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The exterior lights do not have a relay. They are directly turned on by the headlight switch.
There is no relay. The voltage comes from the fuse box directly to the headlight switch.
There is a fuel pump relay (or circuit opening relay) attached to the ECU (engine computer) located behind the dash.
If the warning lights will not turn off it could be the on and off switch. It could also be the relay switch.
It has a flasher relay for the signals only.
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.
bad fuse or relay switch
The brake relay switch is bad.
The 1996 GMC Yukon brake lights work by receiving power from the brake light relay switch. The brake light relay switch is connected to the brake pedal.
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.
Interior lights do not come on. Running boards lights do. Pulled the fuse and its good. Is there a Interior light relay.
Replace the turn signal flasher relay.