Patent ID: 8607427

Claim:
A positioning device for positioning a position sensor for an automatic transmission in a neutral position at a time of mounting the position sensor on the automatic transmission, in which in accordance with a rotation angle of a rotor, a moving contact of the rotor switches contact with a plurality of fixed contacts corresponding to each of shift positions, comprising: a positioning section configured to perform the positioning of the position sensor, a driving section configured to rotate the position sensor through the positioning section, a rotation angle detecting section configured to detect a rotation angle of the position sensor, and a controlling section configured to control an operation of the driving section, wherein the driving section is configured to be operated to rotate the position sensor which is positioned in the positioning section in a state of stopping the rotation of the rotor, wherein the rotation angle detecting section is configured to detect a rotation angle from a neutral position to a predetermined position of a neighboring shift position, wherein the controlling section is configured to calculate, based on this detected value, an angle of a proper neutral position, and wherein the driving section is configured to be re-operated to rotate and correct the position sensor to the proper neutral position.