This is an internal transmission problem and could have several causes. Transmission needs to be replaced or rebuilt. There are a good amount of used ones on the market for reasonable prices. Get one with a parts and labor warranty.
location were is fuel relay to 87 Pontiac Bonneville
check ground wires under both doors
check the fuses - there is no fuse for the headlights.
Check the bulbs, check the fuse then check the switch.
reverse black and red wires
Either there is a wire lose or the flasher relay is not working right or lose in its socket.
Check the outlet by plugging in a 12v accessory (radar, gps, phone charger). If it has power, then the problem is the lighter itself. The are only a few dollars.
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.
if the radio is not working in a 2007 Pontiac g6 sdn what is the problem
There are several red flags that can indicate overdrive is not working on an automatic vehicle. If a car is shifting in and out of gear or out of overdrive is usually the first signal of a problem. Other signals include low fluid levels and and erratic temperature sensor.
Get the transmission rebuilt.
There are many reasons why your reverse gears stopped working. There could be a leak or a plug for example.