Diagbox telemetry

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Envoyé par darkjojo78

does not work for my ecu .

i found an application on android runs with the chip elm327 and offers functions that approaches the diagbox without the telemetry
https://play.google.com/store/apps/d....faplite&hl=fr

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I didn't know this app: I will test it, analyzing the data traffic on the CAN bus, to see if the app uses custom PSA PIDs or the classical OBDII PIDs.

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Envoyé par mfc

probably every ECU revision use different addresses and PID codes: the ecu on my car is the MEVD17.4.4.
If you have still access to the diagobox tool, you can easily discover the address+custom PID for every parameter:
you must connect the diagobox tool and the ELM327 dongle together to the OBD port, put the ELM327 in "listening mode" and, on the diagbox, select to measure only one parameter at a time (using the dedicated menu)
Let me know if you need other infos about that...

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how to connect the box elm327 and the diagbox together on the same socket obd

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Envoyé par darkjojo78

how to connect the box elm327 and the diagbox together on the same socket obd

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the easiest way is to buy a OBDII "Y" or "splitter" cable with 1 male and 2 females connectors

I did not know that it exists, otherwise can you explain to me a little more the setting to do on the diagbox with the elm327


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as I had already written in a previous post, to enable the listening mode:
AT H1
AT D1
AT CAF0

to listen all the messages from the 6xx addresses:
AT MR 06

to listen all the messages from the 4xx addresses:
AT MR 04

to listen a specific message address (e.i. 0x488):
AT CF 488
AT CM FFF

on the diagbox tools, there is a menu like "personalized parameter reading" in which you can select which value to read continuously
if you need it, tomorrow, I can send you a screen shot of this menu...

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Envoyé par mfc

as I had already written in a previous post, to enable the listening mode:
AT H1
AT D1
AT CAF0

to listen all the messages from the 6xx addresses:
AT MR 06

to listen all the messages from the 4xx addresses:
AT MR 04

to listen a specific message address (e.i. 0x488):
AT CF 488
AT CM FFF

on the diagbox tools, there is a menu like "personalized parameter reading" in which you can select which value to read continuously
if you need it, tomorrow, I can send you a screen shot of this menu...

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I received my cable today, to connect the diagbox and the elm327. I made custom measurements with the diagbox and monitor the bus can with elm327 on the engine calculator. Diagbox uses the 6A8 header for engine calculator

regime moteur / engine rpm
6A8 5 04 21 C0 80 01

température calculateur/ calculator temperature
6A8 5 04 21 CB 80 01

température air extérieur / outside air temperature
6A8 5 04 21 C2 80 01

température eau / water temperature
6A8 5 04 21 C0 80 01

température huile / oil temperature
6A8 5 04 21 C2 80 01

position pédale accélérateur / accelerator pedal position
6A8 5 04 21 CA 80 01


https://uploads.tapatalk-cdn.com/202...7d224d22f0.jpg

on décortique la ligne de commande custom init
at sp 6 pour la sélection du protocole iso 15765-4 can (11 bit id, 500 kbaud)
at sh 6a8 pour sélection de l'en-tête
at fc sd 30 00 00 flow control set data
at fc sm 1 flow control set mode
at cra 688 set the can rx addr
81 pour se connecter au calculateur moteur
10c0

après essai sa fonctionne pas, mais j'ai peut être trouves le problème qui viendrait de la commande at fc sd 30 00 00. Sur ma 208 avec le diagbox il envoi la commande 6a8 30 00 05, je vais remplacer le 30 00 00 par 30 00 05

nouvelle custom init
atsp6\natsh6a8\natfcsh6a8\natfcsd300005\natfcsm1\n atcra688\n81\n10c0


https://uploads.tapatalk-cdn.com/201...30bc8eb13a.jpghttps://uploads.tapatalk-cdn.com/201...e28a64fe24.jpg

1- on lance le scan de tous les calculateur sur le diagbox

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2- on se connecte au calculateur MEVD17.4.2

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3- on lance une mesure personnaliser

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on retrouve bien les ligne
6A8 01 81
6A8 30 00 05
6A8 04 21 C0 80 01
avec les en-tête 6A8 et 688

Super travail, j'ai hâte de voir la suite !

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Envoyé par Hugo

Super travail, j'ai hâte de voir la suite !

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merci hugo. je vais faire un nouveau fichier spécial pour 208 gti ph1 et abandonne le fichier c4 du russe vu qu'il y a des différence avec les calculateur