DDM HID - doesn't always fire up every time?
DDM HID - doesn't always fire up every time? This is odd, sometimes my DDM HID low beam don't always fire up. One will fire but the other will not. This seems to happen every other week? Anyone know the cause of this 
I wonder if it means I need a relay...
I wonder if it means I need a relay... ^^^ What he said
http://cgi.ebay.com/ebaymotors/9005-...Q5fAccessories
Recently installed one myself.
http://cgi.ebay.com/ebaymotors/9005-...Q5fAccessories
Recently installed one myself.
I have one.. 2 actually.. but I left them off because I have no idea how to wire them! How in the hell do you wire it? My DDM lows ballast on driver side quit because of not having a relay
The red wire with the fuse(#3/#7)goes to the positive side of the battery.
The black wire(#4) should be grounded to the chassis.
Basically, the male plugs(#1 and #2) from the harness is the power plug that will feed power to the ballasts.
However, you should have only one female plug(#5). That female plug has to be plugged into the passenger stock light harness.
Last edited by Ruthless909; Sep 1, 2010 at 06:41 PM.
i have the same problem on my E36. You either need a power relay harness as pictured above, or you have a bad ballast. I had a bad ballast. Change your ballasts from one side to the other and see if the problem follows one of them. If that doesnt work then try your bulbs.
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I said in my OP that this only happens once every other week or so. My ballasts and bulbs are fine - for now.
Do I need 1 relay or two? It looks like I only need one. After examining the relay, how do the headlights know when to turn on if the only power supply is straight from the battery? There's no input switch that tells the relay to start drawing power? Like an 85/86/87/87a/30 relay.
Do I need 1 relay or two? It looks like I only need one. After examining the relay, how do the headlights know when to turn on if the only power supply is straight from the battery? There's no input switch that tells the relay to start drawing power? Like an 85/86/87/87a/30 relay.
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Staging Lane
Joined: Aug 2010
Posts: 79
Likes: 0
oh i ordered that from ddm when i bought my kits (the dual in dual out wire harness) but i never used it cuz i didnt know how to install it so basically i can f**k up my wiring and lights if i dont use the relay wire?
Someone said that you can lose a ballast by not running the relay if you're having problems. I guess that really could go either way, depends on design and components used. I intend to run a relay just so I can have my headlights every time. I could wire in an 85/86/87/87a/30 relay rated for 40 AMPS for cheap but the relay harness in ebay is like $8.50 shipped...
The red wire with the fuse(#3/#7)goes to the positive side of the battery.
The black wire(#4) should be grounded to the chassis.
Basically, the female plugs(#1 and #2) from the harness is the power plug that will feed power to the ballasts.
However, you should have only one male plug(#5). That male plug has to be plugged into the passenger side.
Thanks!!
Staging Lane
Joined: Aug 2010
Posts: 79
Likes: 0
so did u guys cut your stock wires --or do these work straight from the battery
Staging Lane
Joined: Aug 2010
Posts: 79
Likes: 0
Staging Lane
Joined: Aug 2010
Posts: 79
Likes: 0
if u have a trans am i think this is what u need to fit into the socket
http://cgi.ebay.com/ebaymotors/H7-HI...Q5fAccessories
http://cgi.ebay.com/ebaymotors/H7-HI...Q5fAccessories
