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P2213
System
Powertrain (Diesel Emissions)
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Full-system scanner (engine, ABS, SRS, transmission, service resets)

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

Understand P2213, common causes, and the right TOPDON scanner to diagnose it.

NOx sensor negative current control open.

Common symptoms

  • NOx readings invalid
  • SCR inactive

Typical causes

  • Failed sensor internal cell
  • Wiring open
  • SCR control module fault

What scanner do you need?

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

Use live data and freeze frame to confirm the fault before replacing parts. ABS, SRS, and network U-codes usually require a full-system scanner.

Diagnostic tips

  • Record freeze frame data when the code first sets
  • Clear the code only after fixing the root cause
  • Check for related pending codes that point to a common issue
  • Verify battery voltage is above 12.4V before chasing sensor codes

Recommended TOPDON scanners

Frequently asked questions

What does P2213 mean?
P2213 indicates nox sensor negative current control circuit open (bank 1 sensor 1). NOx sensor negative current control open.
Can I diagnose P2213 with a basic code reader?
P2213 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 P2213?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with P2213?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.