For safety reasons, disconnect the battery ground cable. Pull the knob off the switch lever. Undo and remove the two controls to instrument panel mounting screws located on the face of the control assembly. Ease the control assembly forwards out of the panel to give access to the rear. Disconnect the switch lead wire. Undo and remove the screw securing the switch to the control assembly. Remove the switch from the forward side of the control assembly. Refitting the Blower Motor Switch is the reverse sequence to removal.