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Home DTC Codes P9605 Hard · 45-90min
P9605 Critical

OBD2 Code P9605: 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 Hard
Est. time 45-90min
Tools Required 5 tool(s)

Tools Required

multimeter oscilloscope (optional) insulated HV gloves wiring diagram OBD scanner

Interactive Diagnostic

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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 P9605

What does code P9605 mean?

OBD2 Code P9605: Powertrain System - Fault Detected. Powertrain fault detected by the computer.

What are the symptoms of code P9605?

Code P9605 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 P9605?

The most common causes of code P9605 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 P9605?

Yes, code P9605 is critical (Critical). Avoid driving and consult a professional promptly to prevent major damage.

How do I fix code P9605?

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: Hard · Estimated time: 45-90min.