Hello fellows. This is something am not familiar with. My brother knows nothing on electricals nor automobiles and asks me if I can send repair parts overseas for such vehicle, but I want to learn first before goofing.
Headlights use some sort of ballast? , reading about there may be 2 or 3 styles fitted from factory; and cannot identify which. HID, - Xenon, - LED, - halogen. There is supposed to be a computer controlling only lighting systems, being one of the items requested as spare. Other is ballasts, other is a 'junction/fuse box', plus bulbs. (He is trying to cover all bases by ordering all pertinent parts)

- How to identify which type of lights is factory fitted in the vehicle ?
- How does it work ?
- Where are those modules located, to pull them from a boneyard ?
- Can the bulbs be tested just applying 12VDC ?
- Saw a video to retrofit ! HID system to halogen. Would be good to get rid of compfuser complications just to turn on headlights. Any knowledge about it ?

 

The headlights are HID (High Intensity Discharge). No doubt the ECM is programmed to operate them and putting conventional headlights in the car will require programming the ECM.

Which parts need replacing?

 

Perhaps not the ECM, but the BCM, or the dedicated headlights control module, or a ballast, or a whoknowswhat... Still digesting symptoms and diagnosis to find what failed.
Once there was a switch and 2 bulbs solved in 1 minute. Now it is a thousand dollars plus in parts and 'specialized' repair labor with computer diagnosis and after guessing for a while for whoever has the service manual. There is level sensors, servos to compensate car leveling , day lighthing, timing, fading... loads of unnecessary crap.

 

Perhaps not the ECM, but the BCM, or the dedicated headlights control module, or a ballast, or a whoknowswhat... Still digesting symptoms and diagnosis to find what failed.
Once there was a switch and 2 bulbs solved in 1 minute. Now it is a thousand dollars plus in parts and 'specialized' repair labor with computer diagnosis and after guessing for a while for whoever has the service manual. There is level sensors, servos to compensate car leveling , day lighthing, timing, fading... loads of unnecessary crap.

Amen to that! I’m in the throes of madness with my sister’s 2015 Jeep. (Another post)

 

I did a little searching online and found the wiring itself looks to be the same as a standard light assembly. One 12V pin for the low beam, one 12V pin for the high beam, and so on. Unfortunately all I could find were thumbnails and previews so most details were not easy to make out.

If the vehicle has the standard 17 character VIN number you may be able to find information at https://eautorepair.net
Even if it doesn't (I don't know how things work overseas) you still may be able to get information from it.

It will cost a little ($20 for 1 month), but they just reformat OEM documentation, wiring diagrams, troubleshooting charts, and some other information. I was introduced to the pro version at a previous job and it's been a lifesaver for a few of my own repairs.

Edit:

I just did a quick try and was able to select a 2009 Toyota Venza on the site I linked. Obviously I stopped at the payment screen though. It seems hit or miss on the VIN requirement, but it doesn't seem to be the case this time (maybe something to do with a particular vehicle I looked up).