Is there any way to measure voltage output from certain wires in our h
01-05-2009, 06:06 PM
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My Ride: 2004 E60 530i, 2012 E70 X5 35i
Model Year: 2004
I'm thinking of doing a angel eye mod, but i wanted to know if its possible to measure the voltage that powers the angel eyes.
And what i would need in a device to be able to use that power and not give a error message.
Anyone know? radioshack volt meter or something?
And what i would need in a device to be able to use that power and not give a error message.
Anyone know? radioshack volt meter or something?
01-05-2009, 06:44 PM
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My Ride: 2008 550i Jet Black on Black Leather, SAT with Paddles, Logic 7, Comfort Seats, NAV, Sport Package, PDC, Xenons, Sirius, Trinity 12W LED Angel Eyes, RPi GT Exhaust, M rear spoiler, ACS Roof Spoiler, Tinted Tail Lights, Bimmian Carbon Fiber Pillar Trim, Bimmian Shadow 550i emblem, RPi Scoop, E60 Forum Cling, Mtec bulbs in fog lights, Mtec 2W LED for License Plate Light Bulbs, K&N Filter, Bimmian LED Smoked Side Markers, Blackout roundels, Carbon Fiber Kidney Grills.
Retired Rides - 1989 325i convertible, 1995 M3, 2002 X5, 2005 545i, 2008 X5 (Lemon)
How about the old 9 Volt Battery test....stick your tongue to it?? 
J/K 
J/K
01-05-2009, 06:50 PM
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Originally Posted by flyingpuck' post='760341' date='Jan 5 2009, 10:44 PM
How about the old 9 Volt Battery test....stick your tongue to it?? J/K
J/K 
01-05-2009, 08:48 PM
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My volt meter from harbor freight does the job quite nicely for only $5. But i would not try to power something else with them. I'd suggest using them for a relay and hard wire your hot line to the fuse panel.
01-05-2009, 10:58 PM
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I would bet it's 12VDC especially considering the stock bulb is incandescent. You can do any sort of trickery with resistors. I use a ceramic 25w/25ohm on my blinkers for my crappy LCI taillight upgrade (real connectors are being made for me now, thanks Bruce!).
The average draw of exterior bulbs on most cars I have worked with is 10 to 21 watts.
Be careful of relays if the power is significantly lower than 12VDC because your average 12V 5-pin Bosch type relay has a minimum spring rate of 8VDC, but anything close to that will make it flutter and eventually kill it. But if you do plan on powering something to time with the lighting of the halo's, like the other poster said, use relays - and be careful where you get your power source, because too much draw on another circuit might cause erroneous errors.
The average draw of exterior bulbs on most cars I have worked with is 10 to 21 watts.
Be careful of relays if the power is significantly lower than 12VDC because your average 12V 5-pin Bosch type relay has a minimum spring rate of 8VDC, but anything close to that will make it flutter and eventually kill it. But if you do plan on powering something to time with the lighting of the halo's, like the other poster said, use relays - and be careful where you get your power source, because too much draw on another circuit might cause erroneous errors.
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