That's the right switch, triggered every 30,000 miles via speedometer cable.� Really push it in, not with finger but with screwdriver or something.� Will give a tactile "click".� 

Rich
San Diego
85 Vanagon

--- On Mon, 5/20/13, David M <covrambles@YAHOO.COM> wrote:

From: David M <covrambles@YAHOO.COM>
Subject: OXS lamp
To: vanagon@GERRY.VANAGON.COM
Date: Monday, May 20, 2013, 11:44 AM

My OXS lamp has been on as long as I can remember. I had the sensor replaced but the shop never turned off the light as they did not know how. I was told there was a switch under the drivers side wheel well but I pressed it and it did nothing. Is there any way to turn this thing off? I have my emissions test coming up and they will surely fail me if the light is on.
Thanks.

-David (1987 Wolfsburg)