P2218

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

1. Check the continuity of the NOx sensor heating circuit
2. Check the power and ground of the heating circuit
3. Check the resistance of the sensor heating element
4. Inspect connectors and contacts for corrosion
5. If necessary, replace NOx sensor bank 2

Related codes

Error P2218 by Vehicle Brand