Is there a way I can probe onto the leads of my central locking system's vacuum pump to engage it without using the door lock. There are 3 wires going to it, not sure what's what. One has to be common, then the other two are I am guessing the 'lock' lead and the other would be the 'unlock' lead. But I'm not sure. My haynes manual says what fuse the pump is on... but that's it. No schematics on that. They have schematics for just about everything else BUT the central locking system. Thanks.

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1984 190D 2.2 Auto 220k
2001 Jeep Cherokee Sport 70K
2004 Lexus RX-330 ??K
2005 Chrylser Crossfire LTD 6K

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