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Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Automatic Transmission - A750F) >> Automatic Transmission System >> DTC P0724: Brake Switch "B" Circuit High >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
  1. READ VALUE OF DATA LIST (STP SIGNAL) 

    HINT:

    Using the intelligent tester's DATA LIST allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to save time.

    NOTE: In DATA LIST DETAIL  , 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. Warm up the engine.
    2. Turn the ignition switch OFF.
    3. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
    4. Turn the ignition switch ON.
    5. Turn the intelligent tester ON.
    6. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST.
    7. Read the DATA LIST using the intelligent tester.
      DATA LIST DETAIL

      Item Measurement Item/Range (Display) Normal Condition Diagnostic Note
      STOP LIGHT SW Stop light switch status/ON or OFF
      • Brake pedal is depressed: ON
      • Brake pedal is released: OFF
      -

    OK: Go to step   3 

    NG: GO TO NEXT STEP 

  2. INSPECT STOP LIGHT SWITCH 
    1. Remove the stop light switch.
    2. Measure the resistance of the switch.

      Standard resistance 

      TERMINALS RESISTANCE SPECIFICATION

      Tester Connection Switch Condition Specified Condition
      1 - 2 Pin pushed (pedal released) 10 kΩ or higher
      1 - 2 Pin not pushed (pedal depressed) Below 1 Ω
      3 - 4 Pin pushed (pedal released) 10 kΩ or higher
      3 - 4 Pin not pushed (pedal depressed) Below 1 Ω

    NG: REPLACE STOP LIGHT SWITCH 

    Fig 1: Inspecting Stop Light Switch
    G04436469Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO TO NEXT STEP 

  3. CHECK WIRE HARNESS (ECM - BATTERY) 
    1. Check wire harness (see ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: REPLACE ECM