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HID's Problem

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Old Dec 29, 2009 | 11:42 AM
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Default HID's Problem

Installed HID's in my truck... Now they don't turn on...

I was told I need a resistor and stuff... Anyone have that info. for parts list
and what to do???

Thanks
 
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Old Dec 29, 2009 | 12:02 PM
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I would reccomend doing a Search. There's a disgusting amount of threads/info regarding your problem.
Spend some time to help yourself before you expect others to join in. Don't just join to get your solution and then your on your own way again.

This is what the Search method is used for. newbie's shouldn't be asking ANY questions until they have been doing some searching for a few weeks as there is more info using the search than you'll get using one Thread looking for an answer.

https://dodgeforum.com/forum/search....archid=1361097
 
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Old Dec 29, 2009 | 12:15 PM
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^^ agreed. there should be a permanent thread at the top with a link to the search and DIY section that says check here first. The worst is the tire size/fitment. Sorry Turkey, not trying to rag on you, its just people ask the same questions over and over! Check out the search function, you'll find tons of info. I believe someone had this very question answered today or yesterday with all the needed information. Just go to search and type HID.
 
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Old Dec 29, 2009 | 12:38 PM
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IIRC turkey, for the 05 and under, you do need a couple 20watt resistors (8 ohms I think ??) The 06+ use a relay to fire'em up.

As mentioned ^^^ search around a bit, plug in different keywords, see what you can find. And for future reference, add in a little bit more info on your truck and the problem/situation you have.

When searching the forum on this topic, just look for any threads that WEEDAHOE has responded to. Not that he's necessarily the most knowledgeable on here, but I found, upon searching, that he's tried to respond to everyones thread on this issue, and does know quite a bit (as do many other members). He has even given a link to the Radioshack website with the correct resistors needed.

Good luck partner, and welcome to DF! If ya plan on hanging around after this, better get some pics up, and getcha a bigger wallet!!!!
 
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Old Dec 29, 2009 | 03:04 PM
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Ok, here we go. As you know our trucks monitors the bulbs. Our halogen lights are 55w bulbs. Halogen bulbs have a filament inside them that lights up with electrified. HID bulbs use gases and salts and when combined with HIGH voltage (thats what the ballasts are for) they produce a plasma based light output.

Ok, because the HIDs have no filament inside them, the truck cannot detect there actually is a bulb and therefore give you the Lamp Out light on the dash and because there is theorietically no bulb, theres no reason for the trucks FCM to send 12v to the bulbs.

Now, you do need a relay on the ballast because the initial startup pulls tremendous voltage surges. The OEM wiring is 18ga wiring. Some people say it can handle it, others differ. But we put relays on the harnesses to PROTECT our trucks and FCM and wiring from being possibly damaged. The trucks OEM headlight wiring only supplies 12v to the relay COIL and not the contacts. The relay contacts are wired directly to the battery and ballast(s). So when you turn on the lights, the 12v engergizes the relay coil which in turn closes the relay contacts with in turn takes voltage from the battery and supplies it directly to the ballast(s). A SPDT relay coil only needs about 200mA of voltage to engergize it. Anyone who does alarms or remote starts knows what im talking about.

Now, this all will ONLY happen IF the truck detects the bulbs and as we dicussed earlier, this will happen one of two ways. One is with halogen bulbs which we wont be having with HIDs and ballast so the only other option is the have load resistors that will SIMULATE the actual resistance or load that needs to be detected by the FCM to send 12v to the bulbs (or in this case the relay).

The trucks OEM headlight wiring has 3 wires. One in 12v for the high beam. One is 12v for the low beam and the last one is the common or AKA ground.

You should only really need two load resistors per side. Obviously this has 2 ends to it. If you take them scotch-loks and use them, one end of the load resistor will go on the 12v low beam wire and the other end of the load resistor will go on the common wire or AKA ground. the other load resistor goes from the 12v on the high beam and the other end to the common (AKA ground)

This will simulate the physical filament in the bulb which is needed by the trucks FCM to keep the Lamp Out light off, supply 12v to the relay which gives power to the ballast and fires the HID bulbs.

I hope all that makes sense because Im tired now. ;-)

2pcs 6 Ohm 50W Turn Signal LED Bulbs Load Resistors







 
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Old Dec 29, 2009 | 04:23 PM
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Weed, your too kind. i think we need to stick you in a play pen with RH for a bit to turn you sour....lmao
 
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Old Dec 29, 2009 | 04:40 PM
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Lol Weed, Im SICK of seeing those two damn pictures!! haha.....
 
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Old Dec 29, 2009 | 04:52 PM
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Well GD'it if you would teach these noobs how to search (including Google) and wire in a simple pair of resistors we would have this same question at a minimum of 3x a day.


Hows that for sour?
 
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Old Dec 29, 2009 | 05:04 PM
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Check THIS place out for wiring diagrams and such...Newb.
Maybe it'll help you more than my first post?...lol

Although, I'm sure you still searching around on the internet rather than inside this forum for your answer. Searching inside specific forums will yield greater outcome of solutions than wildly searching the internet. It does for me.
 
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Old Dec 29, 2009 | 05:35 PM
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I can say the guys on the12volt forums are good for helping with wiring and such as are some of them on the specific HID boards. You just have to know where to look and ask. Nothing wrong with getting help here either. Just dont ask DirtyDog or RH
 
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