Skip the auto shop - Our mechanics make house calls

Q: Possible electrical issue

asked by on

98 pontiac grand prix gt. 3.8 v6 the tail lights are not working however the break lights work fine, I have replaced the fuses and the bulbs, so I assume it has to be a issue in the wiring, I am trying to figure out witch whirring harnesses could be affecting this issue, I have a parts car and need to pull all the possible parts that could solve the issue this week, if you could reply with possible harnesses to replace along with any other possible diagnosis I would appreciate it, my email a dress is billmelater222911@gmail.com

My car has 180000 miles.
My car has an automatic transmission.

Hello. Most of the time this is not a harness problem. It is typically caused by an issue with the combination switch. This switch typically shorts internally and causes this. I have also had fuse box issues that have caused this but that is not as likely. The only way to know for sure would to test the circuit with a voltage meter to see where the voltage is lost, which is typically at the switch. If you need help with fixing this taillight issue, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose why the lights are not working.

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!

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: Door sensor

The door switch is located on the driver's door latch. Try to lube the door latch first to see if it is binding. If it is binding, then you will most likely need to replace the latch and switch at...

Q: The car while driving just dies on me and now can't get it to start again, and the OBll code is p0452 ( evaporative emission contr

Hi there. Is there fuel in the tank? Is the fuel gauge accurate? It sounds like you're either out of gas or the fuel pump may have failed. The stored code that you have will not generally cause the vehicle...

Q: Higher revs required to shift between gears

Hi There, This can happen for a few different reasons such as low transmission fluid or a faulty control solenoid. An automatic transmission requires hydraulic pressure generated by the transmission fluid that gets pushed through a series of chambers inside...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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.