Ford P0AA5 OBD-II Trouble Code Definition: P0AA5 Hybrid Battery Neg P0AA5 Ford OBD-II Trouble CodeDescription: Trouble Code: System: Subsystem: P0AA5 – (ASE) Powertrain — DTC Description: Hybrid Battery Negative Contactor Circuit Stuck Open Location: Analysis: Likely Cause: Stuck Open Notes: […]