Skip the auto shop - Our mechanics make house calls

Q: Headlight going off

asked by on

After replacing the ballast, the headlight on the driver's side keeps going off.

A: There are 3 items in the xenon light circui...

There are 3 items in the xenon light circuit responsible for igniting the bulb. According to Infiniti’s TSB on xenon light, they recommend replacing the bulb first, and that will solve most problems.

The HID control unit, and the harness with the bulb socket, (called the starter,) are also replaceable. The HID unit and starter are usually sold together as one unit. If you have replaced this, then the bulb would be the next logical part. Swapping of parts from left to right, one-at-a-time, to see at what point the malfunction moves from the left side to the right side, is really the only way to diagnose this type of issue. You may want to enlist the help of a mechanic, such as one from YourMechanic, who is trained in the diagnosis of xenon light circuits, inspect the issue with your headlight system, and recommend the best path to 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: Why my right wheel is squealing?

Hello and thanks for contacting YourMechanic. The control arm that you put on your Infiniti is probably not the same as the OEM parts. This will change the alignment angles for camber, caster, and toe. Check the old control arm...

Q: Hi oil leaking white smoke and then it clears besides that car runs good

White smoke is usually a sign of a blown head gasket or coolant leak as this is typically an indication that the coolant is being leaked into the combustion chamber and being burnt with the air/fuel charge which is what...

Q: If i supply both front wheel hub assemblies, what will the total installation cost be to?

Sent billing question to CS for installation of the front wheel hub assemblies.

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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.