The relay will be in "The Black Box" in the engine compartment.
Generally located on the drivers side. An usally has markings on it to indicate what is what on the inside. Good Luck and Remember.
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Check the switch on turn signal stalk - do they work when you pull back on stalk? Check relay in power distribution box
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.
Check to see if the dash lights dim or if the tail lights come on when the light switch is turned on. If these other lights work then check for a headlight relay. Most likely causes are either the switch or the relay.
First check the fuse, then the bulbs, then the flasher relay, then the signal switch.
The exterior lights do not have a relay. They are directly turned on by the headlight switch.
A malfunctioning brake light and flasher relay switch will cause the brake lights and flashers to stop working. The relay switch can be found below the dashboard on the drivers side of the passenger compartment.
Bad switch, bad relay, short to ground in the circuit.
There is no relay. The voltage comes from the fuse box directly to the headlight switch.
possibly the fuse for brake lights......also could be brake light switch----turn signal switch----broken wiring anywhere in the vehicle---relay not working ---any other item specific to your venicle.
Check the fuse, and the Turn Signal Flasher Relay. The hazzard lights have a separate relay.
If the warning lights will not turn off it could be the on and off switch. It could also be the relay switch.
The brake relay switch is bad.