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Check all wires at sockets for breakage and check the brake lights for normal functionality and all the bulbs the third brake light bulbs are probably blown out as well as the license plate bulbs and the interior light may be loose in its fitting if after checking and making sure the bulb is tight the dimmer switch is worn for the interior light and should be replaced
Power for the brake lights travel thru a light failure sensor which could have failed. The third brake light does not involve the sensor. If both brake light bulbs have no voltage, the sensor may have failed.
it sounds like a ground problem...sounds like the ground is trying to go through the bulbs to make connection....check all ground wires battery, engine and rear frame...
Not even the third eye? then the fuse is blown or all the bulbs are out or the brake light switch on the break pedal is bad wire off or broken( it breaks right off the plug then crosses then blows the fuse as the loose broken wire hits the brake pedel arm. Test the break pedal switch first if the third eye doesesnt work either. no power with a test light the fuse is blown or the wire broke ( the wire goes straight to the switch from the fuse and doesnt go anywhere elese. the other wire if hot should light the lights. Most of these wont come out of park without this working as the wire also turns on the park release but some Fords the park release sticks released and Ford made em that way as they didnt like the brake to get out of park law. If the brake lights dont work maybe you ought not be able to get out of park anyway till its fixed. the switch is hot on both wires with the switch pused down and the lights dont still work go after the third eye first if the bulbs are bad change em before you do the rest of the work. on cars with yellow turn signals the brake lights all work on the same wire but red only use three wires, but you didnt say the turn signales didnt work if they work and they are red you r on the way to the turn signal switch as the brake switch powers the turn switch with power then it splites it fot the two lights and adifferent switch circuit for the front hooks them all together for hazard. yellow turns in the back or even separt bulbs can mean blown bulbs ther too its old enought for all the bulbs to fail and the runs still work.
The module reads the bulb amperages, so the bulbs must be the right ones for the car. Pay close attention to the third light and its brightness....921 I believe
Do you know if the brake light bulbs are working? (are the bulbs good?). (the bulbs have two parts, one for brake lights the other for running lights) If the third brake light bulb is working the brake lights should be with good light bulbs.
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