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P2222
Systeem
Powertrain (Diesel Emissions)
Scanner vereist
Full-system scanner (engine, ABS, SRS, transmission, service resets)

NOx Sensor Current Low (Bank 2 Sensor 1)

Understand P2222, common causes, and the right TOPDON scanner to diagnose it.

Bank 2 NOx sensor current low.

Veelvoorkomende symptomen

  • SCR warning
  • Emissions fail

Typische oorzaken

  • Failed bank 2 probe
  • Exhaust contamination
  • Wiring 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 P2222 mean?
P2222 indicates nox sensor current low (bank 2 sensor 1). Bank 2 NOx sensor current low.
Can I diagnose P2222 with a basic code reader?
P2222 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 P2222?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with P2222?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.