DTC C1430: Brake Pedal Load Sensing Switch OFF Stuck Malfunction; DTC C1431: Brake Pedal Load Sensing Switch ON Stuck Malfunction [12/2013 - 11/2016]: Description
The brake pedal load sensing switch (brake pedal support assembly) turns on when the brake pedal is depressed with a force exceeding a predetermined level.
The skid control ECU (brake actuator assembly) uses this circuit to detect if the brake pedal is depressed or not.
| DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
| C1430 |
Brake Pedal Load Sensing Switch OFF Stuck Malfunction |
Either of the following is detected:
- With the stop light switch assembly on, the brake pedal load sensing switch off, and the master cylinder pressure 6 MPa (61.2 kgf/cm2, 870 psi) or more, the deceleration is 0.4 G or more for 1 second or more.
- With the stop light switch assembly on, the brake pedal load sensing switch off, and the master cylinder pressure 6 MPa (61.2 kgf/cm2, 870 psi) or more, the vehicle speed is 0 km/h (0 mph) for 5 seconds or more.
|
- Brake pedal load sensing switch (Brake pedal support assembly)
- Brake pedal load sensing switch circuit
- Skid control ECU (Brake Actuator Assembly)
|
| C1431 |
Brake Pedal Load Sensing Switch ON Stuck Malfunction |
Either of the following is detected:
- Immediately after the ignition switch is turned to ON, the brake pedal load sensing switch is on and the stop light switch assembly is off for 10 seconds or more.
- The condition that the brake pedal load sensing switch remains on while the vehicle speed increases from 0 km/h (0 mph) to 30 km/h (19 mph) occurs 5 times in succession.
|
- Brake pedal load sensing switch (Brake pedal support assembly)
- Brake pedal load sensing switch circuit
- Skid control ECU (Brake Actuator Assembly)
|