P2225

NOx Sensor Heater Sense Circuit Intermittent Bank 2

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine Light Is On
Deterioration of engine performance
Increased fuel consumption
Power dips
Unstable idle speed

Causes

Open or short circuit in NOx sensor heating circuit
Poor contact in sensor connectors
NOx sensor malfunction
Wiring Harness Problems
Engine control unit malfunction

How to Fix

Check the continuity of the NOx sensor heating circuit
Inspect the sensor connectors and contacts for corrosion or damage.
Check the resistance of the sensor heating element
If necessary, replace the NOx sensor
Check and update ECU software

Related codes

P2226 P2227 P2228