Monitor Description

C0562: 

1. The skid control ECU (brake booster with master cylinder assembly) monitors the power supply voltage of the brake pedal stroke sensor assembly. When the brake pedal stroke sensor assembly power supply voltage is outside of the normal range, the skid control ECU (brake booster with master cylinder assembly) judges that the power supply is abnormal and illuminates the MIL and stores this DTC.

C124B: 

1. When the following conditions are met, the skid control ECU (brake booster with master cylinder assembly) judges that the data from the brake pedal stroke sensor assembly is invalid and illuminates the MIL and stores this DTC.
   1. Brake pedal stroke sensor assembly related DTCs (C0562, P057D, P05DE, P057C, P05DD, P05E0, P057E and P05DF) are not stored.
   2. When related malfunction DTCs are not stored, the skid control ECU (brake booster with master cylinder assembly) continuously detects a brake pedal stroke sensor assembly malfunction.

SAE Code C1392: 

1. After any of the following situations, if the zero point of the brake pedal stroke sensor 1 or brake pedal stroke sensor 2 has not been learned and the vehicle is being driven at a certain speed or more, the skid control ECU (brake booster with master cylinder assembly) judges that the zero point of the brake pedal stroke sensor is uncalibrated and illuminates the MIL and stores this DTC.
   1. The skid control ECU (brake booster with master cylinder assembly) has been replaced with a new one.
   2. After the brake actuator assembly, brake pedal stroke sensor assembly or brake pedal is removed and installed or replaced, the zero point is cleared.

P057C, P057D, P057E, P05DD, P05DE, P05DF and P05E0: 

1. The skid control ECU (brake booster with master cylinder assembly) monitors the output value of the brake pedal stroke sensor assembly, and if the following conditions are detected, the skid control ECU (brake booster with master cylinder assembly) judges that the brake pedal stroke sensor assembly has a malfunction and illuminates the MIL and stores a DTC.
   1. The power supply voltage ratio of the brake pedal stroke sensor 1 and brake pedal stroke sensor 2 is outside the normal range.

      HINT: 

      The power supply voltage ratio is the ratio of the voltage of SKS1 and VSK1 or SKS2 and VSK2.

   2. When the brake pedal is operated, the relationship between the value output by the brake pedal stroke sensor 1 and brake pedal stroke sensor 2 is outside the normal range.
   3. The difference between the current power supply voltage ratio and the previous power supply voltage ratio of the brake pedal stroke sensor 1 and brake pedal stroke sensor 2 exceeds a specific value (improbable sudden change repeats).

      HINT: 

      The power supply voltage ratio is the ratio of the voltage of SKS1 and VSK1 or SKS2 and VSK2.

C1392 (INF Code 1124): 

1. After any of the following situations, if the zero point of the brake pedal stroke sensor 1 or brake pedal stroke sensor 2 has not been learned, the skid control ECU (brake booster with master cylinder assembly) judges that the zero point of the brake pedal stroke sensor is uncalibrated and illuminates the ABS warning, brake warning / red (malfunction), brake warning / yellow (minor malfunction) and slip indicator lights, blinks* the brake hold operated indicator light and stores this DTC.
   1. The skid control ECU (brake booster with master cylinder assembly) has been replaced with a new one.
   2. After the brake actuator assembly, brake pedal stroke sensor assembly or brake pedal is removed and installed or replaced, the zero point is cleared.

      HINT: 

      • *: The brake hold switch (electric parking brake switch assembly) is turned on under the following vehicle conditions.
        1. Vehicle Conditions:
           1. The driver side door is closed.
           2. The driver side seat belt is fastened.
      • As the detection conditions slightly differ from SAE code C1392, the detection conditions for DTC C1392 (INF code 1124) is also provided.