xiaotec "850 OBD-II" Android app on Google Play for '96-'98 850/S70/etc

[Esperado]

My car is a S70 T5 1998 (build in 1997). VIN: YV1LS5306W2479914 / Android 8

I'm not 100% sure, but it seems that, il live and Lambda/graph, the app does not start sending data to the ECU when in horizontal. The start button do not respond in this situation. But it do not responds always when the phone is in vertical as well. I'm obliged to try several times to get-it working, restarting the "live" function.
Too, the App is VERY slow to read and clear DTCs. while TORQUE is quasi instant once connected to Bluetooth.

[xanthefin]

Ah no need obligations here. I hear you.

I confirm your bug with wifi if i drop connection it seems stay in wrong states time to time. Trying prevent user sending multiple times commands between runs. Will work those too surely.

The app works totally differently how Torque leaves things out what my app doesn't or does things in background (doing while "connecting") so when you press things there its already connected in Torque (Standard OBDII).
My app doesn't do such things in background as firstly Volvo is not around standard OBDII where you can have instant communication in modules via almost one step command as ELM327 designed to that (just send two commands including reset or read DTC).
Volvos needs first step prep ELM327 in correct settings (and message formats) to connect in ECU's correctly so its hard to compare Torque to how my app works. Plus i designed standard OBDII to include PID scanning and other information which i believe Torque is separate command rather than in fault code scan.

Just to notice here i don't actually say it to be Fault code Scan in my app.. just a 'Scan' as it does as by the name Scan ALL information of Control Units in one go what app can do. I wanted it to be simple all in one go solution... not just DTC or Fault codes. Thats why there is speed differences.


P.S. I noticed actually and i guess i find where your connectivity fails... i noticed i didn't put block to press Graph while running as it then left Motronic example in wrong situation where it may fail connect again in such short notice. Fixing while writing now.

[Esperado]

It was not a reproach. Just a feedback. I have a recurring lambda light problem. So I use Torque, much faster to clear the fault.
You App is just fantastic and I will never been graceful enough.

[xanthefin]

No no.. i love feedback and all is welcome as usually people are silent and i am thankful too i just fixed one wifi bug too here due that as started looking around your connectivity earlier mentioned hehe. And i just wanted explain where speed difference occurs or why as it was good question not many asks. Hope just it gives good answer.. if not i might try again better way next time.

[xanthefin]

Sorry pump but just as update after long time silence... i did manage say "hello world" to 200? DIM Dashboard over CAN Bus over CEM via OBDII port with ELM327. And It is possible to read fault codes with it. Only need make adapter moving ELM327 CAN Bus to correct pins (not to short circuit) or a switch to it like guys with fords "MS switch".

Quick edit: CAN Bus SRS too now read with ELM327.


Just need translate codes again what they mean (most boring work)..

After i build CEM/SRS/DIM bench over my holidays i noticed my previous attempts was quite off to open CAN Bus over CEM with ELM327 at Gaugetest as it was previosly only direct connections with ELM and DIM so without CEM being at middle tested as i didn't just have one...

[xanthefin]

Boring.

1999 CDM uses same address as 2003 V70 CEM. This will be quick addition to read fault codes, VIN code etc via app from 200x? year V70 CEMs and or reset with ELM327. No need any mods to ELM327. Or can use already "CDM" option in Scan to do this but it will show as "CDM" etc in summary.

[xanthefin]

Quick two year update.


After adding ME7 Live Data first items now for next coming update has been adding mostly all fault codes for P2 Volvos what good ELM327 can read without modification as per Volvo so..


P2 Volvo CEM, ME7, BCM (ABS), TCM Fault codes.
P80 Volvo CDM and MSA15.8 Fault codes (.. and little updated fault code listing for already had DENSO)


..ETM as doesn't itself generate fault codes directly but through ME7 it does so i am not mentioning it.

Screenshot_20240528_123546.jpg (69.63 KiB) Viewed 3264 times

SRS and DIM example requires adapter or modification to ELM327 so not yet but soon reading and clearing those ex. from P2's ( famous SRS light too ) if have modded adapter which makes possible switch CAN Bus.


App name is where all started at this point.
Update about this will be out this week with bug some bug fixes again so App will be more useful for P2 Volvos too. I try add still some other thing(s) from TODO lists.



Update:
Did visit coworker's S60 with CEM-L and now after noticed little bug for his car so fixed for it too so now reads and clears fine Fault Codes from ECM and all previously mentioned.. .


Advanced commands and specially Live Data for all ECUs of the CAN Bus will take a moment to be added but will eventually be added. App has already example TCM oil counter and adaption reset and so on.


Update#2: V1.8.0 Send out now to Google.
Enjoy P2 owners if holiday trips requires DTC reading you can now.


Update#3: V1.8.2
Feedback has been so far that ME7 CAN Bus Live Data works great. So..

Lets make way more serious with P80 & P2 ME7 ECM CAN Bus Live Data.. even with data you can't see on Volvo own diagnostic tools.

[VolvoTR]

Hello;
I first installed the application for the VGLA module (adding remote control), but I could not benefit from most of its features. First, I received information that the version of my ELM 327 device was not supported. Then I bought a new ELM 327 V1.5 device and tried it. This time, I received different errors. For example, the dashboard test, fuel I could not get any results from pump test or VGLA PIN decoding. Actually, I got live data and error codes, but I couldn't understand exactly where I see the result. For example, I am testing the SRS system, but I cannot see where the error codes are.
On the VGLA PIN screen, for example, when performing operations from the bottom, the ABS lamp flashes, then it clears up, but it gives a warning even though the ignition is in position 2.
I am sharing with you the screenshots I took as an example. If anyone has information on the subject or has a document about the program, I would be very pleased.

[esl_97_850_T5]

The bottom of 3rd image shows your 2 OBDII DTCs (that are causing the CEL / MIL light to come on) are both P0172.

Other forum members can help you with diagnosing possible sources of the P0172.

[VolvoTR]

The bottom of 3rd image shows your 2 OBDII DTCs (that are causing the CEL / MIL light to come on) are both P0172.

Other forum members can help you with diagnosing possible sources of the P0172.

Thank you for your answer, I know the error code. Since I have LPG in my vehicle, it sometimes shows a rich mixture. I could clear it with all OBD programs before.
Today, I connected a KKL cable via OTG and tried it, it connects but it stays at 0% and does not progress, the same cable works properly in vol-fcr.
In short, I couldn't get any results from the program or the ELM device I bought.