OBD Guide

P22BF

O2 Sensor Negative Current Control Circuit/Open Bank 2 Sensor 2

P22BF is an OBD-II diagnostic trouble code meaning: O2 Sensor Negative Current Control Circuit/Open Bank 2 Sensor 2. Common causes: open oxygen sensor control circuit, poor contact in the sensor connector. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine light comes on
  • Increased fuel consumption
  • Reduced engine power
  • Unstable engine operation at idle
  • Increased level of harmful emissions

Causes

  • Open oxygen sensor control circuit
  • Poor contact in the sensor connector
  • Malfunction of the oxygen sensor itself
  • Wiring harness damage
  • Problems with the engine control unit

How to Fix

  1. Check the integrity of the sensor control circuit
  2. Inspect the connectors and contacts of the sensor
  3. Check the resistance of the oxygen sensor
  4. If necessary, replace the oxygen sensor
  5. Check the operation of the engine control unit

Related codes

Error P22BF by Vehicle Brand

FAQ

What does the P22BF code mean?

P22BF is an OBD-II diagnostic trouble code that indicates: O2 Sensor Negative Current Control Circuit/Open Bank 2 Sensor 2

What causes a P22BF error code?

The most common causes of P22BF include: Open oxygen sensor control circuit; Poor contact in the sensor connector; Malfunction of the oxygen sensor itself; Wiring harness damage.

How do I fix a P22BF diagnostic trouble code?

To fix P22BF: Check the integrity of the sensor control circuit. Inspect the connectors and contacts of the sensor. Check the resistance of the oxygen sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P22BF?

Yes, but get it checked soon

How much does it cost to fix P22BF?

The estimated repair cost for P22BF is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat