Headlight relay buzzing
09-23-2008, 07:50 AM
#11
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It was here now it's gone 
maybe someone had a liability issue
dsy had posted it on page 2
Last edited by renegadelt1; 09-23-2008 at 07:53 AM.
09-23-2008, 09:29 AM
#12
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woh, crazy, now i see it. that was really weird... glad renegadelt1 couldn't see it either...at least i know i am not crazy
Last edited by mtnmedic; 09-23-2008 at 09:32 AM.
10-10-2008, 09:30 AM
#13
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Just wanted to add my $.02 to this thread;
I just installed a set of HID headlamps and Foglights from XenonWorx in my '08 Rubi Unlimited. Their kit is the bulb-replacement type that use the factory reflectors, and the Hi-beams actually cause the bulbs to move in their socket to change the reflection angle.
They came with a harness that seemed to include a "Can-Bus fix" circuit, as the harness has its own power & ground leads, as well as a "little black box" in the middle of the harness. Sure enough, when Iplugged it all in, the ECU was happy, but the little black box buzzed when hi-beams were activated while the motor was running.
I was able to fix the buzz by simply putting a 25v 100uF Capacitor across the hi-beam & neutral leads of the OEM light connector - in Parallel with the rest of the HID harness. If I used any higher a value capacitor, the buzz still stopped, but there was a perceptible delay (>2s) between turning off the highbeam switch, and the beams actually turning off. I didn't go any lower than 100uF. There's still a 'delay', but it's in the order of 300ms.
Just thought that this might help anyone else who reads this thread. (Because I didn't have an obvious automotive relay in my HID harness, nor did I want to throw it away.)
I just installed a set of HID headlamps and Foglights from XenonWorx in my '08 Rubi Unlimited. Their kit is the bulb-replacement type that use the factory reflectors, and the Hi-beams actually cause the bulbs to move in their socket to change the reflection angle.
They came with a harness that seemed to include a "Can-Bus fix" circuit, as the harness has its own power & ground leads, as well as a "little black box" in the middle of the harness. Sure enough, when Iplugged it all in, the ECU was happy, but the little black box buzzed when hi-beams were activated while the motor was running.
I was able to fix the buzz by simply putting a 25v 100uF Capacitor across the hi-beam & neutral leads of the OEM light connector - in Parallel with the rest of the HID harness. If I used any higher a value capacitor, the buzz still stopped, but there was a perceptible delay (>2s) between turning off the highbeam switch, and the beams actually turning off. I didn't go any lower than 100uF. There's still a 'delay', but it's in the order of 300ms.
Just thought that this might help anyone else who reads this thread. (Because I didn't have an obvious automotive relay in my HID harness, nor did I want to throw it away.)
02-07-2009, 07:31 PM
#14
JK Junkie
Just wanted to add my $.02 to this thread;
I just installed a set of HID headlamps and Foglights from XenonWorx in my '08 Rubi Unlimited. Their kit is the bulb-replacement type that use the factory reflectors, and the Hi-beams actually cause the bulbs to move in their socket to change the reflection angle.
They came with a harness that seemed to include a "Can-Bus fix" circuit, as the harness has its own power & ground leads, as well as a "little black box" in the middle of the harness. Sure enough, when Iplugged it all in, the ECU was happy, but the little black box buzzed when hi-beams were activated while the motor was running.
I was able to fix the buzz by simply putting a 25v 100uF Capacitor across the hi-beam & neutral leads of the OEM light connector - in Parallel with the rest of the HID harness. If I used any higher a value capacitor, the buzz still stopped, but there was a perceptible delay (>2s) between turning off the highbeam switch, and the beams actually turning off. I didn't go any lower than 100uF. There's still a 'delay', but it's in the order of 300ms.
Just thought that this might help anyone else who reads this thread. (Because I didn't have an obvious automotive relay in my HID harness, nor did I want to throw it away.)
I just installed a set of HID headlamps and Foglights from XenonWorx in my '08 Rubi Unlimited. Their kit is the bulb-replacement type that use the factory reflectors, and the Hi-beams actually cause the bulbs to move in their socket to change the reflection angle.
They came with a harness that seemed to include a "Can-Bus fix" circuit, as the harness has its own power & ground leads, as well as a "little black box" in the middle of the harness. Sure enough, when Iplugged it all in, the ECU was happy, but the little black box buzzed when hi-beams were activated while the motor was running.
I was able to fix the buzz by simply putting a 25v 100uF Capacitor across the hi-beam & neutral leads of the OEM light connector - in Parallel with the rest of the HID harness. If I used any higher a value capacitor, the buzz still stopped, but there was a perceptible delay (>2s) between turning off the highbeam switch, and the beams actually turning off. I didn't go any lower than 100uF. There's still a 'delay', but it's in the order of 300ms.
Just thought that this might help anyone else who reads this thread. (Because I didn't have an obvious automotive relay in my HID harness, nor did I want to throw it away.)
02-07-2009, 09:43 PM
#15
Not having anything around to build a harness for the Cibies and 80/85 watt bulbs I just ordered the Susquehanna Motorsports harness specifically designed for this conversion, and it works perfectly.
04-08-2009, 07:51 AM
#16
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Just as a quick note:
The diagram specifies a 220pF Capacitor and that is likely a misprint. It should be 220uF. 220 picoFarads are not polarized and are much to small for this application, the 220 microFarad seems more in-line with reality and they are polarized.
BTW: Nice write up !
The diagram specifies a 220pF Capacitor and that is likely a misprint. It should be 220uF. 220 picoFarads are not polarized and are much to small for this application, the 220 microFarad seems more in-line with reality and they are polarized.
BTW: Nice write up !
04-15-2009, 04:09 AM
#17
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Thanks for the write up I've got to do this I have kc daylighters doing the same thing, I connected onto the high beam wire at the light and went to the relay mounted on the firewall beside the battery.
07-16-2009, 01:41 PM
#18
JK Enthusiast
does anyone know if the capacitor trick is needed with the factory foglights as well? . . . I need to switch my recently purchased ballasts with digital ones (which I am told by galmax will work with the canbus system) and need to know if I need to switch boith sets or just one.
10-26-2009, 08:03 AM
#19
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Relay with diode
Would a micro relay with diode protection avoid the need to solder one on the cable coming from the high beams?
I have 4 hellas FF75 to install on my roof rack, I'm trying to keep it as simple as possible...
I have 4 hellas FF75 to install on my roof rack, I'm trying to keep it as simple as possible...
10-26-2009, 09:15 PM
#20
JK Enthusiast
In theory yes . . . if they have one rated for enough amperage. I wouldnt go less than 30 or 40 amps . . which is why the standard 5 pin Bosh Relays are so popular I think.