OBD2 Code P3030: Hybrid/Electric - High Voltage Battery
Hybrid/electric system fault.
Detected Root Component
Powertrain Component
Observed Symptoms
- Hybrid fault light on
- Loss of engine power
- Reduced electrical autonomy
Possible Causes
- Failed high voltagge battery module
- Faulty HT battery sensor
- Damaged wiring
- Faulty engine computer (ECU)
- Faulty cooling system
Tools Required
Interactive Diagnostic
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Parts likely to be the cause (Moteur (général))
Moteur (général)
Photo d'illustration : Moteur (général)
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Frequently asked questions about code P3030
What does code P3030 mean? ▾
OBD2 Code P3030: Hybrid/Electric - High Voltage Battery. Hybrid/electric system fault.
What are the symptoms of code P3030? ▾
Code P3030 may cause: Hybrid fault light on, Loss of engine power, Reduced electrical autonomy. The intensity of these symptoms varies depending on the vehicle and driving conditions.
What causes code P3030? ▾
The most common causes of code P3030 are: Failed high voltage battery module, Faulty HT battery sensor, Damaged wiring, Faulty engine computer (ECU). A proper OBD2 diagnostic will pinpoint the exact cause.
Is it serious to drive with code P3030? ▾
Yes, code P3030 is critical (Critical). Avoid driving and consult a professional promptly to prevent major damage.
How do I fix code P3030? ▾
Start by reading the code with an OBD2 scanner, then follow the interactive decision tree on this page. Priority causes to check: Failed high voltage battery module, Faulty HT battery sensor, Damaged wiring, Faulty engine computer (ECU). Difficulty: Medium · Estimated time: 30-60min.