DTC    C1267/67    Brake Pedal Load Sensing Switch

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DESCRIPTION

The brake pedal load sensing switch is turned on when the brake pedal is depressed with force exceeding a predetermined level.
The skid control ECU detects if the brake pedal is depressed or not via this circuit.

DTC No.
DTC Detecting Condition
Trouble Area
C1267/67
When any of the following is detected:
  1. An open or short in the brake pedal load sensing switch continues for 0.3 seconds or more.
  2. Immediately after the engine switch is turned on (IG), the brake pedal load sensing switch is ON and the stop light switch is OFF for 10 seconds or more.
  3. While the vehicle speed changes from 0 mph (0 km/h) to 18 mph (30 km/h), the condition that the brake pedal load sensing switch remains ON occurs 5 times in succession.
  4. With the stop light switch ON, the brake pedal load sensing switch OFF, and the master cylinder pressure 6 Mpa or more, the deceleration is 0.4 G or more for 1 second or more.
  5. With the stop light switch ON, the brake pedal load sensing switch OFF, and the master cylinder pressure 6 Mpa or more, the vehicle speed is 0 mph (0 km/h) for 5 seconds or more.
  1. Brake pedal load sensing switch
  2. Brake pedal load sensing switch circuit

WIRING DIAGRAM


C109392E01


INSPECTION PROCEDURE

NOTICE:
When replacing the ABS and TRACTION actuator assembly, perform zero point calibration (Click here).

HINT:
If C1249/49 is output, repair it before repairing C1267/67 based on the flow below.

1.INSPECT BRAKE PEDAL SUB-ASSEMBLY

C106569E02


C106568E01

NOTICE:
  1. Do not remove the brake pedal load sensing switch from the brake pedal sub-assembly.
  2. When there is a malfunction in the brake pedal load sensing switch, replace the brake pedal sub-assembly.

  1. Disconnect the brake pedal load sensing switch connector.

  1. Measure the resistance according to the value(s) in the table below.

    Resistance:

    Tester Connection
    		Condition
    		Specified Condition
    A49-2 (FSW+) - A49-1 (GND)
    		Brake pedal depressed
    		Approx. 1 kΩ
    A49-2 (FSW+) - A49-1 (GND)
    		Brake pedal released
    		Approx. 213 Ω



NG
REPLACE BRAKE PEDAL SUB-ASSEMBLY
OK


2.CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU TO BRAKE PEDAL LOAD SENSING SWITCH)


    C110685E02

  1. Disconnect the skid control ECU connector and the brake pedal load sensing switch connector.

  1. Measure the resistance according to the value(s) in the table below.

    Resistance:
    Tester Connection
    		Specified Condition
    A48-7 (FSW+) - A49-2 (FSW+)
    		Below 1 Ω

  1. Measure the resistance according to the value(s) in the table below.

    Resistance:
    Tester Connection
    		Specified Condition
    A48-7 (FSW+) - Body ground
    		 10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (FSW+ CIRCUIT)
OK


3.READ VALUE OF INTELLIGENT TESTER (BRAKE PEDAL LOAD SENSING SWITCH)

  1. Connect the intelligent tester to the DLC3.

  1. Start the engine.

  1. Select the DATA LIST mode on the intelligent tester.

    DATA LIST: ABS/VSC/TR(A)C 
    Item (Display)
    		Measurement Item / Range (Display)
    		Normal Condition
    Brake Pedal Load Sensing SW
    		Brake pedal load sensing switch / ON or OFF
    		ON : Depressed brake pedal
    OFF : Released brake pedal

  1. Read the value of the brake pedal load sensing switch displayed on the intelligent tester when depressing and releasing the brake pedal.

    OK:

    Condition
    		Display
    Brake pedal depressed
    		ON
    Brake pedal released
    		OFF



NG
REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY
OK

END