No, you cannot unmarry an Accessport from a car without having access to that specific vehicle. The process of "unmarrying" is a specific function within the Accessport's menu that reinstalls the vehicle's original factory Engine Control Unit (ECU) map. This must be done while the Accessport is physically connected to the OBD-II port of the car it was previously "married" to. Attempting this without the car is impossible.
When you "marry" an Accessport to a car, it stores a backup of your car's stock ECU tune. Unmarrying is the reverse process; it flashes this saved stock map back onto the ECU, returning the car to its factory state and freeing the Accessport to be used on another vehicle. If you no longer have the car—perhaps you sold it or it was totaled—the Accessport becomes effectively locked. It will display a message like "Uninstall Required" and cannot be used to tune a different vehicle until it is properly unmarried.
Your options are limited if the original car is unavailable:
- Contact Cobb Support: Your best course of action is to reach out to Cobb Tuning's customer support directly. In some specific cases, such as a totaled vehicle, they may be able to reset the Accessport for a fee, but this is not guaranteed and requires documentation.
- Sell as a Locked Unit: You can sell the Accessport, but you must clearly advertise it as "locked" or "unmarried." The price will be significantly lower, as the new buyer would need to send it to Cobb for service.
- Buying a Used One: This is a critical reminder for buyers: always verify that a used Accessport is unmarried before purchasing. A married unit is useless to you unless you own the exact car it's locked to.
The core principle is that the marriage is a vehicle-specific security link. The only reliable way to break it is with the car present.
