Method for detecting the position of a wiper arm for a vehicle window wiping system

Method for detecting the position of a brush holder (5) for a windshield wiping system (1) of a vehicle window (3), comprising the steps consisting of: a) measuring or estimating (35) at least one parameter for determining the maintenance or service position, b) comparing (37) the measured or estimated value of said parameter with a reference value or a range of reference values, and c) determining, based on the results of the comparison, whether the brush holder is in a maintenance or service position.