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Glenn65

·Premium Member
2016 Autobiography
Joined Jun 26, 2017
·
3,334 PostsDiscussion starter · #1 · Aug 21, 2023
I have decided to give this a go, as since I got the car I was amazed that with every other option fitted, the only one that seemed to be missing was the Adaptive Cruise Control. I have to at this point say a massive thanks to John Finnon for the time he put aside to assist with the set up in SDD. Without it I’d have got nowhere fast! Another big thanks to Seg (Fidelthecat) for the use of his garage for this (and other things).

So I did a bit of searching on the Google machine and only found 2 or 3 write ups by XDave on the various forums, all saying pretty much the same thing.

Adaptive Cruise Control in XJ 2016- How do I know if the...

Reading this, with mine being a 2016 it all seemed pretty straight forward so the story began. I have broke this down in stages to hopefully make it easier for anyone that wants to try this. (The only word of warning would be, that as this is a deviation from the factory build. If you ever have to put the car in to get work done, they may wipe this out if they do anything with the CCF files.)

So I started to source the parts as listed below:

Parts:
Grille - C2D43030
Grille badge - C2D35915
Module - FPLA-9G768-AC
Bracket - C2D49967
Screw - C2D5586
Steering wheel switch C2D47180

Radar Module:

Drop the front bumper, I only removed it from the top and rested it on a piece of carpet. Bumper removal is listed elsewhere so I never did a write up on this.

See TheBoys excellent write up here: Front Bumper (Cover) Removal

Take off the grille, there are quite a few T15 (I think) holding this in place. Once off you have easy access to the bumper bar. I removed the horn bracket for easy access, behind this there should be a wire connector with a blanking plug in it. There will also be 2 holes on top of the bumper bar. These will need to be thread tapped with an M6 tap. The workshop parts only show 1 screw as the other side of the bracket has a metal tab, but I fitted 2 to make sure it sat steady.






Dig out the wire and connect to the radar module and refit the horn bracket and also mount the module bracket.
Put the new grille and badge in place and then remount the bumper.


Airbag Removal:

Make sure the steering wheel is at 90 degrees and then put to its lowest position.





Disconnect the battery. Some say 2 minutes, some say 20 minutes. I left it for 45 minutes to allow the capacitor to discharge in the airbag. (I used this time to remove front bumper.)

Remove the lower and upper steering column shroud using T20 hex keys. 2 for the lower and 3 for the upper sections.

On the rear of the wheel behind the now top and bottom spokes, there are 2 holes, a trangular and rectangular one. With a small inspection mirror and a 4-6mm flat head screwdriver that you don't mind bending to create a 90 degree end about 30mm long. In the rectangular hole, you get the blade of the screwdriver under the metal spring clip then twist until the spring is over the top of the tab it sits on. Pull the airbag toward you at that side.

Repeat this with the opposite spring clip.

Switch removal:

With the airbag out, the switch is held in place with a T20 hex in the wheel and also behind through the flappy paddle.
Remove these then carefully unplug the paddle wire, then 2 other wire connectors. White one at the top of the switch and the lower black connector you can see easier on the steering wheel. Replace with the new ACC switch pack.

To replace the airbag, put back in place and carefully push it until you hear it click back into place.

Programming:

You need SDD and access to engineering mode. To do this you need to generate a passkey using the SEED generated by the SDD.

Passkey:

I used software downloaded from Jlr Access Code - vehcom.com to generate a passcode. You need this to enter engineering mode.
Enter VIN and SEED key from SDD to generate the passcode.

This is time dependent as the SEED key changes. Not sure of time limit. I’d only do this when ready to go into SDD.

SDD:

Log in with Passcode by clicking the key on the left.
Enter VIN and now acquired passkey.

Go into:

Diagnosis first then Service functions and scroll down to:
Car Configuration Management modification

Parameters I changed:

Working from top to bottom when your in CCM:

Speed control - No speed control fitted to Adaptive speed control is fitted
Speed control - No speed control fitted to Adaptive speed control is fitted
Adaptive speed control ECU - Undefined to UK/rest of the world
Adaptive speed control ECU - Standard blockage level -40db left as is
Adaptive speed control ECU - Disabled to Enabled
Speed control - Standard speed control to Adaptive speed control with queue assist
Adaptive cruise control indication in instrument cluster - Disabled to Enabled

Calibration:

This is done by taking car for a drive with SDD connected.

(I tried this with my Autel MK808 but mine kept looping around clearing codes and then stopped the cruise working I think however I may have hit the wrong button while running through this, so I’d say SDD would be the best method. After taking the car for a run, after about 10 - 15 minutes this cleared itself and everything started working again SO probably user error.)

 

This should be added to the Stickies> Well done and thank you!