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P2214
System
Powertrain (Diesel Emissions)
Scanner som krävs
Full-system scanner (engine, ABS, SRS, transmission, service resets)

NOx Sensor Negative Current Control Circuit Low (Bank 1 Sensor 1)

Understand P2214, common causes, and the right TOPDON scanner to diagnose it.

NOx negative current control low.

Vanliga symptom

  • Check engine light
  • Derate

Typiska orsaker

  • Short in harness
  • Failed NOx sensor
  • Heat damage at connector

Vilken scanner behöver du?

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

Använd live-data och freeze frame innan du byter delar. ABS-, SRS- och U-koder kräver oftast en fullsystems-scanner.

Diagnostiktips

  • Spara freeze frame när koden först sätts
  • Rensa koden först efter att orsaken är åtgärdad
  • Kontrollera relaterade väntande koder
  • Verifiera batterispänning över 12,4 V innan du misstänker sensorer

Rekommenderade TOPDON-scannrar

Vanliga frågor

What does P2214 mean?
P2214 indicates nox sensor negative current control circuit low (bank 1 sensor 1). NOx negative current control low.
Can I diagnose P2214 with a basic code reader?
P2214 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 P2214?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with P2214?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.