My head lights are not working

SOURCE: 1994 t0yota camry

check external fuse and relay box under hood. "acessiories"

SOURCE: Corolla 1998 stereo, lighter, boot and roof light, door remote not working

I would be concerned that you may have wired the stereo incorrectly, causing this shorting problem. I suggest that you take it to a stereo installer to check the wiring, as if it is wired correctly the stereo should at least light up with a new fuse in there. Unless the new fuse blew straight away when you put it in. The central lock is likely to be thrown off by the fact that the interior light isn't working, as it uses this input to figure out if the doors are open or shut. Check interior light fuse condition, and get the wiring you've done checked, would be my advice.

SOURCE: Headlights not working, fuses good...

I had the same problem with my '98 corolla... It was the headlight relay.. I just had to push it in and both lights worked fine... There are 2 relays - both under the hood... The first one is located all the way in the front of the car, right by the left headlight (when you are standing infront of the car)... The second one is located inside of the fuse/relay box (above the driver tire)...The relay looks brown in color, rectangle shaped ... Just try to clean it out and plug it back in...if it doesn't work, try replacing it... For me, I just cleand it and plugged it back in and every thing worked fine...

SOURCE: 99 4-runner limited-power door locks dont lock, but will unlock

check for loose ground at drivers side switch

SOURCE: my keys are inside the car- toyota 2003 Ce- manual lock.

call your triple A Co. or tow truck provider. Special tools are used and are not available to the general public. If its an emergency break the side window and deal with replacing the glass later.