STEP 1: Download Latest ELM-327 Drivers
(Cable should NOT be connected to your laptop yet.)
Download the following ELM327 drivers: Driver Pack 1, Driver Pack 2
Double-click to install them.
STEP 2: Plug ELM327 Cable Into Your Laptop
(Cable should NOT be connected to your car yet.)
Plug your cable to any USB port on your laptop.
If drivers successfully install, skip to: Step 6
If drivers don't successfully install, go to: Step 3
If the "Hardware Wizard" windows opens (as shown below), just Cancel it.
Move onto Step 3...
STEP 3: Download Additional Drivers
Download additional ELM327 drivers here.
And unextract the downloaded ZIP file anywhere on your computer.
STEP 4: Access Device Manager
Control Panel » System » Device Manager
Control Panel » System » "Hardware" tab » Device Manager
STEP 5: Install Latest Drivers
Right-click on "FT232R USB UART" or "USB Serial Port" — and click on "Update Driver Software" — as per below pictures:
Then Browse to the folder where you unextracted drivers from Step 3.
NOTE: If you don't see above devices in your Control Panel,
assume everything is working, in which
case go to Step 6 below.
STEP 6: Install OBD Software & Connect Cable to Car
TIP: Never have more then 1 OBD software open on your computer.
A) Install your OBD software. Don't launch it yet.
B) Connect the cable to your computer and the car.
C) Place the key in the ignition and turn it forward to the "ON" position. (Position where all dashboard lights are on. It's one position before engine starts.)
D) Launch your OBD software. Click "Connect", and it'll auto-connect to the car.
TIP: If you want maximum data reported by your OBD software, you'll need to have vehicles engine running.
|Troubleshooting Connection Issues:
If you're unable to connect successfully in Step 6 — here's suggestions 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 on a defunct ELM327 interface: All lights will not 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.
- Change "COM Port Number" to 5-6 (see how). Try again.
- Go to your Device Manager
- Windows Vista/7/8: Control Panel » System » Device Manager
- Windows XP: Control Panel » System » "Hardware" tab » Device Manager
Do you notice any Yellow marks next to any device. Like this:
If you do, then please take a screen shot of your screen. (Press "Print Screen" on your keyboard.)
You can then paste it in Word, or any graphics software you own.
Save the file.
Submit a ticket and attach the screenshot.
(We'll reply with possible fix - because picture is worth a thousand words).
Changing the COM-Port Number:
Right-click on "USB Serial Port" or "Silicon Labs CP210x USB to UART Bridge" and click on "Properties" — as per below pic:
- Click: Port Settings
- Click: Advanced
- For "COM Port Number" — you MUST choose any number between 1-4. Ideally 1. It's it's taken, then 2. Etc.
Test If ELM327 Interface is Communicating with Windows
Download this small test EasyOBD software.
Before you launch it, close any other OBD software you have running.
Connect cable to computer. (No need to connect to car yet.)
It will automatically connect to your cable.
If first 3 lines are GREEN (as per below pic) — then connection is working! In which case, proceed to Step 6.
If first 3 lines are not GREEN — refer to Troubleshooting.