How do you replace the throttle sensor on citroen Picasso 1600?

To replace the throttle sensor on a Citroën Picasso 1600, first, disconnect the battery to ensure safety. Remove the air intake duct to access the throttle body, then unclip and disconnect the electrical connector from the throttle sensor. Unscrew the sensor from the throttle body, install the new sensor in reverse order, and reconnect the electrical connector and air intake duct. Finally, reconnect the battery and check for proper operation.