Pedal Position Sensor
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
The pedal position sensor is mounted on the servo unit in the engine compartment. The sensor has several functions. It is used to:
- register rapid pedal movements for emergency brake assistance
- shut off the traction control during braking
- to diagnose the function of the brake lamp switch
- it is used by the engine control module (ECM) for cruise control. The signal is transmitted via the control area network (CAN).
The sensor, which responds to the push rod for the pedal, is a sliding potentiometer. 0 mm corresponds to 0 V and 38.5 mm movement corresponds to approximately 95 % of battery voltage (Ubat ).