Code result
P0C73
Hybrid Battery Pack Cooling Pump Performance
Moderate severity
What it means
BMS detects insufficient flow from the battery cooling pump despite commanded operation, indicating mechanical degradation or air pocket.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Pump worn
highOne of the most commonly reported causes for this code — check this first.
Air trapped in cooling circuit
mediumA plausible cause — test and verify before replacing parts.
Related help
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