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post #1 of 12 Old 06-01-2008, 02:27 PM Thread Starter
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HELP DRL Voltage

Does anyone know or can anyone check what the voltage out put to the highbeams running as DRLs are on a 06 honda accord ex v6?

i have been asking everyone i know here for either the info or a voltage tester no one has either. i figured id post here before i go out and buy one.

thanks in advance


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06 Honda Accord v6 EX Sedan
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JDM rear safety plate
K&N short ram intake
HALO 8,000 HID kit for low beam
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post #2 of 12 Old 06-03-2008, 05:26 PM Thread Starter
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Sapphire Blue Pearl
06 Honda Accord v6 EX Sedan
Clifford Matrx 50.5 alarm system

JDM rear safety plate
K&N short ram intake
HALO 8,000 HID kit for low beam
6,000 HID for high beam
V-LED Switchback White/Amber parking/turn signal lights
LED interior and accents
LED rear turn signals
LED License plate lights

Whats next?... maybe fogs...
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post #3 of 12 Old 06-03-2008, 06:18 PM
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My burning question is why and how this piece of info would be helpful to you?

And just for the heck of it, I did go check just now. I took one high-beam connector off, turn the ignition to ON, lower the handbrake (with rear wheels blocked), surprisingly the other headlight did not turn on!

This suggests to me that what Honda did is to run the two high-beam bulbs in series for DRL, therefore the second high-beam bulb won't come on if the first one is burnt-out (or in this case purposely disconnected) since the series circuit is broken.

I then had a quick look of the factory shop manual I just received today, there was no specific description of how DRL is implemented, however the electrical diagram strongly suggested the series arrangement, although there wasn't complete information that I can be 100% certain of, it's most likely from the way the wiring diagram is shown.

So, to answer your question, the voltage is divided to both high-beam bulbs in the DRL mode, therefore each bulb receives 1/2 of the battery voltage, or 6 volts (nominally) each in the DRL mode.

2005 Satin Silver V6 Coupe 6 speed
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GM Friction Modified Synchromesh transmission fluid,
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Clutch slave cylinder restrictor valve delete.

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post #4 of 12 Old 06-04-2008, 10:09 AM
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Quote:
Originally Posted by Aviography View Post
So, to answer your question, the voltage is divided to both high-beam bulbs in the DRL mode, therefore each bulb receives 1/2 of the battery voltage, or 6 volts (nominally) each in the DRL mode.
Ok. After a brief search, the Wiring PDFs I've come across have no voltage indication regarding a reference voltage connection. The only indication illustrated is "Hot At All Times". I see Honda has more grounding relay control designs which somewhat differ from domestic manufacturers (I really need to become more familiar with imports like I am with domestics). The schematics I've come across do NOT state SPECIFICALLY what type (or level) of voltage "Hot At All Times" is. The default assumption would be 12V if stating battery voltage, but this does not state battery voltage as it does state SPECIFICALLY "battery voltage" with regards to normal switched headlight relay functions.

Long story short, there's no distinction of whether it's 12V battery voltage or otherwise. I'll try to download all the PDFs that make up this manual, and maybe a DA admin can upload it to DA's server. In the meantime, just click the following links.







Who knows, maybe the DA GURUs have this info stored sometwhere already? Have fun!

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'12 Tundra CrewMax 5.7L V8 (Work Horse)
'07 Accord SE V6 #2 (My Commuter Car)
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---------- OLD RIDES ----------
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post #5 of 12 Old 06-04-2008, 07:20 PM
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Those are some great links, the wiring schematics are slightly different than the hard copy version, but there are some links to the photos which are very good too.

I almost wished I'd come across these URLs before I bought the facotry manuals recently, however they were at a very good price so I don't regret it.

2005 Satin Silver V6 Coupe 6 speed
TL shift knob, Hidden Hitch, Venture Shield clear protetive film,
GM Friction Modified Synchromesh transmission fluid,
2007 Acura TL-S front/rear sway bars,
Clutch slave cylinder restrictor valve delete.

Acura TL 5-spoke rims 245/45-17 Bridgestone Pole Position RE970
Honda steel rims 225/55-16 Michelin Primacy Alpin PA3


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post #6 of 12 Old 06-04-2008, 07:43 PM Thread Starter
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sorry been slamed at work and i only check it at work. but anywho

i am trying to figure out what the voltage is because i am trying to set up some lighting but they need a minimum of 9 volts to light everything.

Sapphire Blue Pearl
06 Honda Accord v6 EX Sedan
Clifford Matrx 50.5 alarm system

JDM rear safety plate
K&N short ram intake
HALO 8,000 HID kit for low beam
6,000 HID for high beam
V-LED Switchback White/Amber parking/turn signal lights
LED interior and accents
LED rear turn signals
LED License plate lights

Whats next?... maybe fogs...
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post #7 of 12 Old 06-07-2008, 05:36 PM
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Quote:
Originally Posted by shigeo View Post
sorry been slamed at work and i only check it at work. but anywho

i am trying to figure out what the voltage is because i am trying to set up some lighting but they need a minimum of 9 volts to light everything.
I'll quote what I found...

-----------------------------------------------------
The DRL system works by supplying battery
voltage
in series to the two high beam headlights.
Applying voltage in series through the two
headlights will act as a resistor, and illuminate
each headlight 50%
.

The DRL relay is supplied power at all times. The
relay control module located in the under-hood
fuse/relay box will ground the coil of the DRL relay
to close the contacts and send battery voltage to
the high beam headlamps
.
-----------------------------------------------------

That answers your questions! Hope everyone can benefit from the links. I thought they'd give major insight to electrical curiosity.

Avio... If you remove one high beam connector & jump the pins on that connector, you should close the circuit result in full illumination of the one light that's still connected in the circuit.

'13 Maxima SV w/ Sport & Tech Pkg (Wife's Ride)
'12 Tundra CrewMax 5.7L V8 (Work Horse)
'07 Accord SE V6 #2 (My Commuter Car)
'95 Impala SS (The Project Car!)
---------- OLD RIDES ----------
'07 Nissan Armada (Traded)
'07 Accord SE V6 #1 (Traded)
'06 Accord SE (Wrecked/Totaled)
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post #8 of 12 Old 06-07-2008, 06:23 PM Thread Starter
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darn so not enough volts thanks for your help
where did you find that info?

thanks again

Sapphire Blue Pearl
06 Honda Accord v6 EX Sedan
Clifford Matrx 50.5 alarm system

JDM rear safety plate
K&N short ram intake
HALO 8,000 HID kit for low beam
6,000 HID for high beam
V-LED Switchback White/Amber parking/turn signal lights
LED interior and accents
LED rear turn signals
LED License plate lights

Whats next?... maybe fogs...
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post #9 of 12 Old 06-07-2008, 06:34 PM
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in the link I posted for the wiring schematics. searched the headlight related sections, and it was there. and read the section on DRLs. I explains how it works.

'13 Maxima SV w/ Sport & Tech Pkg (Wife's Ride)
'12 Tundra CrewMax 5.7L V8 (Work Horse)
'07 Accord SE V6 #2 (My Commuter Car)
'95 Impala SS (The Project Car!)
---------- OLD RIDES ----------
'07 Nissan Armada (Traded)
'07 Accord SE V6 #1 (Traded)
'06 Accord SE (Wrecked/Totaled)
'94 Civic EX (Sold)
'86 Silverado C10 (Sold)
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post #10 of 12 Old 06-07-2008, 06:43 PM
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Quote:
Originally Posted by zro26t View Post
Avio... If you remove one high beam connector & jump the pins on that connector, you should close the circuit result in full illumination of the one light that's still connected in the circuit.
Oh, I *knew* that, but that wouldn't have proven much of anything, and what I observed was how I came up with the conclusion that the two high-beam lamps must be connected in series in the DRL mode, and each lamp receiving 6 VDC.

What you had quoted from the Honda documentation confirmed my theory.

2005 Satin Silver V6 Coupe 6 speed
TL shift knob, Hidden Hitch, Venture Shield clear protetive film,
GM Friction Modified Synchromesh transmission fluid,
2007 Acura TL-S front/rear sway bars,
Clutch slave cylinder restrictor valve delete.

Acura TL 5-spoke rims 245/45-17 Bridgestone Pole Position RE970
Honda steel rims 225/55-16 Michelin Primacy Alpin PA3


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post #11 of 12 Old 06-07-2008, 08:46 PM
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Quote:
Originally Posted by Aviography View Post
Oh, I *knew* that, but that wouldn't have proven much of anything, and what I observed was how I came up with the conclusion that the two high-beam lamps must be connected in series in the DRL mode, and each lamp receiving 6 VDC.

What you had quoted from the Honda documentation confirmed my theory.
Well, yeah... an electronically savvy individual with some knowledge of electrical network theory could deduce that. You must be one! Theory is one thing. Proof of theory is what an engineer seeks. Great & logical nonetheless. Kudos to you, my friend!

'13 Maxima SV w/ Sport & Tech Pkg (Wife's Ride)
'12 Tundra CrewMax 5.7L V8 (Work Horse)
'07 Accord SE V6 #2 (My Commuter Car)
'95 Impala SS (The Project Car!)
---------- OLD RIDES ----------
'07 Nissan Armada (Traded)
'07 Accord SE V6 #1 (Traded)
'06 Accord SE (Wrecked/Totaled)
'94 Civic EX (Sold)
'86 Silverado C10 (Sold)
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post #12 of 12 Old 06-07-2008, 08:58 PM
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zro26t,

Kudos to you for finding those electronic manuals, got a link to the top level one for the overall manuals for 2003-2005? Or are they password protected? Please feel free to PM me if you feel it is more appropriate.

Thanks

2005 Satin Silver V6 Coupe 6 speed
TL shift knob, Hidden Hitch, Venture Shield clear protetive film,
GM Friction Modified Synchromesh transmission fluid,
2007 Acura TL-S front/rear sway bars,
Clutch slave cylinder restrictor valve delete.

Acura TL 5-spoke rims 245/45-17 Bridgestone Pole Position RE970
Honda steel rims 225/55-16 Michelin Primacy Alpin PA3


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