KP Technologies MX20 Controller for Independent Fog Lights for 09 - 13 FXs

Rip and Wayne, thanks for the kind words.

---------- Post added at 05:58 PM ---------- Previous post was at 05:52 PM ----------

Yeah, there is no guarantee on the wire color used on relay socket. You should check the terminal number at the bottom of the relay to be sure. On my install, the relay red wire is terminal 86 , relay blue wire is terminal 87A, relay black is terminal 30, and relay white wire is terminal 85.
 
Yes, there is a small problem with this DIY.

You state:
"Connect KP Yellow wire to White wire (pin 146 on M123) on connector."
The White Pin 146 wire is the "Combination Switch Output 4".

You state:
"Connect KP Blue wire to Sky Blue wire (pin 123 on M123) on connector."
The Sky Blue Pin 123 wire is the "IGN Feedback".

If you look at the KPtechnologies installation manual you'll see that the yellow wire is the switch ignition input. This wire provides power to the onboard power supply that then powers the microcontroller and other onboard electronics. The Blue wire is the "BCM Output" designed to be connected to the output signal of the BCM matrix control circuit.

You have these wires reversed, and as such, this module will NOT work.

This DIY instructs people to connect the power feed to a data signal - this can lead to damage to the BCM. Since our circuit board is a low power device (6-7mA) just connecting it to the data line probably won't damage anything, but if he would have connected the (+) side of the relay coil to the KPtech yellow wire it most likely would have fried the BCM.

I would be very curious to know if this is how you left your installation. It simply isn't possible for it to work correctly connected as shown.


As far as the issue of the lights staying on at all times you have most likely damaged the output transistor that drives the orange wire when you connected it directly to 12vdc. The output is current limited, but not to the point to survive a direct short for an extended amount of time. Shoot me another Email and we'll set up an RMA for a free factory evaluation and repair.

At KPtechnologies we stress to ALWAYS verify EVERY connection with a volt meter (except for the data lines, they should ONLY be tested, as per the installation instructions, with an oscilloscope to prevent damage). Blindly following service manuals, tech sheets, or even DIY can cause major issues if there are mistakes or changes.

With the exception of reversing the two wires this is one of the best DIYs I have seen. I really like how you took the time to screen capture all the functions of the BCM - it makes the "why it works" a little easier to figure out.

As far as this being "more difficult" then an independent switch you really only have two extra wires to install this module - the BCM data wires. You'll still need to install a relay as shown here, and you'll have to install a switch with two wires. The only real issue with this module is that most people (and shops for that matter) don't have an oscilloscope to verify the data wires. This is why we added the status LED a few years back, to make that step easier to verify!

Ha, look at that, we are actual engineers! Not only that, we stand behind all of our products with a lifetime warranty even on products damaged by improper installation! :D
 
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All I got to say is this DIY works whether it's wrong or not. The Installation was done on my car and it has been almost 6 months with no issues so Andy's DIY works somehow and someway.
 
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I want to thank La_fx35 and Kpierson for all your wonderful help!! It took awhile to get everything corrected but I have just finally got everything to work as it should!!

The BCM, the 2 wires just needed to be switched and that's it
The relay, I checked the terminals and the wire colors are exactly the same. I don't know why when I connected it before wasn't working but it is working 100% as it should!

Only thing is when i turn on the headlights (not auto), I won't be able to turn off fog light. But on other modes, it's working fine.

THANK YOU!!!!!!!!!!!
 
Awesome u finally got it to work bro. Btw akachi did u get my pm?
 
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Rip, PM'd you back.

Also were you able to turn off fog when you have your headlights turned on (not auto)
 
Yes, there is a small problem with this DIY.

You state:
"Connect KP Yellow wire to White wire (pin 146 on M123) on connector."
The White Pin 146 wire is the "Combination Switch Output 4".

You state:
"Connect KP Blue wire to Sky Blue wire (pin 123 on M123) on connector."
The Sky Blue Pin 123 wire is the "IGN Feedback".

@KPierson, thanks for pointing this out. BTW, the wire color for Pin 146 should be Sky Blue and pin 123 should White. :wink:

Previously (as of 09/10/14), I updated these connections (instructions and pictures), but I forgot to update the pin number corresponding to the wire color in the instructions accordingly. These connections are now corrected in the DIY step #5 above.
 
Rip, PM'd you back.

Also were you able to turn off fog when you have your headlights turned on (not auto)

Do the fog lights turn on when you turn the Left Turn Signal on (fog light switch off, head lamp switch off)?

---------- Post added at 10:19 AM ---------- Previous post was at 10:13 AM ----------

With all due respect it is not possible for this module to work with those two wires reversed. There is a slim possibility that it "somewhat" works in the fact that the foglights will turn on and off with the fog light switch but also under other conditions as well as one of the BCM comm wire is connected directly to 12vdc which will prevent the module from ever syncing to the signal. More then likely the person installing the module on your vehicle caught this mistake and hooked it up correctly.

All I got to say is this DIY works whether it's wrong or not. The Installation was done on my car and it has been almost 6 months with no issues so Andy's DIY works somehow and someway.
 
Another headache.. I had put everything back so I was not able to check if the light comes on. I tested it again this morning and it works however I tested to see if the fog goes on when I turn the left signal and it does =(
So I just took apart the panel to see if the light would come on but once I took it apart, the module no longer works. LED would not come on or anything.
 
Do the fog lights turn on when you turn the Left Turn Signal on (fog light switch off, head lamp switch off)?

---------- Post added at 10:19 AM ---------- Previous post was at 10:13 AM ----------

With all due respect it is not possible for this module to work with those two wires reversed. There is a slim possibility that it "somewhat" works in the fact that the foglights will turn on and off with the fog light switch but also under other conditions as well as one of the BCM comm wire is connected directly to 12vdc which will prevent the module from ever syncing to the signal. More then likely the person installing the module on your vehicle caught this mistake and hooked it up correctly.

Andy must have caught the mistake or something and switched the 2 wires. It doesn't make sense since your saying it's wrong but it works perfectly as it should with no issues at all.
 
Yes, I caught the mistake during your install and corrected, but when I put the DIY, I use the wrong note that I took during the install. The mistake wasn't uncovered until akachi using this DIY.

The DIY is now corrected.
 
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Awesome thx man i appreciate it was planning on going with matching hids but not wanna deal eith the housing melting
 
Awesome thx man i appreciate it was planning on going with matching hids but not wanna deal eith the housing melting

The housing won't melt if you use 35w. It's the 55w that melts it.
 
Oh I didn't know thx for the info... I'll def. keep that in mind... Let me ask you another question lol sorry don't wanna be annoying.... But anyways I purchased some eyelids for my car went through a horrible experience , never got them after like 2 month of waiting (Russia international shipping) long story short filed a dispute and got my money back... But stayed with hopes of still getting them.... Can you point me to the right direction...somewhere I can purchase them and have no doubt I'll receive them
 
The cheapest place is the guy on eBay but I had bad experiences with him so I won't use him ever again. They all come from Russia so there is no guarantees. No one in the USA sells them.
 
Lmfao I think it's the same guy...has them listed as cilia? For like $109...yea I got sold on them too super cheap compare to the other prices, even when ahead and bought the trunk lid (spoiler) he has too but like I said horrible experience I'm still in the whole process of the dispute...$300 for a
product I never received thank god for paypal
 
To those that have this module installed on '09-'13 FXs do your fog lights turn on under the following conditions:

1. Vehicle running
2. Fog Light switch in OFF position
3. Left turn signal on

Looking at the service manual the timing of the protocol has changed drastically from the platform that his module was designed for. On the original system the fog light signal was active for 10ms out of every 50ms. Now, according to the manual anyway, the signal is present for 50us every 50ms.

Due to signal processing times the KPtechnologies module will not operate as designed with a 50us signal.

The service manual also shows that this is a ground based system instead of 12vdc based. The module was originally designed to work with 12vdc based systems, but can work with ground based system with a minor modification.
 
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