check your fusible link, its connected to your positive battery cable,check for burnt marks or it might be swollen.
check reverse light switch on transmission.
the socket
If the speedometer and brake lights aren't working then you should change the fuse. If that doesn't work then check the electrical system associated with your Heritage.
check your fusible link,its connected to your positive battery cable,it could be burnt or swollen.
the brake light driver side not working
check for blown fuses
Take it to the garage.
why is my dash board lights not working
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.
In the 1988 Nissan the alternator, instrument panel, and backup lights shared a fuse. Before changing a fuse see if the backup lights work (have someone watch when you are in reverse). If the neutral start/backup light switch is broken internally, it can be blowing the fuse when you put the car in reverse.
Check the radio/Acc fuse...
there is a switch either under the shifter or on the side of the trans that activates the lights when you put it in R. It needs adjustment or replacement