🟢 Toyota Prius 2017 Battery draining overnight parasitic drain

Toyota Prius 2017 battery dead every morning. Replaced battery twice. Something draining it overnight. 112817 km. This fault code is stored when the engine control unit detects a specific fault condition. Common causes include sensor failures, wiring faults, and component wear. Always read additional fault codes before replacing parts — multiple codes together provide a clearer diagnosis. Clear the code after repair and test drive to confirm the fault does not return.