Skip the auto shop - Our mechanics make house calls

Q: taillights not working

asked by on

My taillights are not working, but the brake lights are working. The bulbs and fuses are okay too. What could be wrong?

My car has 78000 miles.
My car has an automatic transmission.

Hello. Thank you for writing in. The vehicle is likely experiencing an electrical issue with the switch or wiring involved with its circuit. If the fuse is fine, further electrical testing must be done. With a multi-meter you can test the switch and make sure its resistance is not out of the specified accepted range. If it is, the system is not receiving the ground connection it needs to complete the circuit. At this point the switch must be replaced. If the switch is okay, then they wiring is loose or shorted out somewhere. Common areas for problems are at the terminals or connections, and at any areas next to the wiring where work has been done. In this situation you would have to trace the power supply until you found the component or area of wiring where the power dropped. For more help with electrical testing, contact our service department.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. taillights 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: Car dies while driving

Hello, thank you for writing in. The vehicle can stall for many reasons. You are going to want to start with the most common causes, or do some further testing. To start, the fuel pump may be going out and...

Q: How do I use the autolights?

When the autolights are turned on, your vehicle will automatically turn on and turn off the headlights depending on how light it is outside. To turn on the autolights, rotate the Headlamp Control knob to the autolight setting.

Q: Key stuck in ignition and won't turn.

If it is an automatic then you need to turn the car on and put it in gear and then back in park and see if that frees up the switch. Also turn the steering wheel to the left while...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.