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P2223
Systeem
Powertrain (Diesel Emissions)
Scanner vereist
Full-system scanner (engine, ABS, SRS, transmission, service resets)

NOx Sensor Current High (Bank 2 Sensor 1)

Understand P2223, common causes, and the right TOPDON scanner to diagnose it.

Bank 2 NOx sensor current high.

Veelvoorkomende symptomen

  • Check engine light
  • Derate on heavy diesel

Typische oorzaken

  • Failed sensor
  • Internal NOx cell short
  • Module fault

Welke scanner heb je nodig?

Full-system scanner (engine, ABS, SRS, transmission, service resets)

Gebruik live data en freeze frame voordat je onderdelen vervangt. ABS-, SRS- en U-codes vereisen meestal een full-system scanner.

Diagnosetips

  • Leg freeze frame vast wanneer de code voor het eerst verschijnt
  • Wis de code pas na het oplossen van de oorzaak
  • Controleer op gerelateerde pending codes
  • Controleer of accuspanning boven 12,4 V is voordat je sensoren suspecteert

Aanbevolen TOPDON scanners

Veelgestelde vragen

What does P2223 mean?
P2223 indicates nox sensor current high (bank 2 sensor 1). Bank 2 NOx sensor current high.
Can I diagnose P2223 with a basic code reader?
P2223 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Which TOPDON scanner do I need for P2223?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with P2223?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.