P0560 2008 Toyota Prius Code - System Voltage Malfunction

P0560 indicates a "System Voltage Malfunction," which means the vehicle's powertrain control module (PCM) has detected an issue with the overall electrical system voltage being outside the normal range.

Symptoms may include dim or flickering lights, difficulty starting the car, warning lights on the dashboard, erratic vehicle performance, or the vehicle entering limp mode.

Common causes include a failing 12-volt auxiliary battery, faulty inverter/converter, loose or corroded battery connections, wiring issues, or a malfunctioning voltage regulator.

Yes, a weak or failing 12-volt auxiliary battery is one of the most common reasons for this code in a Prius.

Start by checking the 12-volt battery voltage and connections, inspect the electrical wiring and fuses, and use a multimeter to measure system voltage. A scan tool may also help identify additional related codes.

Yes, driving with this code can cause further damage to the electrical system or components like the inverter. It’s best to address the issue promptly.

Repairs may include replacing the 12-volt battery, repairing corroded or loose connections, replacing a faulty inverter/converter, or addressing wiring issues.

Not directly. P0560 typically relates to the 12-volt auxiliary battery or electrical system rather than the high-voltage hybrid battery.

Costs vary depending on the cause. A 12-volt battery replacement may cost $200–$400, while inverter/converter repairs can be significantly more expensive, ranging from $1,000–$3,000.

Clearing the code without addressing the root cause will not fix the issue. The code will likely return until the underlying problem is resolved.