BMW 330e Drivetrain Full Power Reduced Warning Message
Do you have a BMW 330e Drivetrain Full Power Reduced warning message?
Don’t ignore it – book a diagnostic today and get expert help.
The following fault code(s) may be present
21F125 High voltage battery cell supervision circuit – over voltage
21F1F6 High voltage battery switch contactors – switch off after fault
0316D6 High voltage battery unit – Category 6 fault command-based opening of switch contactors
0316D1 High voltage battery category 1 fault
Affected Vehicles
BMW 330e G20
- BMW 330e G20 2019
- BMW 330e G20 2020
- BMW 330e G20 2021
- BMW 330e G20 2022
- BMW 330e G20 2023
- BMW 330e G20 2024
- BMW 330e G20 2025
Common Failure Symptoms
- “Drivetrain Full Power Reduced” warning message appears on the instrument cluster
- Drivetrain and high-voltage (HV) warning lights illuminate during sudden acceleration or heavy load
- Significant reduction in electric-drive power or hybrid system switching earlier than expected
- Imbalance in battery cell voltages or high-voltage battery modules reaching unsafe thresholds
- Possible drive-system limp mode, reduced range, or hybrid system behaving unexpectedly
Do you have a BMW 330e Drivetrain Full Power Reduced warning message?
Don’t ignore it – book a diagnostic today and get expert help.
BMW 330e Diagnostic Report
BMW 330e Repairs
Resolution
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High Voltage System Repairs
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