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Power Issue With Headlamps/Hi Beams

Printed From: the12volt.com
Forum Name: Lights, Neon, LEDs, HIDs
Forum Discription: Under Car Lighting, Strobe Lights, Fog Lights, Headlights, HIDs, DRL, Tail Lights, Brake Lights, Dashboard Lights, WigWag, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=142837
Printed Date: May 02, 2025 at 7:16 PM


Topic: Power Issue With Headlamps/Hi Beams

Posted By: powerslave
Subject: Power Issue With Headlamps/Hi Beams
Date Posted: April 06, 2017 at 4:10 PM

In short:

When the car is off, there is steady power to the harness with the hi-beams
on. I installed a relay, so I can run HIDs off the battery, the relay
latches just fine when I turn the hi-beams on, motor not running. However,
As soon as you start the motor, the relay starts to buzz, the power has
changed from constant to a pulsed of some sorts, the HIDs will not stay
on anymore.

What do I add to the circuit to keep the relay latched, instead
of turning on/off so fast (as indicated by the buzzing sound)?





Replies:

Posted By: powerslave
Date Posted: April 06, 2017 at 4:32 PM
Looks like a 470uF 35V Cap installed on the coil...
posted_image




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