OBD Guide

P22B3

O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 2

P22B3 is an OBD-II diagnostic trouble code meaning: O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 2. Common causes: open or short circuit in the sensor wiring harness, oxygen sensor malfunction. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine light comes on
  • Increased fuel consumption
  • Reduced engine power
  • Unstable engine idling

Causes

  • Open or short circuit in the sensor wiring harness
  • Oxygen sensor malfunction
  • Connection problems or connector corrosion
  • Engine control module (ECU) malfunction

How to Fix

  1. Check the integrity of the sensor wiring harness
  2. Check connections and connectors for corrosion
  3. Replace the oxygen sensor if necessary
  4. Check and, if necessary, replace the engine control module

Related codes

Error P22B3 by Vehicle Brand

FAQ

What does the P22B3 code mean?

P22B3 is an OBD-II diagnostic trouble code that indicates: O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 2

What causes a P22B3 error code?

The most common causes of P22B3 include: Open or short circuit in the sensor wiring harness; Oxygen sensor malfunction; Connection problems or connector corrosion; Engine control module (ECU) malfunction.

How do I fix a P22B3 diagnostic trouble code?

To fix P22B3: Check the integrity of the sensor wiring harness. Check connections and connectors for corrosion. Replace the oxygen sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P22B3?

Yes, but get it checked soon

How much does it cost to fix P22B3?

The estimated repair cost for P22B3 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat