2014 Ford C-Max Hybrid SE – Wrench Light With P0A81
- Aug 16
- 1 min read
CUSTOMER CONCERN
Wrench warning illuminates while driving and the BECM stores DTC P0A81.
CAUSE
The high-voltage battery cooling fan failed a direct power-and-ground operation test.
CORRECTION
Remove and replace the high-voltage battery cooling fan, clear DTC P0A81, and verify battery cooling-fan operation.
