure

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  1. READ VALUE USING DATA LIST (STP SIGNAL) 

    HINT: 

    Using 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.

    1. Turn the ignition switch off.
    2. Connect Techstream to the DLC3.
    3. Turn the ignition switch on (IG).
    4. Turn on the tester.
    5. Enter the following items: "Powertrain / ECT / Data List".
    6. According to the display on the tester, read "Data List".

      Standard

      Item Measurement Item/
      Range (display)      		 Normal Condition
      Stop Light Switch Stop light switch status/
      ON or OFF
      • Brake pedal is depressed: ON
      • Brake pedal is released: OFF
      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.

    OK → See step   3 

    NG: Go to next step 

  2. INSPECT STOP LIGHT SWITCH ASSEMBLY 
    1. Remove the stop light switch assembly.
      Fig 1: Inspecting Stop Light Switch Assembly
      GTY128148Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Switch Position Tester Connection Specified Condition
      Switch pin free 1 - 2 Below 1 Ω
      Switch pin pushed in 1 - 2 10 kΩ or higher
      Switch pin free 3 - 4 10 kΩ or higher
      Switch pin pushed in 3 - 4 Below 1 Ω

    NG → REPLACE STOP LIGHT SWITCH ASSEMBLY 

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - TCM) 
    1. Install the stop light switch assembly.
      Fig 2: Checking Harness And Connector (Stop Light Switch Assembly - TCM)
      GTY201934Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the TCM connector.
    3. Measure the voltage according to the value(s) in the table below when the brake pedal is depressed and released.

      Standard voltage

      Condition Tester Connection Specified Condition
      Brake pedal is depressed C56-12 (STP) - Body ground 10 to 14 V
      Brake pedal is released C56-12 (STP) - Body ground Below 1 V

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → REPLACE TCM 

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