Keydiy released a new device – KeyDiy Key Defender to prevent unauthorized vehicle key programming through the OBD system. When protection is enabled, the device blocks external attempts to add new vehicle keys while allowing normal factory diagnostics and vehicle maintenance functions to remain operational.
Here odbii365.com will show how to install and use the KEY Defender.
Instructions:
1. Download the companion app and install it on your smartphone.
2. Connect the wiring:
Red: Power positive (+)
Black: Ground
Yellow: CAN-HIGH
White: CAN-LOW
3. Carefully conceal the wiring harness and Key Defender in a suitable location inside the vehicle.
First remove the lower cover.
Then use a multimeter to find the right harness.
Connect it as shown in App.
Hide the harness and the Key Defender unit.
4. Open the app and access Device Management.
Select Bind Device, then tap Start Scanning.
Select the detected Key Defender device.
Enter the default password: 000000.
Confirm the connection, then change the default password to your own custom password.
5. Download the corresponding vehicle model data through the app.
*Keydiy is keep updating more car brands.
6. Go back to previous menu, hit Enable Protection.
Add new vehicle keys is not prohibited.
Enable protection once setup is complete.
For example, once enable protection on a Toyota, it will not allow to program new keys.
If you disable protection, OBD key programming works normally agian,
