[Guyver 1]

Hi all.
Totally new to this.
I have a 2007 Cmax 1.8 Petrol and the ABS light has come on and stays on.
I took it to my local garage and he plugged in what looked like a Tablet and it threw back a code that he's never seen before
Undocumented B20FF
I've tried to search the Internet for the code but no joy.
Any suggestions would be greatly appreciated.
Many thanks in advance.

 

[PURPLE_2L_LX]

Get yourself an OBDII reader tha uses the Forscan software or App and try that instead. Some codes
maybe missed even expensive garage readers.

 

[Guyver 1]

Thank you so much for your suggestion. I bought an OBD2 reader which came with a disc with FORScan from Ebay. It only cost me £17 much cheaper than what a garage would charge and it found the fault straight away, Right Rear Wheel Sensor.
Once again, Thank You.