1993 Mercury Tracer backup lights won't light even after replacement. Must be a fuse. But fuse box deoesn't have a label for the backup lights. Must be connected to another fuse. No owner manual. Which fuse to check.

Look here http://www.bbbind.com/free_tsb.html After entering vehicle info. under system click on electrical distribution , under subsystem click fuse panel . click the second blue link .

Joint box, are you sure?

Interior fuse box


under hood fuse box


hope this helps you

I’m happy to assist further over the phone at https://www.6ya.com/expert/brock_d67526d2a834c47e

You likely have a broken wiring harness at the brake light switch connector under the dash above the brake pedal. You can buy a replacement stub harness from Ford parts.

The diagrams are all contained in a Factory booklet called the "ELECTRICAL TROUBLESHOOTING GUIDE", it is copyrighted and not avaiable as a free download fdrom any site including Fixya. You can obtasin a used copy of of the book from this site for a very reasnable cost. Just click HERE

There are 3 electric motors on the seat. One is forward and back, one is front up and down, and one is rear up and down. The switch changes the polarity back and forth to achieve the proper movement. I think the wire color for the forward and back motor is yellow with a white tracer and red with a white tracer. so if the switch gives the motor positive voltage to the yellow with a white tracer and grounds the red with a white tracer the seat moves forward. If the switch gives the red with a white tracer positive and the yellow with a white tracer ground the seat moves back. (or the other way around). So we can safely say it is in the switch.
Good luck and God Bless

* check your fuses
*check them again
* if all the fuses are good , its gonna be a bad headlight switch , because generally all the bulbs wouldnt burn out at the same time. but if you can remove the dashboard panel you can check the bulbs. but chances are its the headlight switch ( if its not a BAD FUSE) but check the fuses real good.

I suggest check the position 17, 20AMP for Cigar Lighter (page 277 and next for FUSES)...



This and other details can find it in your Mercury Tracer Owners Manual.

Hope this help (remember rated this post).

I can provide a fuse box diagram of a 96, it is the same, here is a link to that manual from a Ford site. U want to look at page 273

http://www.motorcraftservice.com/pubs/content/~WOTGRN/~MUS~LEN/41/96grnog1e.pdf

This should help you.