Skip the auto shop - Our mechanics make house calls

Q: Headlights

asked by on

I've been having a headlight issue for the past month. The brights work except for the passenger side and the low beams don't work. The drivers side on high beam is as bright as it can get and the parking + hazard lights work perfectly. But I need to know why the passenger side light is dim and low beams don't work at all

My car has 168000 miles.
My car has a manual transmission.

Hello. Your issue may be caused by one of several factors. The typical issues like this with the headlights pertain to a bad relay, connection, socket, or dimmer switch if equipped. If you have a voltmeter, you can track down the component that has failed. Check your fuses and relays before getting into circuit testing. Also check the dimmer switch. If these both are ok, you will need to further trace through the circuit. Start at the bulb end and check to see what the voltage available is there first. If there is the full available voltage the socket has gone bad and will need to be replaced. If there is no voltage, then move up the circuit to the next component where there should be voltage and check there next. Eventually you will find where the voltage drops and that is the component which is to blame. Start by checking the basics, and moving through the system further if needed.

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

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: My altema 2005 something shakes badly when I start the engine and the check engine light goes on and off few times then dissappear

Hi there. Typically when an engine shakes really bad, it's caused by a vacuum leak, a disconnected or malfunctioning fuel system component or an ignition system component failure. It is also possible that motor mounts are loose and may need...

Q: Truck making thunking noise and not starting.

The most common problem for the engine that will not crank if the battery is good is the starter. I recommend that starter is checked for proper power getting to it from the battery and the ignition switch before replacing...

Q: I have dodge dakota 2003. I replaced the waterpump and thermastat but my truck is still overheating i have to constantly put fluid

Hi there: An engine will overheat any time the cooling system is malfunctioning (i.e., when the coolant doesn’t absorb, transport, and dissipate heat effectively). There are several individual components that comprise the cooling system on our 2003 Dodge that could...

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...
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...
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...