2004 Dodge Ram 1500, My right top brake light won't work but the turn signal does so the bulb is good. checked all wiring and fuses but no luck

Hazard switch might be on

Three places to look. 1) Brake lamp fuse, 2) Turn signal switch and 3) the brake pedal switch. Brake light power comes from the fuse up to the turn signal switch down to the brake lite switch on the brake pedal and then on to the light bulbs. Start by putting the 4 way flasher on. If the brake lites flash, then the bulbs are good. That eliminated the fuse too. so the problem is the other two.

Just had a similar question last week, and the solution was a bad socket/bulb holder.
You might try and see if there is current in the brake light wire leading to the bulb holder.
I have used a jumper wire and a safety pin to test the wire behind the socket.
I pierced the plastic insulation of the brake light wire with the point of the safety pin, and either use a tester or even a good working bulb and a good ground wire.
Be blessed.

Amen to that! Find a good independent mechanic or garage and try to keep them. Both the turn signals and the brake lights are fused circuits, so check the fuses for both at the fuse panel, probably under driver's dash. There is also a brake light switch at top of brake pedal-if you have a test light, you could check for power at the switch, and for power leaving the switch when pedal is pushed down. From there, the brake light signal travels to the rear brake lights, lighting the bulbs, and then to a ground source. Do you see any hanging wires at the rear of truck? Anything look amiss with the wires going to the light fixtures? If any wires got broken, likely at the rear of truck. Are the tail lights good? If they are good, I think the brakes and turns would share the same ground with the park lights, but if all are out, it could be a ground problem for the rear lights. All of these wires going to rear would be in a single harness.
You could have a bad turn signal switch, since the brake light circuit is routed through the turn signal switch.
If you could, have a mechanic or someone check the turn switch and brake lights.
Good luck.

Go to online store reliable they have repair manuals I am sure you will get the solution. Here's the link 2004 Dodge Ram 1500

These are known for corrosion in the intelligent power module. Can't be fixed, must be replaced.

Hello there, The name of the part you are looking for is called a brake light switch, Fairly simple to change and relativly inexpensive. It is located behind the top of the brake pedal. Just a thought for you, I would suggest replacing the tail light bulbs first because you can have running lights and turn signals but the brake portion is burnt out.

Good Luck and I hope this helps, Allen

sounds like a faulty underhood fuseblock..have seen lighting issues with these components

The only thing left to investigate is the signal switch itself. The brake light system runs through the signal switch so it can effect both systems. Start with the simple, like, is a wire loose? Look at the base of the steering column. Check plugs and such. I believe you'll see it's in that part of the system.

Good Luck

I would guess the brake fuse ( this does not use the same fuse as the tail lights/blinkers) or the ground for the brake light bulb.