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Mk2 Xenon Headlamp Retrofit


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#16 jarp

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Posted 06 October 2013 - 04:06 PM

Unfortunatelly schematics wont say a word about locations of connectors or anything like that :/

I used a bit time to triple check schematics and really, there should be nothing else needed apart from wiring. To sum it up, halogen lights are driven by GEM, which takes inputs from Headlamp Switch and Multi Function Switch. Same goes with HID lights, they are driven by GEM etc. Hardware seems to be the same, connectors, wires and pin numbering etc. are the same.

However, with halogen lights there is wire from Headlamp Switch (manual leveling knob) to headlamp module(s) (for leveling motor of course). With HID lights there are no knob and this wire from lamps goes to HID Control Module instead, which takes inputs from Front Level Sensor and Rear Level Sensor.

Since the same physical wire and connector is used for leveling signal no matter if signal comes from manual knob or HID Controll Module, there seems to be "Jumper for Halogen Lights" which is used to reroute this signal (and some more signals for HID Control Module). I have no idea if this jumper is present on cars without HID lights...

Anyways, I would speculate that really, this would be needed to retrofit HID lights to Focus (again, if wirings would be the same):

- Add HID Control Module
- Add Front Level Sensor
- Add Rear Level Sensor
- Replace headlamp assemblys with HID versions
- Change "jumper for halogen lights" to HID position
- Use ELMConfig to check that you can communicate with HID Control Module. Configure it according to you car type.
- Use ELMConfig to reconfigure GEM for HID

I have NO IDEA if this actually would work or break something. But according to shcematics, this could be just enough... Now somebody please locate all these modules for us :)

Ps. No idea why I have headlamp washers. Perhaps original owner though it would be good idea to buy those as extras...



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#17 mixmasterlooney

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Posted 06 October 2013 - 04:57 PM

Excellent research Jari, i would imagine the jumper is setting the elm config settings, there is an option in there to enable HID settings.

 

Next concern is a wiring loom for the sensors front and back going to the control module, i highly doubt this would be on the car.

 

Next concern is the wiring coming from the headlamp for level signal to the control module or the other way round is prefer.

 

Next question, where does the HID control module connects with the rest of the GEM? from the headlamp multi function switch? i had a look on the schematics myself although i did not go into harsh details.

 

I will have a look at my car because i do remember seeing a extra connector of some sort under the headlamp previously 



#18 jarp

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Posted 06 October 2013 - 05:14 PM

Further research, this HID Control Module is called "Electronic Headlamp Control Unit" and it just could be, that unit from AFS lights will work with HID lights if properly reconfigured using ELMConfig... Anyways it is something like this:

 

PartImage_d90fd3b9-967c-4e8a-ab76-e5e076

 

According to the schematincs and judging from the picture there is one big connector for this unit. Now, where is it? When I yesterday replaced cabin air filter I saw few unused connectors on center console, but I am not sure if any of them was big enough for this one... It just could be that there are no wires insalled on non-HID Focus...



#19 mixmasterlooney

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Posted 06 October 2013 - 06:09 PM

Jari you keep getting better and better. i went out and took a good look at my car under the headlamps and i found some connectors, first up i have the 10 pin connector not a 7 pin connector. i also know that i'm not missing any wiring going to the headlight switch from doing the auto light mod.

 

Anyways i seems to have another connector with 2 wires coming from the headlight loom on both side of the car i think this is for the washers. it would be truly greatful if you could pop your headlight out and confirm this for me by looking at your washers Jari it would help greatly in identifying the correct looms.

 

Here it is on the left and on the right is the headlamp 10 pin connector

mt7j.jpg
 

 

I then found one connector on the left side of the car with 6 pins, this was not on the right hand side too. It may be the needed connector for the Electronic headlamp control unit. 

 

I can confirm this specific connector is also on the headlamp loom, not separate

 

crzt.jpg
 

 

Here is all three connectors, on the left is the 6 pin connector, top side is the 2 pin i suspect for washers and right side if the headlamp ten 10

 

jkw6.jpg
 

 

 

From the above image you can see a loom where the 6 pin connector comes from going downwards... this goes to the right hand side of the car for yet again the 2 and 10 pin connectors, it also leads upto the washer bottle where this had a large connector and with another connector going to the washer bottle.

 

I suspect that could be the washer bottle sensor but from what i know i don't have this sensor, anyways the connector has more looms at the washer bottle unused.

 

r4fi.jpg
 
 

 

Now if i could only find the location of where the sensor goes i can check to see if there is any connectors laying around that may fit the sensors

 

EDIT: The forum seems to be blocking my attempts to add direct image links without ads



#20 jarp

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Posted 06 October 2013 - 06:35 PM

Wow, lot's of pictures :) I will try check my washers tomorrow and see how they are connected. I checked out schematics of headlight washers and there is not that much components in it. Probably quite possible to retrofit also if one founds suitable wrecked car. Buying parts as new would be too expensive I think...

 

However I didn't read schematics throughout enough, it seems they give hint about locations of these connectors. HID Control Module is connected to harness 14401 together with heater blower motor, navigation, radio, cluster, diagnostigs, heating control etc. It most likely is located somewhere in console...

 

Front leveling sensor is connected to the same harness than right head lamp (14K733), should be just next to it after right front sensor (no idea what it is). Cannot locate rear leveling sensors...



#21 jarp

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Posted 06 October 2013 - 06:41 PM

Connectors should look like this (pictures attached)...

Attached Thumbnails

  • front_level_sensor.png
  • hid_module.png


#22 jarp

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Posted 06 October 2013 - 07:02 PM

Ah, those connectors are color coded for your convenience... Comparing them to your pictures, that 2 pin connector just next to you headlights, having black and green-yellow wires, it should be... C744 to headlamp washer :-) I'll try to verify that tomorrow if I have spare time.

That 6-pin connector, I do not know what it is. It seems not to be related to HID-lights, shape is wrong and colors also...
 



#23 mixmasterlooney

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Posted 06 October 2013 - 07:16 PM

Yes indeed they are C744 headlight washer. They match perfectly with the schematics. As you said the 6 pin connector does not however match up and have me lost too...

 

Not sure about the electronic headlamp control unit. i looked it up and it's listed with the same part number as automatic headlights. I have automatic lights and if this automatic light module is the same... i doubt it... then it's already there

 

Will check tomo if i can find the hid control module or the connectors for the sensor tomo



#24 mixmasterlooney

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Posted 06 October 2013 - 07:25 PM

The sensor looks something like this

 

$T2eC16F,!)MFIcBpVj,)BSJhNcLRwg~~60_12.J

 

This isn't the correct sensor but it looks almost exactly like this.

 

It connects like this on the front and rear of the suspension

 

2012-02-22_114622_6.jpg

 

2012-02-22_114556_7.jpg

 

The connector labeled as 1 hopefully is sitting there on my car when i have a look tomorrow ;- )

 

Judging by the photo i think i need to take the wheel off to get a good look, not sure if the wheel arch covers will be an issue though



#25 mixmasterlooney

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Posted 06 October 2013 - 08:01 PM

From what i can tell the sensor should be on the right hand side only, front and back where the wiring should be



#26 mixmasterlooney

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Posted 07 October 2013 - 04:43 PM

Jari i have some good news. I went on a loom hunt this afternoon and i was successful after much fiddling with the car because i wasn't sure what side the sensor would be on i took off the wheels and took off the wheel inner arch (very fiddly to put back on) and i found the loom for the sensor, as things stand my car is fully equip with all looms for HID lights.

 

 

The image you post of what the sensor plug looks like is correct i found that sensor and i also found another wiring for the water bottle motor to power the lights washers.

 

I will post up some pics later.

 

The loom is the same for adaptive lighting aswell so anyone with adaptive lights can also retrofit HID on their focus.

 

This mod is very much possible for me and i will be adding it to my list. on the subject of washers i have two choices, cut the hole for the washer jets or purchase a new ST bumper, this means i will lose my DRL's... 



#27 jarp

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Posted 07 October 2013 - 06:43 PM

Great stuff! But where is connector for HID control module and where is this "halogen jumper" located? If this "jumper" or whatever it is is not repositioned, according to schematics HID lights would still get leveling signal from manual knob and who knows if signal level is even compatible... Also HID module would be wired totally wrong without moving this jumper...

 

According to schematics these wires are not routed through GEM, so it cannot be software only thing...

 

Edit: And who would crash his HID-equipped car for me and sell HID related parts for me? Anyone? ;) Buying everything from scrap yards will be quite expensive, at least here in Finland...



#28 mixmasterlooney

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Posted 08 October 2013 - 09:46 PM

The wiring should be fine as HID wiring is the same as adaptive lighting and this still has a manual adjuster. The part number for the control module comes up at the same for automatic lighting. I think it is the same part but not sure.

 

A jumper is switch, usually a manual switch and there is no manual switch on the HID module. TBH i'm not bothered about this part because i think it's software controlled.

 

in elmconfig i have seen the option for HID lights if it's fitted and from what i know this only enables the washer and it should in  theory enable leveling signal from the sensor. the schematics isn't showing a switch on the HID module therefore i think it's software controlled.

 

As far as i know if the loom is there everything connected to the loom should be there too.

 

What gets me with this theory however is why does your car have washers enabled but no HID! it makes no sense, washers come with hid they are not separate options. Check your wiring maybe you already have the sensors hooked up like your washers.

 

One more possibility is that the headlight switch (Multifunction switch on schematics) is the jumper... since it does not have the controls for manual adjustment there might be something in the switch that switches the adjustment to automatic... just a theory.

 

Anyways i will be gathering parts slowly for this mod starting with the sensors and headlamp unit.

 

Jari take a look at your connector to your headlights, if it's 10 pin then it's likely you have the rest of the wiring if you have the chance to confirm it by looking under the wheel arch right hand side. Maybe it's left hand side for you being from finland

 

Wheel arch removed

 

ompf.jpg

 

 

Sensor connector 

 

x5gh.jpg

 

Colour coded

 

5s70.jpg

 

Here is the water bottle pump connector

 

fhif.jpg



#29 mixmasterlooney

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Posted 08 October 2013 - 09:48 PM

You can see where the loom comes from, in my previous post this is the same harness from the headlight connector

 

wkdb.jpg


#30 jarp

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Posted 09 October 2013 - 07:02 AM

Great pictures, thanks! Did you find rear sensor also? Ah yes, adaptive lighting is AFS then yes, the control module is the same. If you go to ELMConfig and Headlight Control Module and then configurration, you can see that you can configure module as HID or AFS (and yes there is HID configuration option for GEM also). But if you will retrofit HIDs to your car, won't you lose AFS? Or does AFS support both halogen and HID? I really do not know since I never took any look to AFS schematics or anything...

 

I really do not know why I have washers but not HID :-) Perhaps the car originally had HIDs or something but they broke and halogens were retrofitted b dealer instead as they are cheaper. Or something like that. I will check out the wires when I have some time, thank you for your great pictures!

 

Ps. According to schematics sensor connector should be on right hand side on both left hand drive and right hand drive cars. Yes I have left hand drive indeed.



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