Code Definition

P0A97 — Hybrid battery pack cooling fan 2 stuck off

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P0A97

P0A97 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P0A97 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

On hybrid and electric vehicles cooling fan 2 helps keep the high voltage battery pack within its temperature range. DTC P0A97 sets when the hybrid or EV control module commands hybrid battery cooling fan 2 to run but gets no indication that it is working, such as no feedback voltage, no current draw, or no temperature response, so the module concludes the fan is stuck in the off state. Unlike a general circuit fault, this code specifically means the fan is not turning on when it should, usually from an open circuit, a dead fan motor, or a control driver or relay that is not switching. With re...

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