Skip the auto shop - Our mechanics make house calls

Q: Headlights stop functioning after starting SUV

asked by on

When I activate the headlights, they stop functioning after I have started my SUV. I went to an independent mechanic and he replaced the lamp control relay fuse. He has done this two separate times. He also reported that there is damage to the fuse box and that the head lamp driver module has melted. Fortunately, it did not cause a fire, nor smoke. Before proceeding with more replacements, I would like your assessment since the lamp control relay fuse has already had to be replaced “twice.” Thank you.

A: Hi there, thanks for writing in about your ...

Hi there, thanks for writing in about your 2008 Saab 9-7x. The circuit protection devices are trying to warn of an issue in the system. The rest of the electronics along the lighting circuit must be inspected to prevent further damage. Something had to go wrong in order to melt and electronic module. Common finds are faulty light bulbs and malfunctioning modules. If you would like to have this checked out, a certified technician from YourMechanic can inspect the headlights at your home or office in order to pinpoint the problem and conduct a repair.

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: Car running fast after warmup.

Having your car run fast like this sounds like a frustrating experience. Let us get you pointed in the right direction so you can drive your car worry-free. The symptom you are experiencing with your vehicle sounds like something called...

Q: might need a new ECU

The vehicle will not start if it is not programmed to work with your vehicle key immobilizer. You will need to have the ECU programmed for it to work.

Q: 22-gallon tank will only fill to 10 gallons

The fuel level sensor may be experiencing a malfunction especially if there have not been any performance concerns. Unfortunately, it is inside the fuel tank and must be removed to examine the contacts. This is common among many year models....

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.