I just realized that my power seats only function with the door open whether or not car is on or off. Is this how it's supposed to be. I do know there is the contact in the door jamb that opens/closes circuit for the seats, but shouldn't they be functional when the engine is on and the door is closed? I thought about removing the plastic pin so that even when the door is closed the switch is still closed circuit so that the seats are always functional, but this would also drain my battery. Anyone know a way to bypass this or are my seat switches off?

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1990 190E 3.0L