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  #445  
Old 05-18-2016, 02:38 PM
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Re: 2014 Jeep OEM Projected headlight to OEM HID headlight

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Originally Posted by rt66er View Post
Thanks for the input. I'm still not there yet. Still getting hyper flash on mirror turn signals (and bulb out warnings). I'm a little unclear on your first diagram. Could you define what colors go to which circuits?
The two grounds are pretty evident, for the resistors and capacitor neg's. Green represents the positive signal with the diode and the yellow would be the negative. The extra grounds may make it messy, but its not much different than what you show.

Resistor ratings are different than what you show, but the turn signals are 25W or so, so how did you determine your resistor values? Your equivalent resistance is only 3 ohms.

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  #446  
Old 05-18-2016, 02:43 PM
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Re: 2014 Jeep OEM Projected headlight to OEM HID headlight

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Originally Posted by MarkPerry View Post
The two grounds are pretty evident, for the resistors and capacitor neg's. Green represents the positive signal with the diode and the yellow would be the negative. The extra grounds may make it messy, but its not much different than what you show.

Resistor ratings are different than what you show, but the turn signals are 25W or so, so how did you determine your resistor values? Your equivalent resistance is only 3 ohms.
I was basing the resistor value on a photo of a working harness. I could read the value engraved on resistor as 3 ohms. Also, I measured the resistance of the bulb and it's 3 ohms. Not saying this is necessarily right, but that's why I used 3 ohms.
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  #447  
Old 05-18-2016, 04:11 PM
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Re: 2014 Jeep OEM Projected headlight to OEM HID headlight

FYI, this turn signal circuit does not work; just tried it and I get an occasional flash from the turn signal and then a bulb out message.
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File Type: jpg JGC_OEM_HeadlightSchematic5.jpg (86.0 KB, 23 views)
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  #448  
Old 05-18-2016, 05:37 PM
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Re: 2014 Jeep OEM Projected headlight to OEM HID headlight

I may be misunderstanding a principle concept here, but although the turn and parking lights are the same on these lights they are actually controlled by different 'circuits'. Shouldn't each run back to the 16 pin molex connector include a load resistor then?

On that 7443 base, there was some controversy on how to connect that originally by Jeep Addicted, and eventually I think he used the existing piece from the halogen headlight. Ive attached what I tried illustrating earlier, hopefully its a little clearer with pictures.
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File Type: jpg parking light connector2.jpg (290.9 KB, 18 views)
File Type: jpg Harness connector 2.jpg (290.4 KB, 20 views)
File Type: jpg parking light connector3.jpg (357.8 KB, 16 views)
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  #449  
Old 05-18-2016, 06:26 PM
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Re: 2014 Jeep OEM Projected headlight to OEM HID headlight

As far as I can tell, the parking light circuit does not give a bulb out error, so no resistor is required. I put the turn signal circuit back and I guess I'll live with the mirrors hyper blinking for now...
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  #450  
Old 05-19-2016, 09:39 AM
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Re: 2014 Jeep OEM Projected headlight to OEM HID headlight

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Originally Posted by rt66er View Post
As far as I can tell, the parking light circuit does not give a bulb out error, so no resistor is required. I put the turn signal circuit back and I guess I'll live with the mirrors hyper blinking for now...
Are you saying the led turn light in the headlight does not hyperblink, only the side mirror light? Anyway you can post a quick video of your lights total operation?
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  #451  
Old 05-19-2016, 09:46 AM
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Re: 2014 Jeep OEM Projected headlight to OEM HID headlight

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Originally Posted by MarkPerry View Post
Are you saying the led turn light in the headlight does not hyperblink, only the side mirror light? Anyway you can post a quick video of your lights total operation?
Yes, only the mirrors blink fast, and the "tinka-tinka" is also double time. Front signals blink normal speed, as do back signals.

Could you elaborate on your calculation for 10 ohm resistors? I'm now questioning both the need for resistors in the parking signal circuit and/or more resistance in the turn signal circuit.
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  #452  
Old 05-19-2016, 03:36 PM
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Re: 2014 Jeep OEM Projected headlight to OEM HID headlight

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Originally Posted by rt66er View Post
Yes, only the mirrors blink fast, and the "tinka-tinka" is also double time. Front signals blink normal speed, as do back signals.

Could you elaborate on your calculation for 10 ohm resistors? I'm now questioning both the need for resistors in the parking signal circuit and/or more resistance in the turn signal circuit.
Ive looked at pretty much all the existing solutions for LED turn signals and almost all of them use 50W 6 Ohm resistors (not in parallel), and ive been told that Jeep, Chrysler, Dodge vehicles are the worst when figuring out 'dummy' loads. Too little is going to hyper-flash, and too much may blow a fuse or still hyper-flash. The right resistance is delicate and truly only can be found by trial and error.

What we do know is the existing 7444 bulb power is about 25W (13.5V x 1.85A), and the load resistor is roughly 25W (12V x 2.16A). While 6 ohm is the most popular by far, we need slightly more to trick our trucks. The 7443 bulb is at 13.5V/1.85A = 7.3 ohms, and while there are 8 ohm 50W resistors out there, which may work as well, the 10 ohm resistors have proved to work (thanks Jeep Addicted).

The parallel config of the load resistor is nothing more than another load for the computer to see, and trying to determine the sweet spot may be more than simple calculations. Im not sure how you measured 3 ohms, but the above is how I came to this solution. You may have measured the parking signal which has much less current. I did hear that only one load resistor per bulb is need though, so you may be able to eliminate the second load resistor in my circuit.

Let me know what you think, and if you try different resistances and it works let me know! Thanks!
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  #453  
Old 05-19-2016, 04:15 PM
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Re: 2014 Jeep OEM Projected headlight to OEM HID headlight

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Originally Posted by MarkPerry View Post
Ive looked at pretty much all the existing solutions for LED turn signals and almost all of them use 50W 6 Ohm resistors (not in parallel), and ive been told that Jeep, Chrysler, Dodge vehicles are the worst when figuring out 'dummy' loads. Too little is going to hyper-flash, and too much may blow a fuse or still hyper-flash. The right resistance is delicate and truly only can be found by trial and error.

What we do know is the existing 7444 bulb power is about 25W (13.5V x 1.85A), and the load resistor is roughly 25W (12V x 2.16A). While 6 ohm is the most popular by far, we need slightly more to trick our trucks. The 7443 bulb is at 13.5V/1.85A = 7.3 ohms, and while there are 8 ohm 50W resistors out there, which may work as well, the 10 ohm resistors have proved to work (thanks Jeep Addicted).

The parallel config of the load resistor is nothing more than another load for the computer to see, and trying to determine the sweet spot may be more than simple calculations. Im not sure how you measured 3 ohms, but the above is how I came to this solution. You may have measured the parking signal which has much less current. I did hear that only one load resistor per bulb is need though, so you may be able to eliminate the second load resistor in my circuit.

Let me know what you think, and if you try different resistances and it works let me know! Thanks!
Yeah, I've been trying to do a little calculating myself. My research shows the 7444 signal is rated at ~25 watts @ 13.5 volts and the parking is ~7 watts. Assuming the LED requires 4 watts (just an estimate) you would need to subtract that from the 25 to get 21 watts that needs to be simulated, which calculates to 8.7 ohms. I know through experience that 3 ohms and 6 ohms don't work. So maybe 10 ohms will work. It appears to me that a resistor is being used on the parking circuit on some of the harnesses I have seen. Simply going from the middle wire/pin through the resistor to ground. If the parking is 7 watts, and we don't have anything else to provide a load, then the resistor would calculate to 26.47 ohms. So I have ordered two 25w 25 ohm resistors and two 50w 10 ohm resistors. I guess I'll see if that's the answer next week.
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  #454  
Old 05-19-2016, 04:50 PM
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Re: 2014 Jeep OEM Projected headlight to OEM HID headlight

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Originally Posted by rt66er View Post
Yeah, I've been trying to do a little calculating myself. My research shows the 7444 signal is rated at ~25 watts @ 13.5 volts and the parking is ~7 watts. Assuming the LED requires 4 watts (just an estimate) you would need to subtract that from the 25 to get 21 watts that needs to be simulated, which calculates to 8.7 ohms. I know through experience that 3 ohms and 6 ohms don't work. So maybe 10 ohms will work. It appears to me that a resistor is being used on the parking circuit on some of the harnesses I have seen. Simply going from the middle wire/pin through the resistor to ground. If the parking is 7 watts, and we don't have anything else to provide a load, then the resistor would calculate to 26.47 ohms. So I have ordered two 25w 25 ohm resistors and two 50w 10 ohm resistors. I guess I'll see if that's the answer next week.
Awesome! Your right on the simulated loads as well, it raises my values even more. I have a good feeling about this, and I think its the last step to decoding the Da Vinci code!

Just curious, and I know you mentioned a full parts list would follow, but what is your cost ATM?
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  #455  
Old 05-19-2016, 05:15 PM
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Re: 2014 Jeep OEM Projected headlight to OEM HID headlight

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Originally Posted by MarkPerry View Post
Awesome! Your right on the simulated loads as well, it raises my values even more. I have a good feeling about this, and I think its the last step to decoding the Da Vinci code!

Just curious, and I know you mentioned a full parts list would follow, but what is your cost ATM?
Not counting the headlights and all the crap I mistakenly purchased but won't need, approximately $180. It could probably be done for not much more than half that if, unlike me, you know what you're doing.
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  #456  
Old 05-19-2016, 05:30 PM
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Re: 2014 Jeep OEM Projected headlight to OEM HID headlight

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Not counting the headlights and all the crap I mistakenly purchased but won't need, approximately $180. It could probably be done for not much more than half that if, unlike me, you know what you're doing.
Don't sell yourself short, after all your the one doing the hard work! Its one thing to see it on paper, another to build it. Im relying on you for a lot of the construction and minor details that I know id either forget or not think about. Ive always gotten in trouble (and over my head) when I think theory translates to real life lol.

That price is pretty reasonable, but wasn't the morimoto harness close to that alone? Ill be interested to see the complete parts list when your ready. If you had it already id love to see what you have to date, even if you want to just send me a PM. Appreciate it!
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