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(How-to) Enable Lane Centering Assist

32337 Views 108 Replies 30 Participants Last post by  Thatguydavie, 
360alaska
Update: 5/10/21

Clarifications based on feedback:
  • To be very clear, your forscan adapter must support MSCAN.
  • You must clear your DTCs after programming all modules.
  • Added separate values for Hybrid Vehicles.

Lane centering assist is truly amazing technology, when I got my titanium escape I thought it was the coolest feature. It makes highway driving truly effortless when combined with ACC. In order to complete this mod you must already have ACC with stop/go. For a 2020 escape, the IPMA(camera) is exactly the same whether you’ve got a SE or a titanium. (LJ6T-19H406-CD) It's just a matter of turning it on, the only part that is needed it the lane center buttons and even with that, you may be able to activate lane center without the lane center buttons. Feel free to test it by enabling it in forscan without changing the SCCM settings.

Here is a basic idea of how to access the steering wheel buttons by removing the airbag:


1. It is recommend to disconnect the 12v battery and wait 20 minutes ensure the supply to the airbags is drained.
2. Remove the upper steering column shroud by prying with a trim tool between the upper and lower column shroud.
3. With the steering wheel in the 90 degree position insert a flat blade screwdriver and pry up to release one side of the airbag. Rotate the wheel to the left to 270 degrees and do the same for the other side.

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4. Disconnect the horn connector
5. Disconnect the two airbag connectors by prying up on the orange clips and then remove the connectors and set the airbag aside.
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6. Disconnect the electrical connectors to the left and right button packs and gently pry the trim surround out with a trim tool.
7. Swap the button pack by removing and replacing two torx screws.
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Parts needed:
LB5Z9C888H (Lane center buttons)

Forscan Asbuilt mods:

IPMA:

706-01-02 XXX6-XXXX-XX (Enable Traffic Jam Assist)
706-02-07 XXXX-XF8X-XX (Enable Lane Center Assist)
IPC
720-10-01 XDXX-XXXX-XX (Enable Lane Center Assist)

SCCM
724-02-01 x390-xxxx-xx (Lane Center left buttons) (Only if and When you change your left button on the steering wheel.)

PCSM (enable Lane center and traffic jam assist)
730-02-02 XXXX-FFFF-XX


Here's what it looks like on the SE Instrument Cluster:
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gimlithepirate
360alaska said:
Thanks for the information, I guess the only way is to install the button?
Click to expand...
Question, when you install the button, does it show the enable/disable option in the menu?

The flags you sent me only tell the system to populate those menus, it may be populating the menu based off the button config. If you update the software to support the extra button, it may update the menus, and the lane centering button just is never pressed.

Just depends on what the criteria for populating the menus in both the gauge cluster and sync system are.
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360alaska
Nope, the button simply toggles it on and off and the green steering wheel over the lane keeping view appears and disappears depending on whether you have it enabled or not. If you change the button config without the button installed you will get a DTC.
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gimlithepirate
360alaska said:
Nope, the button simply toggles it on and off and the green steering wheel over the lane keeping view appears and disappears depending on whether you have it enabled or not. If you change the button config without the button installed you will get a DTC.
Click to expand...
Huh. That makes me think there is some third config somewhere the menus are populating from. No idea where....
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360alaska
You can try all "F"s

720-10-01 FFFF FFFF FF

and see what happens.
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T
360alaska said:
Just to be more clear on this, my SE didn't even have adaptive cruise or NAV, so some of those values in a car with ACC/NAV are already there.
Click to expand...
I'm looking to add lane centering to my 2020 Se Sport that already has adaptive cruise. Should I just edit the values that I find are different? Seems like I'm not going to do the VIN one.
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Gryffindor101
three_x_z said:
I'm looking to add lane centering to my 2020 Se Sport that already has adaptive cruise. Should I just edit the values that I find are different? Seems like I'm not going to do the VIN one.
Click to expand...
I merged your thread with the existing thread on this topic. Have a look at the instructions the OP provided above.
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360alaska
three_x_z said:
I'm looking to add lane centering to my 2020 Se Sport that already has adaptive cruise. Should I just edit the values that I find are different? Seems like I'm not going to do the VIN one.
Click to expand...
Changing the values to the ones listed on the first post will enable lane centering.
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M
Just thought I would post a follow up. I decided to install the left side steering wheel buttons. Be extremely careful when removing the button trim piece from the wheel. It is fastened to the trim piece below it with 4 small plastic welds so everything has to come out together. Start prying from the top and work your way to the bottom. I didn’t see these welds and broke them. Everything still goes back together ok if you get a clean break however. If you dont get a clean break you may be in trouble. The trim doesn’t appear to be available from Ford. Everything I looked at indicated you would have to purchase the entire steering wheel.

Aside from that the buttons are working great. I did have an issue with u1a00 (missing message) DTC appearing in the APIM after reprogramming the SCCM for the buttons. It wouldn’t clear until I reloaded my modified as built data into the APIM which was weird. It didn’t come back after a 15 minute drive.Hopefully it doesn’t come back.

I wonder what the Ford dealer will say if I ever need to take it in for work that requires replacement of a module involved with this mod. There is no way I am taking that steering wheel back apart to make it stock again for service!



Again thank you for all the legwork on this!

UPDATE: I did some research on the APIM code I was getting. It must have been a coincidence that I got it when I was reprogramming the SCCM. It signifies an issue with the APIM passing SiriusXM data according to my research. I did update to the latest sync version a few days before I installed the buttons so I bet there is a bug in the new sync firmware that causes it. I scanned again last night and it was back. Whatever the case everything is functioning normally so I’m going to disregard it.
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Rolias81
I wish I had the patience to do this...
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360alaska
Rolias81 said:
I wish I had the patience to do this...
Click to expand...
(n)
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Rolias81
360alaska said:
(n)
Click to expand...
:-(
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M
It really doesn’t take much patience if you’re not going to disassemble the steering wheel. Don’t fat finger the keyboard, make original as built backups, double check your changes and you will be fine.
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C
Hats off 360Alaska! Thank you for the effort and time to figure this out.

I have used Forscan before and have the adapter for MSCAN but have never done the asbuilt programming changes with it. My switch is different, I wonder if this could make a difference in the programming? Likely?

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360alaska
Yes, as mentioned, simply do not program the sccm part of it, it will work with only the adaptive cruise buttons.
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fbov
Rolias81 said:
I wish I had the patience to do this...
Click to expand...
Matth825 said:
It really doesn’t take much patience if you’re not going to disassemble the steering wheel. ...
Click to expand...
360alaska said:
...it will work with only the adaptive cruise buttons (which requires disassembly of the steering wheel - ed.).
Click to expand...
Conflicting advice is a pretty good sign of a complex procedure... I'd be with @Rolias81, if not equipped.
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360alaska
Where did I type that? The part on the end, I looked and couldn’t not find it. As mentioned earlier in the thread, it is not necessary to change the buttons, without the lca buttons, lca will be active whenever acc is active.
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gimlithepirate
Just did a long trip with the lane centering enabled, but no buttons. This is a great mod if you've already got the Adaptive Cruise Control.
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360alaska
I’m not saying you should, but suppose for a moment you’re on a relatively straight or mildly bending highway with good lines. If you had a small weight on the steering wheel it will actually drive itself. Just stay in the left or middle lane otherwise the car may try to take an off ramp if the lines aren’t painted correctly.
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gimlithepirate
360alaska said:
I’m not saying you should, but suppose for a moment you’re on a relatively straight or mildly bending highway with good lines. If you had a small weight on the steering wheel it will actually drive itself. Just stay in the left or middle lane otherwise the car may try to take an off ramp if the lines aren’t painted correctly.
Click to expand...
What I would typically do is just hold the base of the wheel with my arms in a relaxed position. It's not worth completely letting go of the wheel, but it sure does reduce the work load on the driver.

More impressively, in serious heavy downpour (I was driving 25mph on the interstate with hazards on because I could only see the yellow line on the road) the cruise system could see the car in front of me, as well as both lane markers. I drove by hand, but this is a hug improvement over subaru where a light mist disables all aids.
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360alaska
LCA seems fairly hit and miss during downpours out here, probably because the lane markings are fairly poor to begin with. If you're curious have a look here: Lane centering - Wikipedia to get an idea of the algorithm involved. Most cars nowadays with the tech (excluding Telsa) use Mobileye's self driving chip. Something I've noticed is that the car does seem to learn, meaning, if it makes a mistake at a certain point and I correct it, after a time or two it won't make the same mistake. Kinda neat.
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