Traction Control - ESC/ASR & HDA switch retrofit

[Mehkor]

First of all:
You need to be able to Read and Write the Firmware of the EDC17CP20
For this there are tools on the marked.

I am using VCP with EDC17 Boot plugin, for this the ECU needs to be open.

Second: you need to know what Byte to change, to enable the CAN Bus Message: Motor_Bremse ENGBRK
This is different in every Firmware Version, but i can help to find it

What tools do i need exactly ? I have vcds, vcp, odis, ktag, kess( only can do virtual reading i think) and can barrow avdi , arbites vs.
will i lose my tune on firmware write ?
Is there any possibility of that can message already enabled by chance
Thank you

 

[Mehkor]

 

[dnoermann]

( only can do virtual reading i think) and can barrow avdi , arbites vs.
will i lose my tune on firmware write ?

With Virtual Read you will loose your tune

 

[Mehkor]

With Virtual Read you will loose your tune

Today i made the harness and coding and when i give 12v to pin8 hill decent activated
Does it mean am i good to go ?

 

[Mehkor]

I think all working ¯\_(ツ)_/¯
Hda test

 

[0x001]

Wiring is very simple. All you need to do is to connect PIN 4 and PIN 6 from ABS unit to TCS switch contacts. And then steal illumination from one of neighbouring switches.

What are the cables (colours) that I need to steel illumination? gray/blue and brown?
Also, can you please posting a pic of the cabling you did to steal the feed from another button? I want to make sure I'll do it in safe way

Thanks!

 

[Robert]

I am away and I don't remember cable colours. Just use volt meter or test lamp and keep on switching your side light ON/OFF and you will figure it out very quickly.

 

[Deaky]

What are the cables (colours) that I need to steel illumination? gray/blue and brown?
Also, can you please posting a pic of the cabling you did to steal the feed from another button? I want to make sure I'll do it in safe way

Thanks!

Yes, Grey/Blue trace is illumination +ve. Brown is -ve

 

[drinfinity]

Looking into HDC addition for my T6.1 4Motion with diff lock and trailer prep.

This is the coding for module 03 Brakes
31 55 67 52 48 48 EE 85 8C 57 E6 AC 12 69 77 26 39 23 24 B8

Whilst the codes I have in bytes 6 and 14 don’t match earlier discussions, I do have Byte 6 Bit 1 and Byte 14 Bit 6 both = 1.

This suggests to me HDC is already coded, and I just need to get a switch and connect as shown upthread?

 

[strong-max]

hi

i'm trying to retrofit HDA on my t5.2 with
ABS unit 7E0907379Q
307EC098656386820C7C037FA68361A6780000

short circuit abs pins /6 (black) and /8 (yellow) and have no indication on abs pin /14 (grey wire)

i flashed my dashboard, it has no HDC icon at all
sniffing CAN codes to reverse it to wire by canny is not a right way i suppose
any success at patching abs firmware to get led indication back activated? @dnoermann

 

[Robert]

Have a read below.

Probably, but there is no way to get that indicator in the Switch to be illuminated via that Grey Cable from ABS.
In 2019 Scematic VW removed the grey cable.

I did the Test with a 2013 T5.2 Premium Cluster.

Works

And you realy dont need the Visual sign in the Cluster.

You will feel when the HBA is breaking ...

 

[strong-max]

yes i've read whole thread thx
you have can codes received from abs when activated, deactivated? i will try to emulate grey wire with Canny to get this indication if no other way
i like everything indicated

 

[dnoermann]

you have can codes received from abs when activated, deactivated?

I don't have it, but for shure it can be Asked via Diagnose Can Frames at ABS.
There is a Meassure Value which can be Monitored via VCDS VCP ODIS etc.
Simply sniff the Communication and replicate it.
I think the MK100 ABS in T6 speeks UDS, like the Cluster, so you can use most if my code from car-tools/PQX5_Kombi.py at master · dnoermann/car-tools
and use UDS_ReadDataByIdentifier Function to get the Value.
And if MK100 only speeks the Older TP.20 Protocols than the code from Hacking a VW Golf Power Steering ECU - Part 1 will help, he did a full TP2.0 implementation

 

[@KC1]

I’ve read through the whole thread and may have missed it but has anyone got the part number for the ABS module connector terminal crimps?
Would like to add hill descent.

 

[n10n]

I’ve read through the whole thread and may have missed it but has anyone got the part number for the ABS module connector terminal crimps?
Would like to add hill descent.

From post Traction Control - ESC/ASR & HDA switch retrofit

000979025E - repair wire
000979025EC - just the crimps but with seals

 

[@KC1]

From post Traction Control - ESC/ASR & HDA switch retrofit

000979025E - repair wire
000979025EC - just the crimps but with seals

@n10n - appreciate it, thanks.

 

[strong-max]

hi

i'm trying to retrofit HDA on my t5.2 with
ABS unit 7E0907379Q
307EC098656386820C7C037FA68361A6780000

short circuit abs pins /6 (black) and /8 (yellow) and have no indication on abs pin /14 (grey wire)

i flashed my dashboard, it has no HDC icon at all
sniffing CAN codes to reverse it to wire by canny is not a right way i suppose
any success at patching abs firmware to get led indication back activated? @dnoermann

btw, we've got Success here - a light to the button comes )
when Button pressed then ABS unit opens GND (ground) at pin /14 (but not +12V as expected)
and +12V for Button indication we take from KL15 (ignition ON)
Everything works. This is resprayed and laser cutted 6pin PDC button on the photo.
This might be useful for those of you who have no HDC lamp on Instrument cluster (like me hehe)

 

[drinfinity]

Ok, so here we go again. I know now that for HDA I need to hit pin 9 on the ABS for my T6.1, not pin 8. Which makes me question if the coding is the same or different to the T6. Any suggestions?

T6.1 4Motion with diff lock, traction control, and trailer prep.

This is the coding for module 03 Brakes
31 55 67 52 48 48 EE 85 8C 57 E6 AC 12 69 77 26 39 23 24 B8

Whilst the codes I have in bytes 6 and 14 don’t match earlier discussions, I do have Byte 6 Bit 1 and Byte 14 Bit 6 both = 1.

 

[mmi]

Which makes me question if the coding is the same or different to the T6. Any suggestions?

Different.

T6.1 4Motion with diff lock, traction control, and trailer prep.

Please share build sheet and complete scan of the van.
Almost every option onboard is reflected in the coding - just to name a few, e.g.
VIN, engine type, gearbox, chassis type, ABS controller type, SWB/LWB, FWD/4Motion/diff-lock, cruise control type, speed limiter, parking assist, cross wind assist, TPMS type, trailer, LHD/RHD,...

 

[drinfinity]

Here’s the equipment list. I have the brake module coding on the earlier post, I will try to get the full coding for all models out of my ODB11 (it will give me 1 module at a time, but hangs when trying to share full backup).

This is the coding for module 03 Brakes
31 55 67 52 48 48 EE 85 8C 57 E6 AC 12 69 77 26 39 23 24 B8

My Volkswagen vehicle details
Selected vehicle equipment
Fuel tank with a volume of 80 l
Information kit in English
Gross vehicle weight rating: 3 200 kg
Suspension system and shock absorption for vehicles with a gross vehicle weight rating of 3.2 t
Trailer hitch preparation (incl. trailer stabilization)
Labels for country group 13
Hub caps for alloy wheels
Lockable wheel bolts
Tool kit and jack, heavy-duty, for vehicles with 3.2 t gross vehicle weight rating
Mechanical rear differential lock
Leather-wrapped multi-function steering wheel (3-spoke)
Bumpers in body color for standard paint finishes or as per color description for special paint finishes
Additional sound deadening measures in cab
Without partition
Tailgate with window aperture
Special interior noise suppression measures
4 alloy wheels "Devonport" 7J x 17, Silver, for vehicles with 3.2 t GVWR
Seat heater for seats in cab, left and right, separately controllable
Tailgate closing with unlatching from the inside
Laminated-glass windshield made of heat-reflecting glass, heated
Power-operated child safety lock
Rear window with heat-insulating glass, heated, rear window wiper and washer system
Central locking system with radio remote control, system controls inside and SAFELOCK
Auto-dimming breakaway interior rearview mirror
Glove compartment with illumination
Folding grab handle on the roof frame on the front passenger side and storage compartments on cab seats, reading light
Sliding door on the left in load/passenger compartment with power latching
Sun visors with mirror and airbag label on front passenger sun visor
Lashing rings for load restraint system
Body-colored exterior mirror housings and door handles (ext. mirror housings in Deep Black for Edition models)
Front Assist, w/ Autonomous Emergency Braking (for Adaptive Cruise Control ACC)
Radiator grille with 2 chrome trims
Grab handles on A-pillar for access, on driver and front passenger side
Exterior mirrors, power-adjustable, heated and power-folding, folding possible via vehicle key
Anti-theft alarm system with interior monitoring in cab, backup horn and towing protection
Park Distance Control in front and rear
Sep. daytime running light w/ automatic headlight control, Leaving Home feature and manual Coming Home feature
Windshield wiper intermittent control with rain sensor for windshield wipers
Adaptive Cruise Control ACC with speed limiter
Heated washer nozzles in front and washer fluid level indicator
Front fog lamps with cornering light
Type approval country GB/Northern Ireland
Part set, complying with vehicle type for Great Britain, various parts
Preparation for online services
2 12-V outlets in dashboard
All-season tires 215/60 R17 C 109/107T 104H, super-low rolling resistance
Rear view camera system (static lines)
Air conditioning system with manual control in cab
Seat trim covers in fabric "Bricks"
Lights & Vision
Adapt. Cruise Control ACC up to 210km/h and Forward Collision Warning Front Assist w/ Autonomous Emergency Braking
3 200 kg gross vehicle weight rating with 17-inch alloy wheels "Devonport"
Exterior package
Without partition
1 waste bin in door storage compartment of the cab
Digital radio reception (DAB+)
Preparation for We Connect and We Connect Plus
Highline T32
Great Britain
Towing capacity of at least 2 350 kg
Anti-theft alarm system with interior monitoring in cab, backup horn and towing protection
Comfort package
Tailgate with heated window