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Voltage Auto Service specializes in advanced hybrid, plug-in hybrid and EV diagnostics. Schedule an appointment to have the fault properly tested before replacing parts.

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.

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