Cracked electrical wire caused this to my car once.
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.
There can be several things that will cause your 2000 Dodge Durango transmission to slip into reverse. A malfunctioning slave valve can cause this to happen.
A blown fuse can cause the dashlights and taillights to stop working on a 2001 Dodge 1500.
head lights won't work, no power to them, signal works , reverse lights work
TORQUE CONVERTER IS A LIKELY CAUSE
Reverse light switch bad or out of adjustment.
check the motor mounts
It can cause it to only have second and reverse gears.
Did you check the light bulbs? If OK, probably a bad reverse light switch in tranny.
There is a switch on the shifter or trans that turns on the lights when the vehicle is placed in reverse, it is out of adjustment or faulty. And don't forget the bulbs or fuses as a cause.
In those tail lights there is a circuit board. If it goes bad it will cause all kinds of problems.
Fuse, bulbs, switch, wiring.