Hello all,

I am trying to figure out why my door locks don't work. After working fine until this past weekend, neither the key nor the drivers side knob control any of the other locks. Now I can't even lock the tailgate with a key. Does that fact say anything about my problem?

I have checked the fuse, and looked at the relay and cleaned up the contacts, but nothing seems wrong. I want to pull the door lock switch behind the driver's key hole, but can't figure out how to get to it. I have removed the trim panel and can see the switch looking through the opening for the window, but don't know how it is attached to the inside of the door. Any ideas on how to get the switch out or other things I should check before going too much further would be greatly appreciated?

Thanks in advance.

Jim Carmody
1964 122S, 1985 244, 1992 745T

If it is like my 82. You have to reach inside the door and unsnap a flap of
plastic that holds it around the lock cylinder. The lock cylinder is made
with a metal tab that engages the door switch. The door switch is closed
around the lock cylinder and a flap snaps on to hold it. Since both the
door button and the keyswitch aren't working you need to check at the
relays to find out what is going on. You need a test light.

There are two relays in the dash one for unlock and one for lock. The
door switch depending on which way you move it sends a momentary voltage
to the relays. I've had the keyswitch on the drivers door snap a plastic
tab off and stick in the lock position. This made it so it was always
running and trying to lock the doors. But to figure that out I had to
start at the relays so you can see what signals are going to them.
I'm not that familiar with the 700s but I highly recommend spending
the $25 on the Volvo wiring diagram green book for your car. It will
help you many times worth it's price.
Dave 82 242ti