On Board Diagnostics (OBD) and accessing the car systems

Faults and Technical chat for the Seat Arona
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Dunkelmann
Posts: 74
Joined: Fri Mar 23, 2018 4:59 pm
Location: Telford, Shropshire

On Board Diagnostics (OBD) and accessing the car systems

Post by Dunkelmann » Mon May 07, 2018 7:08 am

Modern cars have an On Board Diagnostics port (hence OBD). This is an interface to the computer and control systems in the car, for example, the engine management system. In order to access them, you need a plug, a means of carrying the signals and a software app.

The plug can be connected to the app, typically by cable, Bluetooth or WiFi. The apps run on computers (e.g. Windows) or tablets/phones (e.g. Android or IOS), but there may be other OSs too.

Once connected, the app can display settings, faults and historical data in the systems in your car. Some apps will allow changing settings but this may cost extra. Some will even change a set of settings for a function, that would otherwise require several individual settings to be changed to particular values and in a particular sequence. I.e. they do the more complex programming for you.

VCDS and OBD11 are two apps that do this but there are others, some being free. I bought OBD11 as it is cheaper yet still does what I think I might want. The more expensive Pro version of OBD11 allows changing of functionality and other useful things. I still have to use it but will report back here.

For those interested in taking this further, this SEAT forum thread might be of interest.
Arona Xcellence, petrol, 1.0 TSI 115 PS, manual, Black


wotrulike
Posts: 41
Joined: Tue Feb 13, 2018 8:28 am

Re: On Board Diagnostics (OBD) and accessing the car systems

Post by wotrulike » Mon May 07, 2018 7:17 am

Hi Dunkelmann Thanks for the update, that sounds great for those of us who like to tinker, anything techie and I'm interested!
Seat Arona Excellence Lux. TSI DSG-Auto 115PS Monsoon Grey. should be delivered May 6th, CANCELLED, it never turned up :roll:


Aroza
Posts: 2
Joined: Tue Feb 27, 2018 8:38 pm

Re: On Board Diagnostics (OBD) and accessing the car systems

Post by Aroza » Fri Jul 13, 2018 2:41 pm

Nice thread! Unfortunately, the directions for coding regarding the new Ibiza and Arona are very rare!
The official OBD site has just recently published some direction for the Ibiza.
https://www.stemei.de/pages/coding/seat-ibiza-6f.php

I've used the OBD apps, like needle sweep etc and they are pretty cool.
But I am interested in the anti-theft alarm activation coding. I know it can be done, but the directions I found are false.
Does anyone know how to do it?


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BikeBert
Posts: 9
Joined: Thu Jul 05, 2018 10:35 am

2018 Seat Ibiza Adaptations - tried and tested

Post by BikeBert » Fri Jul 13, 2018 3:15 pm

I have a list of OBDeleven adaptations tried and tested on my girlfriend's 2018 Seat Ibiza Excellence 1.0 TSI 115KM DSG.
Should work on Arona as well.

Remarks:
1. It is highly recommend to make backup before changing anything in control unit. Backup will read all adaptation channels and coding and store it into backup file. Backup file can be accessed in history screen.
2. After use, disconnect [in the App] and/or remove [from the car] the device due to the risk of draining the battery.
3. You perform any of these changes at your own risk. If you aren't sure, don't do it!

You can find more info about the device and application here.



Disable Start/Stop
1. Select Control unit 19 (Gateway)
2. Security access > Access Code: 20103
3. Adaptation
4. Name: Start/stop start voltage limit
5. Change value from 7.6 V to 12 V

__________


Park Pilot (Optical Parking System)
1. Select Control Unit 76 (Parking Assistance)
2. Security access > Access Code: 71679
3. Long Coding
4. Name: Visual display for park assist
5. Change value to "OPS display" [standard: "not installed"]

__________


Pointer test - Needle sweep
1. Select Control unit 17 (Dash Board)
2. Long coding
3. Name: Staging
4. Change value to "Yes" [standard: "No"]

__________


Fan speed on Auto mode
1. Select Control unit 08 (Air Condition)
2. Long Coding
3. Name: Blower display in auto operation
4. Change value to "activated" [standards: "Not activated"]

__________


Seat belt warning deactivation
1. Select Control unit 17 (Dash Board)
2. Security access > Access Code: 25327
3. Long Coding
4. Name: Seat belt warning
5. Change value to "Off" [standard: "On"]

__________


Comfort blink cycle
With this mod, you can change number of flashes of the turn signal
1. Select Control unit 09 (Central Electrics)
2. Security access > Access Code: 31347
3. Adaptation
4. Name: Außenlicht_Blinker
5. Access Control: Komfortblinken Blinkzyklen
6. Change the desired value: max. 5 [standard – 3]
7. [Reset “Lights” to factory settings on the radio]

__________


Folding Mirrors (while locking the car)
With this mod, mirrors will fold without having to be continually pressing the button on the remote
1. Select Control unit 09 (Central Electrics)
2. Security access > Access Code: 31347
3. Adaptation
4. Name: Spiegelverstellung
5. Access Control: Funk_Spiegelanklappung_Modus
6. Change value to "by_look_command_via_remote_control_key" [standard: "by_convenience_operation_via_remote_control_key"]

__________


DLR lights off with hand brake
1. Select Control unit 09 (Central Electrics)
2. Security access > Access Code: 31347
3. Adaptation
4. Name: Außenlicht_Front
5. Access Control: Tagfahrlicht_Dauerfahrlicht_bei_Handbremse_abschalten
6. Change value to "active" [standard: not active]


JustAskSpike
Posts: 20
Joined: Tue Apr 10, 2018 2:31 pm

Re: On Board Diagnostics (OBD) and accessing the car systems

Post by JustAskSpike » Tue Jul 17, 2018 8:34 pm

Does anyone know where the OBD port is on the Arona, is it easy to get to?


Aroza
Posts: 2
Joined: Tue Feb 27, 2018 8:38 pm

Re: On Board Diagnostics (OBD) and accessing the car systems

Post by Aroza » Wed Jul 18, 2018 7:00 pm

JustAskSpike wrote:
Tue Jul 17, 2018 8:34 pm
Does anyone know where the OBD port is on the Arona, is it easy to get to?
It's on the left-hand side, under the light switch.
That's it if you have the wheel on the left side as well.
You can't see it, but it's pretty easy to reach.


JustAskSpike
Posts: 20
Joined: Tue Apr 10, 2018 2:31 pm

Re: On Board Diagnostics (OBD) and accessing the car systems

Post by JustAskSpike » Wed Jul 18, 2018 8:40 pm

Found it. No need to pull anything off, just put your head under the steering wheel. Thanks


Sokken
Posts: 4
Joined: Fri Jul 13, 2018 3:06 pm

Re: On Board Diagnostics (OBD) and accessing the car systems

Post by Sokken » Thu Jul 19, 2018 3:14 pm

Hi.

If I disable the start / stop function, will i lose the warranty?


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GazzaB
Posts: 327
Joined: Fri Feb 23, 2018 10:58 pm
Location: Hampshire
Contact:

Re: On Board Diagnostics (OBD) and accessing the car systems

Post by GazzaB » Tue Jul 24, 2018 8:13 pm

Good Question on Warranty, in theory it could invalidate your Warranty, Also with the new MOT coming out, Will this not be within the test parameters. So if it is disabled permanently could be a failure?

I have the KESSY system, which is only a half system as only works on the drivers door and boot. unlike the golf system which both front doors and boot.
I have to hold my hand on the door handle to close the mirrors, would this be the same convenience operation as above, as this is reacting like the key. I need to Find my VCDS computer and cables. and adjust this, as it is plain annoying.
Arona Excellence Lux 1.0TSi 115PS DSG. Nevada White with Black Roof, OEM dark window tint, Fitted a Carbon Fibre look rear Bumper Guard. Pressed Metal Number plates with Carbon fibre plate holder.
Planning to Do: Sound Deadening.


Maziac
Posts: 52
Joined: Tue Feb 27, 2018 12:10 pm

Re: On Board Diagnostics (OBD) and accessing the car systems

Post by Maziac » Wed Jul 25, 2018 10:00 am

Thank you GazzaB for resolving a major issue for me. Before reading your post I was struggling with the folding mirrors. I had to press the key fob for a few seconds before the mirrors would fold. Once you said that the same thing could be achieved by just covering the sensor on the drivers door for a few seconds, my problem instantly disappeared. No more need to hunt around for the key when locking the car. Keyless means keyless once again!


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