Remove 1/3 of the rear seat on the right. Unscrew the bolts "arrows" and remove the cover "1" of the locking flange. Disconnect the plug "1" from the flange.
To do this, move the stopper "1" upwards "arrow A" and press the release button inwards "arrow B". Connect a multimeter to check the resistance between contacts "2" and "3".
(The original version is on the portal «AUDIMANUAL»)