IF the switch is bad, you have two choices, replace the switch or run 12 volts to the motor. THere are two wires on the motor. One is powered to lower the glass and the other to raise it.
You could use a jumper wire and a battery charger to raise it, but remember to disconnect the power when it is all the way up because it will burn up the motor.
Let me know if you have other quesitons.
Joe
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Saturday, February 27th, 2010 AT 9:33 PM