P2206

NOx Sensor Heater Control Circuit Low Bank 1 Sensor 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine Light Is On
Increased fuel consumption
Reduced engine power
Increased emissions of harmful substances
Incorrect operation of the EGR system

Causes

Open or short circuit in the heater circuit
NOx sensor heating element malfunction
Problems with the relay or circuit fuse
Engine control unit malfunction
Poor contact in wiring connectors

How to Fix

Check the continuity of the NOx sensor heater circuit
Check the resistance of the heating element
Inspect connectors and wiring harness for damage
Check circuit fuses and relays
If necessary, replace the NOx sensor

Related codes

P2207 P2208 P2209