OBD Guide

P2208

NOx Sensor Heater Sense Circuit Bank 1 Sensor 1

P2208 is an OBD-II diagnostic trouble code meaning: NOx Sensor Heater Sense Circuit Bank 1 Sensor 1. Common causes: open or short circuit in the nox sensor heater circuit, malfunction of the nox sensor itself. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine idling
  • Dips during acceleration

Causes

  • Open or short circuit in the NOx sensor heater circuit
  • Malfunction of the NOx sensor itself
  • Wiring harness damage
  • Poor contact in the sensor connector
  • Engine control unit malfunction

How to Fix

  1. Check the continuity of the NOx sensor heater circuit
  2. Inspect connectors and wiring harness for damage
  3. Check sensor heater resistance
  4. Replace NOx sensor if necessary
  5. Reset the error code and check if it returns

Related codes

Error P2208 by Vehicle Brand

FAQ

What does the P2208 code mean?

P2208 is an OBD-II diagnostic trouble code that indicates: NOx Sensor Heater Sense Circuit Bank 1 Sensor 1

What causes a P2208 error code?

The most common causes of P2208 include: Open or short circuit in the NOx sensor heater circuit; Malfunction of the NOx sensor itself; Wiring harness damage; Poor contact in the sensor connector.

How do I fix a P2208 diagnostic trouble code?

To fix P2208: Check the continuity of the NOx sensor heater circuit. Inspect connectors and wiring harness for damage. Check sensor heater resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2208?

Yes, but get it checked soon

How much does it cost to fix P2208?

The estimated repair cost for P2208 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat