F11 is one of the worst fault codes. Even the Factory Is not clear on its cause.
What I do is check the two blue wires that go from the motor control unit (MCU) to the central control unit (CCU). Make sure they are connected well and are not broken. Ohm 'em out, end to end.
Beyond that, your probabilities of successful repair are as follows:
- Replace the CCU: 95% chance, part link ==> Central Control Unit
- Replace the MCU: 25% chance, part link ==> Motor Control Unit
- Replace the wire harness: 10% chance. Okay, the wire harness may be 5% chance.
That code may also mean your F'd and you will be back 11 times. Just kidding! Good luck with it.
On a happy note, any parts ordered thru this site have a 365-day return policy, even on electrical parts that have been installed!