Questions tagged [elm-327]

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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: ...
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54 views

ELM327 — how to read parameters

I got the ELM327 adapter and downloaded the carscanner app. It really did help understand some problems my 2016 rav4 was having lately. But I'm not sure how to interpret some of the parameters, i.e ...
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0answers
23 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
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1answer
81 views

Accident Detection, Tow Alert, Level of Car, VIN, Fuel Level Input, Ignition Control using ELM-327 OBD-II

We are building a mobile application for vehicle diagnostics. We are using the ELM327 OBD-II tool for fetching the data from the car using Nodejs. The application is being built and we are facing some ...
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1answer
3k views

Where is the Ford Fiesta 2011 speed sensor located?

I have a Ford Fiesta 2011 and the speed meter was sporadically failing (speed would drop to zero with the car moving and sometimes get back to normal). The yellow warning lamp was lit and I could ...
6
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2answers
1k views

Decoding VW Airbag DTC from elm327

I am using PuTTY (similar to HyperTerminal) and elm 327 (OBD Link LX) on my VW Polo 2015 model to read Airbag DTCs. Command sent: AT SH 715 Received: OK Command sent: AT CRA 77F ...
3
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1answer
3k views

can elm327 (bluetooth,wifi) adapters read and clear airbag(srs) codes?

There are a lot of bluetooth and wifi obd adapters but only a handful of them(e.g blurdriver) claim that they can read and clear abs and srs codes, so I'm wondering whether a cheap elm327 based ...
1
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1answer
620 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 ...
0
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1answer
192 views

Not receiving multi line response ELM 327

I am sending the following commands to my Hyundai i20 2012 model (OBDLink SX Bluetooth device): AT Z AT H1 AT L1 AT S1 AT AL AT SP6 AT SH 7D1 18 00 FF 00 The response I am getting is 7D9 10 0B 58 03 ...
2
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0answers
623 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-> ...
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0answers
49 views

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 ...
2
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1answer
325 views

ELM 327 How i can know a calculated CO CO2 HC & NOx with ELM OBDII? Is it possible?

I have a question, if i have many codes from my ELM 327 OBDII, Mass sensor, Km traveled, Lambda, Temp, fuel pressure, gallons x time, engine load.... hao i can calculated these emissions?
3
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0answers
232 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 ...
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0answers
290 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 ...
3
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0answers
230 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 ...
3
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3answers
951 views

Retrieving handbrake status light and reverse light from OBD II

I have a project to replace my car's instrument panel with a Android tablet. So I'm developing an application that communicates with an ELM327 device through bluetooth. I have managed to successfully ...
5
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2answers
573 views

Find all modules supported in my car

I own a Mahindra Scorpio S10 (2015 model) and want to find out what modules are there in my car (ECM, TCM, Body Control Module, Suspension control module etc.) using an ELM 327 Bluetooth device. Can ...
1
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1answer
2k views

How to detect Passenger Seatbelt Indicator using OBD2

I have trouble code information as below for B00D1 OBD Trouble Code which use to detect Passenger Seatbelt Indication. I am referring below links to get trouble code information: http://www....
5
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1answer
2k views

Does Fiat need dedicated FiCom OBD hardware and software for diagnostics?

I got an ELM 327 with Bluetooth from my brother in law. We have tested it in his Chevrolet Aveo with several apps and it works like a charm. When I tried it on my Fiat Panda 2012, the apps couldn't ...
6
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1answer
2k views

What does it mean when the ELM327 OBD2-reader gives two lines of info for 0100 request?

I have an ELM327-based OBD2 reader that I can issue commands to when connected to a car. I'm running this on a 2015 Acura RDX. When I issue the request 0100 to get supported mode 1 PIDs, I get the ...
9
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1answer
3k views

ATMA on OBDII not Working

I have successfully connected a terminal android app to the obd port of my car. And tried dry run of many at commands, many are working as expected. But ATMA (AT command to Monitor All) is not ...
4
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1answer
558 views

Android App for ELM 327 that allows to reset codes for Cadillac CTS

On my Cadillac I get engine light to come up because I have changed my petrol cap and sensor is malfunctioning. I got myself wifi ELM 327 OBD-2 reader, and by using my laptop I managed to get RPM of ...
2
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2answers
663 views

Setting Polling Interval on a Elm327 adaptor

Is there any terminial command I can use to set the polling interval on an elm327 device? I know that for example obdwiz allows setting the polling interval through it's graphical interface, but I ...
31
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12answers
54k views

Can a vehicle be harmed with bad inputs via an OBD-2 port?

I bought a cheap (sub $10) ELM 327 Bluetooth clone OBD-2 diagnostic adapter on a local "ebay-style" market where the seller specializes in car diagnostics and has several thousand positive reviews (...