Why Protect the OBD Plug?
Automotive key programming tools are easy to purchase and becoming much more affordable. You can purchase them online and do not have to be a register automotive locksmith to get one.
Once a vehicle has been accessed a key programmer can be plugged into the OBDII port. From here an “All Keys Lost” command can be sent so that a new remote, or proximity key can programmed. There are heaps of videos on YouTube showing how this is done and it normally takes less then 3 minutes. Once a new Smart Key has been programmed the car can then be driven away!
How can the OBD Port be protected?
Capping the OBD Plug
The cheap DIY option is to purchase an OBD Plug that caps the plug preventing physical access to the connector.
OBD BLOCK by Author Alarm
OBD BLOCK prevents the ODBII port from working without the adaptor.
The Unique adaptor sends a digital code to the blocking device to reconnect the Communication wires. You simply plug the adaptor in to the OBD port to allow the port to be used for servicing.
There is no visual sign that the OBD Port is blocked and the blocking device is hidden in the vehicle wiring loom.
Installed Price: $270.00
Vodafone Automotive OBD Protect
OBD Protect is a programmable option with the Vodafone Automotive 4822 alarm system. It works in a similar way to the OBD BLOCK as it cuts the communication wires to the OBD Port as soon as the alarm is armed.
The OBD port will still work when the alarm is disarmed and the ignition is turned on. It will remain connected for pre set time when the ignition is turned off so should cause no issues for genuine diagnostic work. 30 seconds after the ignition is turned off the OBD Protect kicks in to stop the port working.
I recommend using this in conjunction with the High Security System.
Installed Price: $60.00
Note: Requires a 4822 alarm an a selected Auxiliary output
OBD protection is highly recommended if you have a vehicle with a smart proximity key and push to start button, even a cheap eBay cover is better than no protection.
The advantage with hidden protection is that a thief would not know what they are dealing with. If you can’t see it, or know what it is then it’s much harder to find and defeat.
