Greetings from Fort Myers Fl. My wifes 2013 c-max energi started locking wheels. After replacing both front calipers, abs sensors the problem persisted, it ended up being the abs pump module needs replacing. Almost had a heart attack when i took it to a well recommended mechanic, the quote was for $2,900.00. 1500 for the parts, reprograming charge, labor, and misc.
I am sending the module to module experts for repair, $250.00 for repair and shipping, no reprograming needed. Granted it was a pain to remove, the energi model has the abs in the right corner and required moving the inverter just to gain space to barely squeeze my hand.