Skip the auto shop - Our mechanics make house calls

Q: Headlights won't stay on

asked by on

I installed a canbus ballas 35 watt hid kit on my Dodge 3500 truck. The auto parts store told me the anti flicker is built in with a clean install plug and play, and that I shouldn’t need anything else. After I installed it I let it stay on for about 10 minutes, but it was shutting off then back on. Later, I was driving in the dark and turned on my headlights. About 2 minutes after that both of them shut off. They would not come back on no matter how many times I had turned them on and off. So now I had to drive with my high beams on for 2 hours. When I got to me destination I turned off my truck and then turned it back on. Only the driver’s side worked. Then I turned them on and off again, and they both worked. I started driving again an hour later, and the same thing happened. Do I need a resistor for both headlights? Can you tell me what I need to do? Thanks.

Hi. Usually when this happens it is due to the output of the ballast being unsteady. The new ballast may be defective which is causing your issue, which is somewhat common. Also, the ballast may not be receiving the proper power level. Some ballasts will require an external piece called a Canbus warning canceller to help supply steady power to it.

I suggest you have a technician test your ballast with a multimeter. Also check to see how many amps your HID’s require and compare it to the amps required by the standard lighting. If the amperage is broadly different you will need a bigger fuse and the Canbus warning canceller I’ve mentioned. I’d suggest getting your vehicle looked at by a qualified technician who will diagnose the issue with your headlights and fix it accordingly.

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: How do I use the wireless ignition node (WIN)?

The wireless ignition node (WIN) works very similarly to a standard ignition system. If your car comes with a remote keyless entry (RKE) key fob, then it also has a WIN system. To use the WIN, insert the RKE fob...

Q: When I drive a lightning bolt light comes up on the dashboard and the car loses power

The lightning bolt symbol comes up when the computer detects that there is an issue with the vehicle's electronic throttle system. Your vehicle is equipped with a throttle plate that is controlled electronically, and receives its input from the accelerator...

Q: Car won't crank up as well as some other electrical issues

This sounds like a BCM (body control module) malfunction. This could have been caused either by a low voltage issue or a voltage spike. If the electrical system is dead, there is a power fuse that comes from the battery...

Related articles

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.