Hello Moiso, I'm Chris, a current Ford Lincoln Mercury employee.
Thanks for visiting Just Answer. I will do my very best to help you resolve your concerns.
This code means the vehicle is not getting a speed signal which is generated by the ABS and distributed from there. You will need to see if there are any codes in the ABS module. Then you need to test the module to see if it can accessed or not indicating a faulty ABS ECU. You then need to check the VSS signal out of the ABS to the PCM.
Have not heard back from you, so I assume you are needing more assistance on this matter, if so please do reply so I can finish this question. My goal is to have nothing but satisfied customers
Thanks Hope to hear from you soon, Chris