Things You'll Need
Socket wrench set
A defective turn signal relay in the Ram 2500 can cause your signals to malfunction or stop working entirely. As a relay ages, so does its circuitry. However, the most common cause of relay damage is attributable to an electrical fault in a relative location, such as the taillight assembly. You can find and replace the turn signal relay in your Dodge Ram 2500 with a few common tools. You can do this job at home; it should take you less than 20 minutes to do.
Open the driver's door on your Ram 2500. Reach beneath the front of the driver's seat and pull the seat release lever up. Push the seat toward the rear of the truck as far as it will go.
Kneel within the door opening so that you're able to see the bottom of the steering wheel. Below the base of the steering wheel you should see a large square piece of trim panel. This is your Ram 2500's knee-blocker panel.
Remove the screw on the top, left and right of the panel with a Phillips screwdriver. Along the bottom lip of the panel--horizontally--you should see three more screws. Remove the screws with your Phillips screwdriver.
Take the panel off to reveal your interior relay and fuse cluster. If your turn signal relay has never been replaced, it should be the only white relay in the cluster. If it was replaced before with an aftermarket relay, it will likely be black in color. The square turn signal relay sits on the top, outer right corner of the relay and fuse cluster. It pulls out of place and simply plugs back into position.