Hello
Thanks for the donation.
Sounds like your passenger side door lock switch is faulty. You can perform the follow tests to rule out any wiring issues.

FIGURE 1

FIGURE 2


If you would like an estimate on having this component replaced at a repair shop just let me know. Or if you would like to save some green and replace the part yourself I can post some removal/installation instructions. Post the results of the wiring tests and let me know if you need anything else.
Hope this helps..
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Thursday, January 8th, 2009 AT 1:00 AM