Troubleshooting Your Toyota Tundra Tail Light Assembly
The tail light assembly on your Tundra consists of more than just the red and yellow lights that signal what you want to do to the drivers behind you. The assembly is also made up of wires, panels, and covers among other components. This is why it can be hard to find out precisely which part has malfunctioned. But, you will still need to troubleshoot your Toyota Tundra tail light assembly because you need working tail lights to show where you are at night, where you want to turn, or if you're stepping on the brakes.
The first idea that often pops into people's minds when their turn signals and brake lights stop working is that your light bulbs have blown out. Bulbs that need replacing will have broken filaments and dark brown spots. Take care while changing your light bulbs because they could break or the oil from your hands could cause another burn-out.
Issues with the fuse
If you continue to experience multiple blowouts even after you've changed the tail light bulbs on your Tundra, then your fuse could be the culprit. Confirm this by finding the fuse panel underneath your dashboard, at the knee bolster area that touches your left knee as you drive. This panel is just to the left of your hood release handle. Locate the fuse that's been labeled as "tail" with help from the map on the panel door. If the tail fuse is blown, you will need to replace it with a new one.
Faults in the light switch
Sometimes the problem could lie with the switch that turns your signals on and off. Sit on the driver's seat and flip the switch while feeling for any looseness. If the switch is loose or if it fails to stay active, then the problem lies with it and not with your Tundra's tail light assembly.
Kinks in the wiring
If you've recently changed your bulbs but your fuse is fine, then your problem could lie within the wiring of your tail lights. One of the wires could be damaged or loose. You'll have to follow your Tundra's wiring schematics to follow the wires around the assembly and check for grounds, breaks, or burnt spots.