OBD Guide

P2219

NOx Sensor Heater Control Circuit Low Bank 2

P2219 is an OBD-II diagnostic trouble code meaning: NOx Sensor Heater Control Circuit Low Bank 2. Common causes: open or short circuit in nox sensor heating circuit, poor contact in the sensor connector. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Deterioration of engine performance
  • Increased fuel consumption
  • Power dips
  • Unstable idle

Causes

  • Open or short circuit in NOx sensor heating circuit
  • Poor contact in the sensor connector
  • Faulty NOx sensor heating element
  • Wiring harness damage
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check the continuity of the NOx sensor heating circuit
  2. Inspect the connectors and contacts of the sensor
  3. Check the resistance of the heating element
  4. Replace NOx sensor if necessary
  5. Check and replace wiring harness if necessary

Related codes

Error P2219 by Vehicle Brand

FAQ

What does the P2219 code mean?

P2219 is an OBD-II diagnostic trouble code that indicates: NOx Sensor Heater Control Circuit Low Bank 2

What causes a P2219 error code?

The most common causes of P2219 include: Open or short circuit in NOx sensor heating circuit; Poor contact in the sensor connector; Faulty NOx sensor heating element; Wiring harness damage.

How do I fix a P2219 diagnostic trouble code?

To fix P2219: Check the continuity of the NOx sensor heating circuit. Inspect the connectors and contacts of the sensor. Check the resistance of the heating element. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2219?

Yes, but get it checked soon

How much does it cost to fix P2219?

The estimated repair cost for P2219 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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