Questions tagged [elm-327]

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Less than specified bytes of data from OBD

0100 (https://en.wikipedia.org/wiki/OBD-II_PIDs#Mode_1_PID_00) should provide 4 bytes of data. But there has been cases, like Audi A4 2.0 TDI, where the data from 0100 was less than 4 bytes. So is the ...
Soumya Sen's user avatar
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3 votes
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327 views

SilLabs OBDscan can't connect to Alfa 147: latency too high!

I have an OBD Scan tools built around the Silicon Labs CP210x chipset, but I can't get it to connect to my car at all. When I connect the scan tool to my laptop USB port I have a driver installed and ...
lonerunner's user avatar
3 votes
0 answers
373 views

Mazda 3/Axela RVM light when OBD2 adapter connected

I have connected a OBD2 adapter (Bluetooth ELM327) to my 2010 Mazda Axela (1990cc) and I've noticed that when my phone is connected to the adapter, the Mazda RVM alert lights on the side mirrors come ...
Madushan's user avatar
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2 votes
0 answers
936 views

Read vehicle speed from Isuzu D-Max 2015

I'm using an OBD reader with Elm327 v1.5 chip. I have made a software that reads vehicle speed (pid 010d). This software works ok on VW Transporter and some other cars but not on Isuzu D-max MY 2013-> ...
Martin's user avatar
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1 vote
0 answers
4k views

Run a forced DPF regeneration using OBD-II diagnostics

Our Jeep Grand Cherokee 2015 has problems with its exhaust filter. The error says we should drive safely at highway speeds to remedy but even after driving a few hours, it does not recover. It is ...
skywalker's user avatar
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1 vote
0 answers
101 views

Ping ECU when idle?

I recently purchased an ELM 327 mini and noticed that one of the settings on the app that I connected it to is "Ping ECU when idle" and I can turn that feature on and off. What does that mean? Thanks
alexander escoto's user avatar
1 vote
0 answers
412 views

Difference between black and blue eml327 diagnostic tool

I've recently bought an Alfa Romeo 147 1.6TS 2001 105hp(77kw), and the previous owner had an instrument, or gauge, or mileage table replaced along with electrical window and mirror button table on ...
lonerunner's user avatar
1 vote
1 answer
1k views

VAG TP 2.0 complete list of AT commands

I am trying to find DTCs from various ECUs in a Skoda Rapid 2009 model. I am using OBDLink SX (elm 327 chip) and Putty (similar to HyperTerminal) https://jazdw.net/tp20 This link gives the list of ...
Soumya Sen's user avatar
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0 votes
1 answer
2k views

How do I factory reset an OBD2 ELM327 device (not reset ECU)?

it no longer puts out wifi thank you tried turnning it off for a day, it has no reset button on the unit or PCB here is more information: Here is more information https://security.stackexchange.com/...
user3265051's user avatar
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How to completely eliminate the reverse beep on a 2012 Prius

I followed these instructions (same as described in method 3 of a wikiHow page) to "disable" the reverse beep on my 2012 Prius using a bluetooth OBD2 adapter and a mobile app to connect to it. Type: ...
Mike Eng's user avatar
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