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P2216
System
Powertrain (Diesel Emissions)
Benötigter Scanner
Full-system scanner (engine, ABS, SRS, transmission, service resets)

NOx Sensor Positive Current Control Circuit Open (Bank 2 Sensor 1)

Understand P2216, common causes, and the right TOPDON scanner to diagnose it.

Bank 2 NOx positive current circuit open.

Häufige Symptome

  • SCR bank 2 fault
  • Warning lamps

Typische Ursachen

  • Failed sensor
  • Open wire
  • Unplugged connector after exhaust service

Welchen Scanner brauchen Sie?

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

Nutzen Sie Live-Daten und Freeze Frame, bevor Sie Teile tauschen. ABS-, SRS- und U-Codes erfordern meist einen Vollsystem-Scanner.

Diagnose-Tipps

  • Freeze Frame erfassen, wenn der Code erstmals gesetzt wird
  • Code erst nach Behebung der Ursache löschen
  • Auf verwandte pending codes prüfen
  • Batteriespannung über 12,4 V prüfen, bevor Sie Sensoren verdächtigen

Empfohlene TOPDON Scanner

Häufig gestellte Fragen

What does P2216 mean?
P2216 indicates nox sensor positive current control circuit open (bank 2 sensor 1). Bank 2 NOx positive current circuit open.
Can I diagnose P2216 with a basic code reader?
P2216 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 P2216?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with P2216?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.