A method for testing the plausibility of the output signals ( u 1, u 2) of a resolver with pole pair number n, by which an angular position (x) of two links of a machine pivoted with respect to an axis (A1-A6) of rotation can be determined, wherein the two links are moved in relation to one another by a motor (10, 11) of the machine, the method comprising: - generating two discrete output signals ( u 1, u 2) with the resolver during the normal operation of the machine, by which the angular position of the two links in relation to one another can be determined, wherein the two output signals ( u 1, u 2) of the resolver are assigned to the angular position (x) of a rotor of the motor (10, 11) in relation to a stator of the motor (10, 11), and the two output signals ( u 1, u 2) are evaluated for at least one complete motor revolution, - comparing the sum of the normalized squares of the discrete output signals ( u 1, u 2) with a corresponding target value (f), which is determined for all theoretically possible discrete angular positions of the motor (10, 11) during an entire motor revolution, and - using only those discrete output signals ( u 1, u 2) for determining the angular position of the rotor in relation to the stator of the motor (10, 11) for those discrete output signals ( u 1, u 2), for which the sum of the squares of the normalized output signals ( u 1, u 2) in question differs from the target value (f) no more than by a predefined value (r), wherein the output signals ( u 1, u 2) are normalized, a combination of the output signals ( u 1, u 2) is the sum of the squares of the normalized output signals, and the target value (f) of the combination of the two output signals ( u 1, u 2) meets the following requirement: f = 1 + a ⋅ sin x + b wherein the parameter a is a constant with a positive value greater than zero and the parameter b is a constant value that arises on the basis of the production tolerance of the resolve and the target value (f) is plotted against the angular position (x) of the rotor of the motor (10, 11) relative to the stator. - generating two discrete output signals ( u 1, u 2) with the resolver during the normal operation of the machine, by which the angular position of the two links in relation to one another can be determined, wherein the two output signals ( u 1, u 2) of the resolver are assigned to the angular position (x) of a rotor of the motor (10, 11) in relation to a stator of the motor (10, 11), and the two output signals ( u 1, u 2) are evaluated for at least one complete motor revolution, - comparing the sum of the normalized squares of the discrete output signals ( u 1, u 2) with a corresponding target value (f), which is determined for all theoretically possible discrete angular positions of the motor (10, 11) during an entire motor revolution, and - using only those discrete output signals ( u 1, u 2) for determining the angular position of the rotor in relation to the stator of the motor (10, 11) for those discrete output signals ( u 1, u 2), for which the sum of the squares of the normalized output signals ( u 1, u 2) in question differs from the target value (f) no more than by a predefined value (r),