2057 bulb works for turn signal but not for brake 1992 dodge shadow

If both the brake lights and rear turn signals are not functioning in your 2008 Dodge Charger, there are several possible causes to consider. Here are some common issues that could lead to this problem:
1. Blown fuses: Check the fuse box for any blown fuses related to the brake lights and turn signals. A blown fuse can interrupt the circuit and prevent the lights from working. Refer to your vehicle's manual to locate the specific fuse for these functions and replace it if necessary.
2. Faulty bulbs: Inspect the bulbs in the brake lights and turn signals to see if they are burnt out or damaged. If a bulb is not working, it should be replaced. It's possible that multiple bulbs have failed simultaneously, leading to both the brake lights and turn signals not functioning.
3. Wiring issues: Check the wiring connections and harnesses for any signs of damage, loose connections, or corrosion. Faulty wiring can disrupt the electrical flow and prevent the lights from operating. Repair or replace any damaged wiring as needed.
4. Malfunctioning brake light switch: The brake light switch, located near the brake pedal, activates the brake lights when the pedal is pressed. If the switch is faulty or misaligned, it can cause the brake lights to not work. Consider having the brake light switch inspected and replaced if necessary.
5. Faulty turn signal relay: The turn signal relay controls the flashing of the turn signals. If the relay is defective, it can prevent the rear turn signals from operating. Consider replacing the turn signal relay if other potential causes have been ruled out.
If troubleshooting these common issues does not resolve the problem, it is recommended to consult a professional mechanic or authorized Dodge service center for a more accurate diagnosis and repair. They will have the expertise and necessary tools to pinpoint and fix the specific issue with your 2008 Dodge Charger's brake lights and rear turn signals.

It's probably a bad turn signal switch, since the brake lights are wired in with the turn switch.
If you have a 3rd brake light, the high mounted one in the rear window, this light is separate from the brake lights that go through the turn switch. If your high mount brake light comes on, when brakes are pressed, then brake switch is good and probably a bad turn signal switch. Of course if you have a voltmeter or test light, you could test for power in and power out from the turn switch connector, to help you find the problem.

Does the dimmer switch work properly? If yes, have you replaced BOTH flasher relays? if yes, then it sounds like you have a short in your wiring harness. You're going to have to chase the connectors with a multimeter. It's tedious but rewarding work. Best of luck!

If the fuses are good and the front and rear bulbs are good, change the flasher for the turn signals, even tho the right is working. If that doesn't fix the problem, it might be in the turn sgnal switch on the steering column.
If both bulbs are good for the backup lights and fuses are good, then the backup light switch, which is screwed into the side of the transmission has to bad.

Fuse should be under dash on left side. Providing that there is power there and power at the signal switch (and bulbs are good) likely there is a problem in the signal switch.

Have you taken bulb out & cleaned terminals inside socket & either cleaned bulb base & terminals, or tried replacing bulb?

Usually that fast blink is a good warning that one of the signals is out. Double checked that bulb is same # and all that ? What number is on the bulb? if it's 2057 or 3057, try pulling wires on side of bulb with fingernail, outward to make better contact, to see if that helps.

Hi Ahunley, Sounds like you have cross the connection wires to the unit ( positive to earth & earth to positive) Try swapping the connectors over.

Hope this works.
kind regards
David

check all bulbs first, check your flasher, should be under dash near or on fuse panel, also check your fuses. It is hard to help you any further without more info, I do hope this may help you figure it out though. Good Luck