Q: Headlight going off

asked by on

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

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?
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. Q: Headlight going off

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: I have a 03 Infiniti g35... And the temp gauge needle wont go all the way down and it sticks when i turn the car off

Hi there. Quite often this issue is caused by a malfunction of the radiator temperature sensor, which is located on the top of the radiator neck. In some cases, the electrical harness that connects the sensor or the sensor itself...

Q: My Interior light won't turn on like the gauges and radio screen.

The interior lights are on a timer in the vehicle. This timer is a Ballast resistor that keeps the lights on for a short period of time when the doors are shut. The resistor maybe shorting out causing the lights...

Q: My gas gauge is stuck on full

This problem is likely related to your fuel tank sending unit. This is a small float type component inside your fuel tank that measures the level of the fuel inside the tank. As the fuel level drops, the float level...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
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.