Pedal Position Sensor
The pedal position sensor is only found in vehicles with the adaptive cruise control function. It is mounted on the brake servo in the engine compartment. The sensor, which is a slide potentiometer, is actuated by the brake pedal's pushrod. The sensor is supplied 5 V. The signal is linear and should be between 0.15 and 4.85 V, with voltage corresponding to the position of the brake pedal. The engine control module (ECM) uses the signal for the cruise control function. The signal is transmitted via CAN.