P0BBEHybrid/EV Battery Pack Voltage Variation
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0BBE watches the gap between the highest and the lowest cell voltage in the pack. GM's first-generation Volt sets it when that difference exceeds 0.3 V in 50 of 245 samples taken every 100 ms, provided the cell voltage rationality fault is not active; it is a one-trip Type A fault. Stellantis lists the code on the Jeep Grand Cherokee 4xe and Wrangler 4xe together with P0B24, P0DAB and a state-of-health code, where updated battery pack control module software is the remedy and an unresolved case can end in a no-start. Chrysler's warranty extension for the 2017 to 2021 Pacifica Hybrid replaces the whole high-voltage pack for this code. Its companion P0BBD reports a spread that has exceeded a set limit.
- What you may notice
- MIL and hybrid system warning
- Reduced electric range or propulsion
- Vehicle may not start
- Likely causes
- LikelyCells drifted apart beyond what balancing can correct
- PossibleBattery pack control module software needing an update
- PossibleDefective or aged high-voltage battery pack
- RareFaulty cell voltage measurement simulating a spread
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €15,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.