So installed some HID's on a 2010 this afternoon and when the lights are in "automatic" mode, you can hear a buzzing or humming noise from the engine bay. when you turn the lights off and on manually the buzzing/humming noise is there. to install the HID's i had to install a wiring harness with it as well and needed to disconnect the battery, could this be why? wondering if this noise will go away or what i can do.
Automatic Lights Buzzing Noise
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I'd guess it's the ballast. Follow your ears, and if they both are humming, then that is probably "they way they are". If it is just one, then you can try switching the two ballasts, and if the hum goes to the other side, then it is a bad ballast. If the hum stays on the same side, then it is a problem with the wiring - maybe a bad ground.515tinter said:
Report back !
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I too had the same thing.I even replaced the relays with 4 different sets.515tinter said:
Still had the buzzing while the lights were left in auto mode.But if you turn the lights on the sound goes away.
My solution take out the relay wires.Just use a ballest to the lights no relay.
Have a look on the forum , you will see my installation without the relays.
NO noise at all and the lights work 100% no issues.
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was this during the day or at night? from what 515 said, it's probably the relay. i heard the same thing when i tried out a relay briefly, but this was during the day. when i turned the lights on manually in the garage, there was just one click from the relay and that was it.
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