Tail Lights stay on all the time.

This is a common complaint with the '98 Dodge Ram 1500.

I'd start with checking the fuses for the dash lights and tail lights, first. If those check out as okay, I'd recommend disconnecting the tail lights and reconnecting them, in case a connection issue caused the problem (dirt, debris, corrosion, etc).

It might not be practical to try and test the dash lights, so start with the tail lights and see what happens, if needed.

If the tail light still doesn't function and the bulbs are actually good, it's possible your vehicle has a power/ground wiring issue or a faulty BCM (Body Control Module), which has been the case for many others.

A bad BCM can cause various electrical problems with lighting etc in a vehicle, since it controls those functions.

Headlight switch is worn out, had the same thing on an old Ford pickup truck.

Check the headlight switch. The power goes from the fuse to the headlight switch and then to the dash and running lights.

the dash and tail lights are ran on the same fuse/curcit your shorting to ground somewhere along the lines. check for a broken bulb melted wiring or a broken wire

Not familiar with vehicle as i come from australia but most cars work like this , dash light power from tail lights via relay and tail switch

the rear tail lights, license plate bulbs, and the front park lights are all fed off the same fuse. I show fuse one in the dash fuse block (15 amp). If the front amber park lights are working its not a fuse.

Are you sure the bulbs are good? Have you checked the connections in the harness?

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

are they tail lights or brake lights?

Brake lights will be the brake light switch under the dash


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I had The Same Problem Check your towing light harness move it around fuze won't pop. Hope This Works

Check your tail light fuse, on the dodge ram the dash lights and tail lights use the same fuse so if the tail light fuse blows your dash lights will go out to alert you of no tail lights.

hi the fuse you will be looking for will be a 15 amp fuse as the loading is low on light curcuits i don't
know which fuse no as they fitted 4 different fuse boxes on the rams but you should start by checking the 15 amp fuses with a multimeter for continuety or some time hold a torch close to the fuses and you will see the link broken