I just looked and didn't find a torque converter control switch for this but that doesn't mean there isn't one.
Check that all fuses are good with an ohm meter. If there is a switch - does it light up? Don't know as this is probably a Mazda sold thru Mercury.
If all checks out just look for wiring that goes to the trans and see if it's all hooked up.
Last ditch: I hear AAMCO will do a diag for free if sent by AutoZone and would check that out. Perhaps you'll get lucky and it won't be a big deal.....
Good luck,
T
Tom Greenleaf - MetroWest Boston - USA
http://www.acsource.com/ _________________________________________
http://www.autoacsystems.com/tomgreenleaf/