Door mirror switch

The mirror switch on my GTA only works one mirror. I want to take it out & test it. How does the switch come out ? The retaining nut doesn't go over the ball on the end of the switch. Does the ball come off ? I cant see anything obvious . presumably the switch comes out where the grill is fitted under the door pull

Thanks, Paul

[The Saint]

You just pull the ball off and unscrew the bezel.

under the knob there should be a plastic ring that changes the switch from left to right, make sure its located correctly.

You just pull the ball off and unscrew the bezel.

So it does I didn't want to force anything in case I broke it.

under the knob there should be a plastic ring that changes the switch from left to right, make sure its located correctly.

I think this might be the problem. The ring seems to be loose.

Thanks, Paul