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Lighting Forum
Angel Eyes, DDEs, lighted rings, Clear Turn Signals, LEDs, Xenon, HID, or Bi-Xenon. If it lights up and you want to discuss it, post here!

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Old 04-28-2011, 09:15 AM   #1
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Join Date: Apr 2011
Location: NJ
Posts: 1
My Ride: E46 325XI
HID's turn off when Engine is On

Hi Guys,

I just installed a set of aftermarket HID's in my car, but they're not working properly... I installed them using a relay harness connected to the jump terminal and grounded on the frame.

Odd thing is, they work fine when the engine is turned off. No flickering at all ( I sat and watched them for 20 or so minutes.....). As soon as i turn the engine on, they'll begin to flicker and go off one at a time in about a minute.

I've ordered a pair of DDM error cancelation units, but when i contacted the HID manufacturer (KAZESPEED), they told me that the headlights should work fine without them.

Any ideas?

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Old 04-29-2011, 10:50 AM   #2
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Location: Bergen County, NJ
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I noticed you said that you connected this with a relay harness. If so, the error canceller WILL NOT fix your problem. What you will need to do is wire a resistor in parallel on the car's wiring side (not on the HID wiring side). The resistor will simulate the draw of the stock headlight and fix the problem. 2 things that you must do:

1. Wire it in PARALLEL, not in series. If you are not sure what I mean, let me know. Wiring in series will do nothing.

2. Mount the resisitor on metal because it will get very hot.

As for the resistor you need, you will have to measure the resistance of the stock H7.
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Old 04-30-2011, 12:04 AM   #3
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why are you using a relay harness? is it a 55w kit? if so, just follow justans10 instructions. if not, then no need for the harness. you can get the BOW units and use it with the HIDs on the factory harness. i still recommend your reflash the car instead of using the BOWs.
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Lighting-related Troubleshooting Guide
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error, flickering, hid

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