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The brake lights in your 1983 Nissan pickup truck are controlled by the brake light relay switch. When the brake light relay switch malfunctions the brake lights will stop working.
If none of the brake lights are working i would suspect the brake switch at the brake pedal.
Check your brake lights,if they are not working it could be your brake light switch or a fuse.If you have no current to your brake lights you will have no current to your shifter release solenoid.If that's not it,could be release solenoid itself.
Possible bad switch on the brake pedal? When you push on the brake pedal, it activates a switch, that switch turns on your brake lights. If the bulbs and fuses are ok, check the switch with an ohmeter.
probably the brake light switch on the pedal if none are working at all
try the brake switch on the back of the brake pedal
brake lite switch will keep it in park
If the fuses and bulbs are okay I would blame the signal switch assembly. They call it a multi-function switch these days.
BEHIND THE BRAKE PEDAL
Yes there is a fuse for your brake lights. Check your fuse box. It should be marked. If the fuse is ok then check the switch. It could be a bad switch or ground.
turn signal switch needs replaced!
Check the brake light bulbs, Check the brake light fuse, Check the brake light switch, In that order.