The latest USB drivers for the OBD2 and ELM327 interfaces and installation manuals; If you have any problems installing the software, please read the help file before contacting us. It contains details about the most common issues. You will also find more information about EOBD-Facile on the our software page. ELM327 car diagnostics interfaces. The software will automatically connect to the vehicle. In the event of a connection problem, consult the software help file. Genuine ELM327 Bluetooth Car Diagnostic Scanner will Scan. Right now and grab this universal car scanner. By thousands of professional automotive.EOBD-Facile - OBD2 software for car diagnostic.
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The ELM327 is a programmed microcontroller produced by ELM Electronics for translating the on-board diagnostics (OBD) interface found in most modern cars. The ELM327 command protocol is one of the most popular PC-to-OBD interface standards and is also implemented by other vendors.
The original ELM327 is implemented on the PIC18F2480 microcontroller from Microchip Technology.
ELM327 is one of a family of OBD translators from ELM Electronics. Other variants implement only a subset of the OBD protocols.
Uses[edit]
The ELM327 abstracts the low-level protocol and presents a simple interface that can be called via a UART, typically by a hand-held diagnostic tool or a computer program connected by USB, RS-232, Bluetooth or Wi-Fi. New applications include smartphones.
There are a large number of programs available that connect to the ELM327.[1]
The function of such software may include
- Reporting of error codes
- Clearing error codes
ELM327 Functions
- Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning (over 3000 generic code definitions in the database).
- Clear trouble codes and turn off the MIL ('Malfunction Indicator Light', more commonly known as the 'Check Engine Light')
- Display current sensor data
- Engine RPM
- Calculated Load Value
- Coolant Temperature
- Fuel System Status
- Vehicle Speed
- Short Term Fuel Trim
- Long Term Fuel Trim
- Intake Manifold Pressure
- Timing Advance
- Intake Air Temperature
- Air Flow Rate
- Absolute Throttle Position
- Oxygen sensor voltages/associated short term fuel trims
- Fuel System status
- Fuel Pressure
Protocols supported by ELM327[edit]
The protocols supported by ELM327 are:[2]
- SAE J1850 PWM (41.6 kbit/s)
- SAE J1850 VPW (10.4 kbit/s)
- ISO 9141-2 (5 baud init, 10.4 kbit/s)
- ISO 14230-4 KWP (5 baud init, 10.4 kbit/s)
- ISO 14230-4 KWP (fast init, 10.4 kbit/s)
- ISO 15765-4 CAN (11 bit ID, 500 kbit/s)
- ISO 15765-4 CAN (29 bit ID, 500 kbit/s)
- ISO 15765-4 CAN (11 bit ID, 250 kbit/s)
- ISO 15765-4 CAN (29 bit ID, 250 kbit/s)
- SAE J1939 (250kbit/s)
- SAE J1939 (500kbit/s)
ELM327 command set[edit]
The ELM327 command set[3][4] is similar to the Hayes AT commands.
Other Versions[edit]
Typical cheap ELM327 copy without label on the controller
The ELM327 is a PIC microcontroller that has been customized with ELM Electronics' proprietary code that implements the testing protocols. When ELM Electronics sold version 1.0 of its ELM327, it did not enable the copy protection feature of the PIC microcontroller. Consequently, anyone could buy a genuine ELM327, and read ELM's proprietary binary microcontroller software using a device programmer. With this software, pirates could trivially produce ELM327 clones by purchasing the same microcontroller chips and programming them with the copied code.[5][6] ELM327 copies were widely sold in devices claiming to contain an ELM327 device, and problems have been reported with the copies.[7] The problems reflect bugs that were present in ELM's version 1.0 microcode; those making the clones may continue to sell the old version.
Although these copies may contain the ELM327 v1.0 code, they may falsely report the version number as the current version provided by the genuine ELM327, and in some cases report an as-yet non-existent version.[8] Released software versions for the ELM327 are 1.0, 1.3a, 1.4b, 2.1 and 2.2 only.[9] The actual function of these copy is nonetheless limited to the function of the original ELM327 v1.0, with inherent deficiencies.
See also[edit]
References[edit]
- ^'ELM327 Compatible Software'. imechatronics.com. IMechatronics. Retrieved 6 May 2012.
- ^'ELM Electronics'. ELM Electronics. ELM Electronics.
- ^'ELM327 AT Commands'(PDF). ELM Electronics. Retrieved 6 May 2012.
- ^'ELM327 v2.2 OBD to RS232 Interpreter'(PDF). ELM Electronics. Retrieved 15 Jan 2018.
- ^'83427-elm327-usb-vehicle-obd-2-scanner-tool'. Priuschat forum. Retrieved 6 May 2012.[dubious]
- ^'ebay ELM327 mini guide'. User review. eBay. Retrieved 6 May 2012.[dubious]
- ^'Why you shouldn't buy an Elm327 Clone'. Scantool. Retrieved 6 May 2012.
- ^'ELM327 Product Information'. ELM Electronics.
- ^'ELM327 SW versions'. ELM Electronics. Retrieved 31 Aug 2015.
External links[edit]
Retrieved from 'https://en.wikipedia.org/w/index.php?title=ELM327&oldid=913006233'
This article will guide you how to install ELM327 USB cable/scanner on your Windows computer. It will then work with any OBD2 software and your car. (If ELM327 USB isn't setup properly as per instructions below — then OBD software will not even detect the cable — let alone connect to the vehicle.) Related Resources: Guide for Installing ELM327 Bluetooth on Windows Guide for Installing ELM327 WIFI on Windows |
STEP 1: Download and Install Latest Tested ELM-327 Driver Files
(Cable should NOT be connected to your laptop yet. Only connect it when instructions say so.)
Windows XP, Vista, 7:
If you bought genuine ELM327 cable from Total Car Diagnostics — then you only need to install DRIVER PACK 3. After install — go straight to Step 2 to test if it's working.
--
If you bought ELM327 cable from elsewhere (clones, eBay, other manufacturers) then install all Driver Packs below, because they cover widest range of chip makers...
![Elm327 Elm327](/uploads/1/2/6/0/126068193/326715074.jpg)
- DRIVER PACK 1
Steps to install Driver Pack 1:- If you have 64-bit Windows, double-click on: CP210xVCPInstaller_x64
- If you have 32-bit Windows, double-click on: CP210xVCPInstaller_x86
That's it!
Go to Step 2 below to test if everything is working ok...
Windows 8, 10:
If you bought genuine ELM327 cable from Total Car Diagnostics here, then you only need to install DRIVER PACK 3. Then go straight to Step 2 to test it's working ok.
--
If you bought ELM327 cable from elsewhere (clones, eBay, other manufacturers) then install all Driver Packs below, because they cover widest range of chip makers...
- DRIVER PACK 1
Steps to install Driver Pack 1:- If you have 64-bit Windows, double-click on: CP210xVCPInstaller_x64
- If you have 32-bit Windows, double-click on: CP210xVCPInstaller_x86
- DRIVER PACK 4
- DRIVER PACK 5 Most Important!
Steps to install Driver Pack 5:- Please FIRST move the unextracted folder to your Desktop, else below #2 step won't show 'Install' option.
- Right-click on 'ser2pl' (icon has a little gear pic in it) and choose 'Install', as per below pic:
- Connect ELM327 cable to your laptop. Then...
Go to: Control Panel » System » Device Manager » Ports (COM & LPT)
You will likely see a yellow mark next to 'Prolific', like this:
Right-click on it » Update Driver Software - Click 'Browse my computer for driver software'.
- Select 'Let me pick from a list of device drivers on my computer'.
- UNcheck 'Show compatible hardware'.
- Select: Prolific driver version 3.3.2.102
- Install. That's it! The yellow triangle next to 'Prolific...' should be gone.
- Please FIRST move the unextracted folder to your Desktop, else below #2 step won't show 'Install' option.
That's it!
Go to Step 2 below to test if everything is working ok...
STEP 2: Test if ELM327 USB Cable is Installed Correctly
(You can now CONNECT your ELM327 USB cable to any port on the laptop.)
Ok, we're almost ready to start scanning your vehicle.
First, let's ensure that everything is working fine!
Here's how...
Windows Vista/7/8/10: Control Panel » System » Device Manager
Windows XP: Control Panel » System » 'Hardware' tab » Device Manager
Step 2: Expand 'Other Devices' and 'Ports (COM & LPT)'
Notice any device with any one of the following names:
- FT232R USB UART
- Prolific USB-to-Serial...
- USB Serial Port
- USB2.0-Serial
- Silicon Labs CP210x USB to UART Bridge
NONE of above devices should have a yellow mark () next to them.
If none of the above has a yellow mark, then congratulations! You're ready to begin scanning your car(s). Click here on how to connect to your car in the next 5 minutes...
If any one of above devices has a yellow mark, then:
- Right-click on that device » Uninstall
- Unplug cable
- Restart PC
- Download and unextract DRIVER PACK 6
- Double-click on 'InstallUSB' to install
- Connect cable to laptop. Yellow mark should now be gone. Success!
If yellow mark is STILL not gone after doing 1-6 above, then do this:a) While cable is plugged in, right-click on device with the yellow mark.
b) Click on: Update Driver Software
c) Choose: Browser my computer for driver software
d) Browse to and select folder where you unextracted Driver Pack 6. Make sure 'Include subfolders' is ticked ON.
e) Click on: Next
f) If you get RED warning, choose: Install this driver software anyway
g) After it installs successfully, another yellow mark may appear under 'Other Device'. Eg:
h) If g above is true, then do steps a-f for 'Unknown Device'. It may also show as 'COMx'.
Even DRIVER PACK 6 didn't help? Then likely it's a 'Code 10 error' next to 'Prolific USB-to-Serial' device. Click here to fix that.
Even 'Code 10 error' fix didn't help and yellow mark () is STILL not gone? Go to Troubleshooting below.
How To Scan / Diagnose Any Car with OBD2 Software...
Step 1: Install your OBD2 software (if you don't have it — checkout TOAD OBD software). Do NOT launch it yet.
Step 2: Connect ELM327 USB to your computer and car's OBD port (usually underneat dashboard/steering wheel).
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Step 3: Place the key in the ignition and turn it forward to 'ON' position. (Position where all dashboard lights are on. This is one position before engine starts.)
Step 4: Start your OBD diagnostic software. Click 'Connect', and it should auto-connect to your vehicle. That's it!
TIP: If you want maximum data reported from the car — turn on the engine.
Yes, you can safely drive the vehicle while ELM327 is plugged in and application is monitoring car's data. Keep eyes on the road at all times.
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Troubleshooting: Solutions for ELM327 Connection Issues... |
Common Solutions:
If you're unable to connect successfully to your car, then that's because of 2 reasons:
- Your vehicle is notOBD2 compatible. (This is reason in 99% of cases, which means you can only scan it at mechanic using their $2000 OBD1 scanners.)
- Random issues that can be fixed with below solutions...
Here are solutions in recommended order:
- First check that ELM327 is physically working (not defunct). When you plug in the cable into a USB port, all the lights on ELM327 interface/device should flash. And then it'll return to 1 red light (power).
Condition of a defunct ELM327 interface: All lights will not initially flash, and only red light will be on. - Restart computer (while keeping cable connected to laptop). Try again.
- Plug USB into different physical port of your computer. Try again.
- If all above solutions fail, then we will help you (only if you are Total Car Diagnostics customer). Here's all you need to do... Connect ELM327 USB cable into laptop. (Don't need to plug the other end to car)Step 1: Go to Control Panel.Windows Vista/7/8/10: Control Panel » System » Device Manager
Windows XP: Control Panel » System » 'Hardware' tab » Device ManagerStep 2: Expand 'Ports (COM & LPT)' and 'Other Devices'.Step 3: Take picture of the screen (Press 'Print Screen' key on the keyboard then paste into any graphics program. Or take shot with camera/phone.)Step 4:Contact us and attach the picture.
Free Software To Test If ELM327 is Working with Windows and Vehicle...
Step 1: Install EasyOBD. Do not launch it until Step 4 below.
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Step 2: Connect ELM327 USB cable to laptop and car.
Step 3: Turn on car ignition. (One step before engine turns on)
Step 4: Launch EasyOBD. It will automatically connect.
If first 3 lines are GREEN (as per below pic) — then ELM327/Windows is 100% installed correctly! In which case, click here on how to connect to your car in the next 5 minutes using proper OBD-II software...
Free Elm327 Software For Laptop
If first 3 lines are not GREEN — refer to Common Solutions above.
First 3 green lines means your ELM327 cable/Windows is properly installed.
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Resources: |
Elm327 Software For Windows
- ELM327 AT Commands: List of commands you can manually type into OBD software terminal.