Owners Manual for second generation Ford Fusion, ,odel years 2013-2020, a four-door, five-passenger mid-size sedan manufactured and marketed by the Ford Motor Company...
Other information:
Removal
WARNING:
Before beginning any service procedure in this
section, refer to Safety Warnings in section 100-00 General Information.
Failure to follow this instruction may result in serious personal
injury.
Follow the health and safety precautions...
Removal
NOTICE:
Do not remove or install the M8 nut (20 Nm) on the cable
eyelet bolt while the battery monitoring sensor is attached to the
battery post as this causes damage to the sensor, connector, and
possibly the battery post and case.
Disconnect the battery...