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Home DTC Codes P9444 Medium · 30-60min
P9444 Critical

OBD2 Code P9444: Powertrain System - Fault Detected

Powertrain fault detected by the computer.

ECU: BMS

Detected Root Component

Powertrain Component

Confidence level: low

Observed Symptoms

  • Hybrid fault light on
  • Loss of engine power
  • Reduced electrical autonomy

Possible Causes

  • Failed high voltage battery module
  • Damaged wiring
  • Faulty engine computer (ECU)
  • Faulty cooling system
Diagnostic Progress 0 %
Difficulty Medium
Est. time 30-60min
Tools Required 4 tool(s)

Tools Required

multimeter OBD scanner wiring diagram test light

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Diagnostic Result

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Parts likely to be the cause (Moteur (général))

Moteur (général)

Moteur (général)

Photo d'illustration : Moteur (général)

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Frequently asked questions about code P9444

What does code P9444 mean?

OBD2 Code P9444: Powertrain System - Fault Detected. Powertrain fault detected by the computer.

What are the symptoms of code P9444?

Code P9444 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 P9444?

The most common causes of code P9444 are: Failed high voltage battery module, Damaged wiring, Faulty engine computer (ECU), Faulty cooling system. A proper OBD2 diagnostic will pinpoint the exact cause.

Is it serious to drive with code P9444?

Yes, code P9444 is critical (Critical). Avoid driving and consult a professional promptly to prevent major damage.

How do I fix code P9444?

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, Damaged wiring, Faulty engine computer (ECU), Faulty cooling system. Difficulty: Medium · Estimated time: 30-60min.