SEAL-CLIP 1473388 - Caterpillar

Brake Pedal Position Sensor
Illustration 1 g00334076
Position SensorThe brake pedal position sensor is an input of the ECM. The sensor tells the ECM the position of the brake pedal. The ECM uses this information to turn on the brake lights. The brake pedal position sensor is a PWM sensor. This sensor continuously generates a PWM signal. The duty cycle varies in proportion to the position of the brake pedal. The ECM receives the PWM signal and the ECM measures the duty cycle. This allows the ECM to determine the position of the brake pedal. The frequency of this signal is constant. The signal wire (contact "C") of the brake pedal position sensor connects to connector J2-5 of the ECM. The sensor gets operating power