Ford B166a60
If wiring and the sensor are intact, visit a Ford dealership. They can check for TSB (Technical Service Bulletin) 22-2147 or similar, which provides a software patch for the RCM that desensitizes it to normal signal fluctuations.
A severely discharged battery or jump-start can cause the RCM to see erratic voltage from the OCS during its power-up self-test, temporarily setting B166A60. ford b166a60
While this code can appear on any Ford equipped with an Occupant Classification System, certain models and years show a higher propensity: If wiring and the sensor are intact, visit a Ford dealership
Embedded inside the seat cushion is a thin, flexible pressure sensor mat. If a heavy person sits down aggressively, liquid spills onto the seat, or the seat foam deteriorates, the mat can crack or delaminate. liquid spills onto the seat