P220D

NOx Sensor Supply Voltage Circuit Bank 2 Sensor 2

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–222 (est.)

Symptoms

Check Engine Light Is On
Reduced engine power
Increased fuel consumption
Possible problems starting the engine
Unstable engine idling

Causes

Open or short circuit in the NOx sensor power supply circuit
Poor contact in sensor connectors
NOx sensor malfunction
Problems with the engine control unit
Corroded contacts or damaged wiring

How to Fix

Check the integrity of the NOx sensor wiring and connectors
Check the sensor supply voltage
Check the resistance and performance of the NOx sensor
Replace NOx sensor if necessary
Check and reflash the engine control unit

Related codes

P220E P220F P2210