Skip the auto shop - Our mechanics make house calls

Q: One brake light is not working

asked by on

1974 Dodge full size van / motorhome I replaced the turn signal switch everthing works except right brake light

This should be a double filament bulb, which has two filaments inside. One works for the main tail light and the other is activated when the brake light switch is activated. Many times, one or both of these filaments will burn or break. I would recommend replacing the bulb. If this does not work, you will then need to check the wiring to the light socket itself to be sure there is power to both pins.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. One brake light is not working

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Turn signals not coming on

Hi there. Your vehicle may have two burned out turn signal bulbs. Also your vehicle's turn signal relay may be malfunctioning. Another issue you may be experiencing is a short in your turn signal wiring. I'd suggest having a certified...

Q: Brake switch confirmed good, but brake lights not working

The brake lights are turned on and off by the brake light relay in the underhood relay box. This relay is controlled by the body control module and is signaled by the brake switch. Check the relay first to see...

Q: How do you remove the pistons in the engine while the engine is in the car?

Hi there. You will have to remove the timing belt, exhaust manifold, intake manifold, all vacuum lines, the cylinder head, and the oil pan to gain access to the piston removal. Drain out all of the oil from the oil...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...