Je viens de tester la batterie via le mode maintenance.
Get your Prius into "Accessory Mode" - Press the power button without touching the brake pedal.
Put the MFD into "Maintenance Mode" - Press and hold the "Info" button on the MFD while turning the headlights on and off 4 times.
Press the "Menu" field on the screen.
Press the "Display Check" field.
Press the "Signal Check" field.
The 12v battery voltage will be one of the items listed, it should be above 12 volts. If it is lower, either the battery needs replacement or the charging system is not functioning correctly - see step 7.
A ce stade la tension est de 12.1V ( Stable )
Put a small load on the battery by pressing the power button again without touching the brake pedal. The voltage should stay above 12v. If it drops significantly, you need a new battery.
Je constate que la tension baisse effectivement : en 30 secondes je passe de 12V à moins de 10V ( j'ai pas laissé descendre plus )
Now get your Prius into "Ready Mode" - step on the brake and press the power button. The battery voltage should immediately rise to 13.8 volts (Your Prius uses constant voltage charging). If it is lower, the battery will never charge; if it is much above 14 volts, your 12v battery will get cooked.
A ce moment la tension est supérieure à 14V ( 14.1V il me semble )
Shutting the car down will reset the system back to normal operation.
Tout semble donc indiquer un pbme de batterie non ? par contre ce que je n'explique pas est : pourquoi la prius affiche un message du type "pbme frein de parking, surtout qu'elle dispose de la tension de la batterie, donc pourrait indiquer " batterie 12v faible"