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.

Fig 1: Identifying Brake Pedal Position Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

The pedal position sensor is mounted on the power brake booster in the engine compartment. 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 (U_bat ).

The pedal position sensor signal is used to check the function of the stop (brake) lamp switch.

The pedal position sensor is directly connected to the engine control module (ECM). This pedal position sensor has no ABS function.