Hybrid Battery Cooling Fan

The fan that cools the traction battery — on most hybrids the pack's entire cooling system, drawing cabin air through an intake grille near a rear seat, pushing it through the pack and out. That intake placement is the part's whole story: it sits at floor level in a lived-in compartment and inhales dust, carpet fibre and pet hair for years, so the commonest fault is not the fan failing but the fan choking — a rotor packed with felt, dragging at a fraction of its design speed. Heat is what ages battery packs, which makes cleaning this fan one of the cheapest life-extending jobs in the hybrid range and skipping it one of the quiet ways packs get written off early. A fan heard running long after the car is locked is the other failure direction, and a flat twelve-volt battery in the morning is its bill.

Also known as: battery cooling fan, battery fan, hv battery fan, pack cooling fan, hybrid battery blower, battery cooling blower

Referenced by 54 codes

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Codes involving this component (54)

Other components in Hybrid Propulsion

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CarGeek is a reference, not a service manual. Its pages are written from public sources and from what other people have found, never from a manufacturer's own service information, so they can be wrong or incomplete for your particular vehicle. Some of what they describe carries real risk: high voltage, fuel under pressure, stored energy, hot and moving parts.

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