Volvo headlight

[Pablo-UA]

but if I swap LCM processor from EU Cabover I get all parameters, HID related available, but, it requres rewiring of headlamps like on EU truck (easy) and European taillamps with yellow dir light, rear fog lamp (it is like taillamp, but bright left bulb) and work lamp rewiring. So before 2010 US software for LCM was not HID ready. The only way - you can disable low beam bulb fail monitiring

[v6killer]

I found the problem, that some parameters will not be available with US software, so with some ballasts LCM reads low beam fault code

It seem to me the dealer dose not know what they are doing, to disabling the low beam head lights ( so it dose not show a short in one of the head lights in question )

Pabla-UA can you send me the parameter change for the VCAD. to disable the low beam short.

the dealer said, all they did was change to value from 100 to 500, but it still show an short in the display for one of the head lights, and only one HID head light will light up.

On my truck, I took it to an different dealer ( Volvo ) they new how to disable the short for the low beams, the dealer is about 180 miles away.

I found this code, for the Volvo VCAD MID 216: ANJ for left headlamp and ANK for right.

Is this the right parameter to change the low beams setting?

[Pablo-UA]

really there is no manual how to change parameters and dealers have limited parameter change database file.

[Pablo-UA]

ANK - right low beam current detection - set to disable
ANJ - left low beam current detection - set to disable


Newer LCM got XENON LIGHT parameter for HID FHL

[AlbanyTrans]

We have a bunch of '05-'06 Volvo VN's and generally end up replacing the entire headlamp assembly. Of course they're not cheap. I've tried those headlight lens polishing kits, but with poor results. They're a bit better but it's just not enough. Typically end up replacing the foglamp assemblies too, they get really pitted from road debris.

[Pablo-UA]

fortaunatly of EU cabovers we have glass lence. No dim, but road stones brake them.

internally Cabover and VN headlams are different but similar. And they share problem of low beam reflector dim. Low beam projector is made of alloy with aluminium silvering and we had to take headlamp apart to send reflector to resilvering shop. With US VN headlamps no lence as part available and the problem is that polishing solver sufrface problem only. Old headlamp got dim inside lence.

[headlampman]

Has anybody taken apart a 04 or newer VNL headlight? Mine is turning yellow on the inside, I've been able to keep the outside clean but now the inside is giving me grief.

It’s not actually the inside that turns yellow, but the outside of the plastic lens under the clearcoat. The clearcoat is formulated to do two things 1). Prevent scratches; 2) inhibit UV degradation of the plastic lens material. The problem is that the UV protectant has only a limited life expectancy (supposed to be 10 years or 100k mile equivalent sunlight exposure). When the protectant breaks down, the plastic material starts to degrade and turns yellow-ish.

There is only one company that I know of that is ‘approved’ to recoat the lenses of these lamps (not just Volvo lamps but all plastic headlamp lenses) to meet original OEM specifications. I can’t recall their name but will look them up and repost. It is my understanding that they own a patent on “headlamp lens refurbishing” and are doing it like the OEMs (unlike these schlock fly-by-night outfits on every corner).

[headlampman]

Current truck had this problem and didn't put out enough light to run down the road without the foglights on (which I never run otherwise). At that point, I was actually using the light from the fogs more than the headlights.

Try replacing your factory H11 low beam bulbs with H9 bulbs (they aren't technically interchangeable, but it is possible to do). This is what I did on a car I drive that used H11 bulbs for the low beam and it made a HUGE difference in light output at minimal cost. Here’s why: a standard H11 bulb produces only 1,350 lumens of light where an H9 bulb produces 2,100 lumens of light. That’s a 55% increase in light output for under $10 per bulb. Now, only about 50% of the light emitted by any particular bulb actually makes it into the pattern on the road, so for an H11 bulb you will see about 600 to 700 lumens on the road (fairly dim by modern headlamp standards), but with an H9 you will see between 900 and 1,100 lumens on the road (similar to what the original OEM HID bulbs originally produced). Since there’s only a 10 watt per bulb difference between the two bulbs, the added load on the vehicle electrical system is negligible. You’ll need to slightly modify the H9 bulb to mate with the H11 vehicle harness, but it’s an easy modification to make! I’ve been running H9 bulbs in the low beam projector lamps for a few months now and am really happy with the dramatic increase in light output over the H11’s.

Here is a link to a forum that discusses the modification of the H9 bulb to work on the H11 harness.

http://forums.nasioc.com/forums/show....php?t=2083911

BTW... Don’t be tricked into buying any of these ‘special’ high output H9 or H11 bulbs advertized everywhere as most are junk and have very poor life (and most actually emit less light than the standard H9 bulb from either Osram, Sylvania or Philips). I’m running Osram H9’s and I love them. They’re very reliable and you can buy them pretty much anywhere. You should be able to pick them up for between $5.00 and $8.00 each. Please note that H9 bulb life is indeed shorter than that of an H11, BUT still longer than almost all of these ‘special’ bulbs that cost 5 times more!

[headlampman]

I did. Plastic lence is secured with glue, I used scalpel to cut it out.

Don't waste your time. You'll only make a mess of the lamp and NEVER get it sealed back up again -which means you'll always have moisture inside your headlight (something that also inhibits performance).

[Pablo-UA]

I used to assembly all back well. To avoid moisture inside I used to put some granulas from air drier cartrige inside.