U0121 FORD - what would be my first area to look for the solution

Question

What can I do to fix the problem? handbrake light also is on all the time. thanks for your help the Fiesta is 1200cc zetec and is on 07 plates also the speedo stopped working. hope to hear from you, with regards, Mo.

Answer 1

U0121 FORD - Lost Communication With The Anti-lock Brake System (ABS) Control Module.

It looks like the Engine Control Module (ECM) lost communication with the Anti-Lock Brake System (ABS) control module. The reason of the lost communication could that there is no power to the ABS control module. I suggest starting by checking the ABS fuse on the fuse box.

If you provide your Ford model and year, I may be able to give you the correct location of the fuse.