OBD Guide

P220D

NOx Sensor Supply Voltage Circuit Bank 2 Sensor 2

P220D is an OBD-II diagnostic trouble code meaning: NOx Sensor Supply Voltage Circuit Bank 2 Sensor 2. Common causes: open or short circuit in the nox sensor power supply circuit, poor contact in sensor connectors. Estimated repair cost: $56–222.

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

  1. Check the integrity of the NOx sensor wiring and connectors
  2. Check the sensor supply voltage
  3. Check the resistance and performance of the NOx sensor
  4. Replace NOx sensor if necessary
  5. Check and reflash the engine control unit

Related codes

Error P220D by Vehicle Brand

FAQ

What does the P220D code mean?

P220D is an OBD-II diagnostic trouble code that indicates: NOx Sensor Supply Voltage Circuit Bank 2 Sensor 2

What causes a P220D error code?

The most common causes of P220D include: 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.

How do I fix a P220D diagnostic trouble code?

To fix P220D: Check the integrity of the NOx sensor wiring and connectors. Check the sensor supply voltage. Check the resistance and performance of the NOx sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P220D?

Yes, but get it checked soon

How much does it cost to fix P220D?

The estimated repair cost for P220D is $56–222. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat