Traction Control - ESC/ASR & HDA switch retrofit

[Robert]

Any tips on removing the cover off the plug to access the pins? I've got the plug off the abs module but I don't want to break the cover taking it off.

Just lift the back cover of the plug where all wiring is entering and then release pink catches on both sides.

 

[ei-aprilia]

Just lift the back cover of the plug where all wiring is entering and then release pink catches on both sides.

Hi Robert thanks for the speedy reply! The cover wasn't budging I even tryed prying it off with a screwdriver but I didn't want to break it. There's definitely no clips or catches? I'll give it another go tomorrow , I had to get the van running again so battery box back in now.
Thanks again

 

[Deaky]

The cover is just clipped on. Look down the sides you’ll see where the clips are

 

[markob]

Ok, before I return the forum VCDS cable I need to do this, a quick question, is it ok to do the coding and do the wiring in a couple of weeks?

In other words having Traction control and hill decent buttons coded to be there without them being there - should not cause any problems?

 

[Robert]

Ok, before I return the forum VCDS cable I need to do this, a quick question, is it ok to do the coding and do the wiring in a couple of weeks?

In other words having Traction control and hill decent buttons coded to be there without them being there - should not cause any problems?

Yes, that is fine. Do coding first and then wiring later. No problem

 

[markob]

Thanks @Robert - back outside I go with the laptop

 

[markob]

OK, so just so I'm clear (slight panic before coding the ABS controller...)

Traction Control (coding) = BYTE-15 = D3 > 93

Hill Decent (coding) = BYTE-6 = 84 > ?

Happy to work in HEX on this...

 

[dnoermann]

You need to change Byte 6 and byte 14 together for Hill Decent
See here
Want ESP/TC Button in my 2017 Caddy, abs mk100 coding?

Byte 6 ==> 0x86
Byte 14 ==> 0x61

 

[markob]

OK, so Traction Control button :

 

[markob]

Hill Decent Button :

 

[markob]

- so good to go with those hex adjustments?

 

[mmi]

- so good to go with those hex adjustments?

Yes, those are what I got from factory with the buttons

 

[4ndy]

Hi all
Anyone in or around Yorkshire that can install, wire and code that you can recommend and how much do you reckon it'll cost all in?
Cheers

 

[Robert]

Hi all
Anyone in or around Yorkshire that can install, wire and code that you can recommend and how much do you reckon it'll cost all in?
Cheers

That is all I can help with ---> Traction Control

 

[markob]

Mmmm, that didn't go too well... Managed to activate the traction control coding, that all went in ok

When I tried to activate the HDA coding (BYTE-6 or BYTE-14) I get an error message from VCDS and a warning beep form the dashboard followed
by all the traction control warning lamps flashing!

Is it possible its not supported on my Shuttle?

 

[dnoermann]

You need to change Byte 6 and byte 14 together for Hill Decent
See here
Want ESP/TC Button in my 2017 Caddy, abs mk100 coding?

Byte 6 ==> 0x86
Byte 14 ==> 0x61

Your screenshot is not showing the old/new coding

Did you change Bte 6 and 14 together ?
Meaning at the same time ?
The ABS is only accepting this when it is done together

 

[markob]

Aha no....

I'll go and try again

 

[dnoermann]

Ah, and there could be a second issue.
Which Engine do you have ?
Only the new EU6 Engine supports the HDA ...
If you have a EU5 Engine, than the ECU Firmware needs to be patched, to support this feature.

 

[markob]

Engine is an EU6 (2017 Shuttle)

Good news, changing both BYTE-6 and BYTE-14 together worked - New current coding :

 

[markob]

Thanks again to the work done by others to make this work - cheers @dnoermann and @Robert !!