Patent ID: 7282817

Claim:
An arrangement for controlling a power element associated with a motor used to adjust a motor vehicle unit, wherein the power element includes first and second inputs with the first input connectable to negative power and the second input connected to positive power, wherein the power element drives the motor when the first input is connected to the negative power and the second input is connected to the positive power, the arrangement comprising: a switch which connects to the positive power upon manual actuation; a controller connected to the switch; a first transistor connected to the switch via the controller, the first transistor connected in series with the power element such that the first transistor is connected between the first power element input and the negative power, wherein the first transistor turns on causing the first power element input to connect to the negative power upon manual actuation of the switch while the controller is operational; a second transistor connected directly to the switch, the second transistor connected in series with the power element such that the second transistor is connected between the first power element input and the negative power when the controller is non-operational, wherein the second transistor turns on causing the first power element input to connect to the negative power upon manual actuation of the switch while the controller is non-operational; a water sensor which connects to the negative power upon contact with water; and a third transistor connected to the switch via a diode and connected to the water sensor, the third transistor connected in parallel with the power element such that the collector emitter path of the third transistor is connected in parallel to the power element inputs, wherein the third transistor turns on causing the power element to be short-circuited such that the power element is prevented from driving the motor upon water contacting the water sensor while the controller is non-operational and while actuation of the switch is void.