P2218
NOx Sensor Heater Control Circuit/Open Bank 2
P2218 is an OBD-II diagnostic trouble code meaning: NOx Sensor Heater Control Circuit/Open Bank 2. Common causes: nox sensor heating circuit open, bank 2 nox sensor malfunction. Estimated repair cost: $44–278.
Symptoms
- The Check Engine light is on on the dashboard
- Deterioration of vehicle dynamics
- Increased fuel consumption
- The engine may go into emergency mode
- Increased level of harmful emissions
Causes
- NOx sensor heating circuit open
- Bank 2 NOx sensor malfunction
- Problems with the sensor heating relay
- Short circuit in control circuit
- Oxidation of contacts in connectors
How to Fix
- Check the continuity of the NOx sensor heating circuit
- Check the power and ground of the heating circuit
- Check the resistance of the sensor heating element
- Inspect connectors and contacts for corrosion
- If necessary, replace NOx sensor bank 2
Related codes
Error P2218 by Vehicle Brand
FAQ
What does the P2218 code mean?
P2218 is an OBD-II diagnostic trouble code that indicates: NOx Sensor Heater Control Circuit/Open Bank 2
What causes a P2218 error code?
The most common causes of P2218 include: NOx sensor heating circuit open; Bank 2 NOx sensor malfunction; Problems with the sensor heating relay; Short circuit in control circuit.
How do I fix a P2218 diagnostic trouble code?
To fix P2218: Check the continuity of the NOx sensor heating circuit. Check the power and ground of the heating circuit. Check the resistance of the sensor heating element. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2218?
Yes, but get it checked soon
How much does it cost to fix P2218?
The estimated repair cost for P2218 is $44–278. Actual cost depends on your vehicle, location, and labor rates.
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