Hi everyone, first time poster here, I have a problem with my i20, my Mrs has been driving it and heading downhill the ABS, skidlight and handbrake lights all pop on the dash, once she turned the vehicle off they all went away. But today they have came back and stayed on. I plugged a friends snap on into the car and the 3 codes below came up. C1207 - Left rear sensor speed jump, C1211 - Right rear wheel speed sensor air gap, C2112 - Valve relay or fuse fail. Any advice on how to fix these? Would it just be a case of replacing the speed sensor on the left and 'gently persuading' the right back in to close the air gap? Any advice would be most helpful.