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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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Old 06-20-2014, 07:56 AM
Augster Augster is offline
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REQUEST: E90 LCI Xenon AHL Headlight Connector to FRM Connector Wiring Diagrams

Need the LCI wiring diagrams related to all the wiring (Xenon lights, AHL, signal light, and 3-LED light) between the front left and right Xenon AHL headlights, connector X13420 and X13421 respectively, to the FRM module, connectors X14260 and X14261.

Trying to get the 3-LED light group working on my pre-LCI to LCI conversion. Haven't found any definitive DIY's out there. There have been posts stating that pin 7 of headlight connectors go to pins 50 (left) and 8 (right) of X14260, but I completely disagree as those are used for the turn signal/parking lights but the 3-LED lights work independently of the LCI signal/parking lights, which are working just fine on my conversion.
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Old 06-20-2014, 01:14 PM
fdriller9 fdriller9 is offline
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http://www.bmw-planet.com/diagrams/release/en/
http://www.bmwgm5.com/
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Old 06-20-2014, 01:22 PM
Augster Augster is offline
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Although I appreciate the links (which I'm very familiar with), those are for the pre-LCI models to MY2008; it does not cover the LCI MY2009+ models, which I believe is because BMW rolled the wiring diagrams into the ISTA suite
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Old 06-20-2014, 01:52 PM
fdriller9 fdriller9 is offline
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It's the exact same pinout.

That's why it's possible to do an FRM3 retrofit on an early model E9x originally equipped with a FRM1.

Also ISTA is outdated and no longer in use. Dealerships use ISIS now.
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Old 06-20-2014, 01:54 PM
fdriller9 fdriller9 is offline
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I would just tap power off the AE circuit, inside the housing. Much easier than running a line from the headlights into the cabin, where the FRM is.
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Old 06-20-2014, 03:20 PM
Augster Augster is offline
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Quote:
Originally Posted by fdriller9 View Post
It's the exact same pinout.

That's why it's possible to do an FRM3 retrofit on an early model E9x originally equipped with a FRM1.
The positions of functions may not change to make the FRM2/3 backwards compatible, but that doesn't mean unused pins have not been utilized in the FRM2/3.

As can be seen in this video showing the full spectrum of lighting functions on an OEM LCI Xenon AHL headlight, the 3-LED light group is powered independently of all lights (it may appear they are powered the same as the light rings, however, at time 0:49, you will see the 3-LED light group turn off while the light rings remain powered):



This light group is also enabled/disabled via the FRM2 (only) setting "SL_V_PO_RL_FKT", which is reported to be ignored in the FRM3 module (causing consternation on FRM3 owners wanting to code the "Corner LED delete").

Pin 7 at the LCI headlight connectors is the power source to these light groups (they are unused on pre-LCI headlight connectors); but no one has provided definitive pin location(s) on the FRM module itself. Some claim these go to pins 50 (left) and 8 (right) at the FRM, but these are for the side lights/parking lights, connected to pin 1 at the headlight connectors, and are enabled/disabled separately via the "SIDEMARKER_US_NFRM" setting.

Quote:
Originally Posted by fdriller9 View Post
Also ISTA is outdated and no longer in use. Dealerships use ISIS now.
I only brought up ISTA as the introduction of the demise of BMW's stand-alone WDS, which was used as the basis for interactive online wiring diagrams such as through bmw-planet.com; I'm well aware of the current software suite that BMW's uses at its dealerships today.

Quote:
Originally Posted by fdriller9 View Post
I would just tap power off the AE circuit, inside the housing. Much easier than running a line from the headlights into the cabin, where the FRM is.
It's not about being "easier" but sating my fastidious OCD appetite; I absolutely don't want them slaved to the light rings though. And having the freedom to code them whenever I want them enabled or disabled gives me all the flexibility that BMW intended. I will be pulling the entire dash pad and kick panels out as part of my iDrive/NBT navigation retrofit, so that's when I plan to wire up the FRM to power the 3-LED light groups separately; hence, my request for specifically LCI wiring diagrams (not just pin-outs) so I can determine the modifications necessary.

Since pin 8 of the headlight connectors are not used in OEM Adaptive Head-Light systems, I can re-pin to pin 7 at the headlights, and whichever pin(s) at the FRM. This will greatly simplify the process.
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Last edited by Augster; 06-20-2014 at 03:44 PM.
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