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Bad bulbs can be the cause of your reverse lights not working on your 1999 Toyota Tacoma. A problem with the reverse switch or bad wires can also be the cause of your reverse lights not working.
The problem is the reverse light switch. It is located on the top of the transmission that should sloved your problem.
have you checked the bulbs and fuses
instrument panel or controls?
there is no fuse for the reverse lights check the netural safety switch it may be out of adjustment or shorted.
Replace the starter
The fuse for the fog lights on a 1999 Infiniti QX4 is located in the fuse box under the dashboard on the driver's side. Specifically, it is the 10A fuse labeled "FOG" in the fuse panel. If the fog lights are not functioning, checking this fuse for continuity or replacing it may resolve the issue. Always refer to the owner's manual for exact locations and specifications.
Check the fuses first then check the bulbs.
Could be the brake light switch or fuse.
If the reverse lights are not working on a 1999 Chevy Suburban, be sure to check the fuse panel. If all the fuses are in working order, check the wires for any loose connections. Faulty wires can result in little or no light input.
In the under-hood fuse box - it is Fuse #8.