P2AD5
Intermediate System Voltage High
The intermediate (DC-link) system voltage in the hybrid power electronics is above the expected window. Common during regenerative braking when energy recovery exceeds storage capacity.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
Common causes
Ordered by how often each turns out to be the cause.
- Regenerative braking overshootCommon
- BMS cell balancing off - voltage spikesPossible
Parts involved
- Dc Link Capacitor
- Hv Battery
- Regenerative Brake System
P2AD5 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.