OBD Guide

P22AE

O2 Sensor Reference Voltage Circuit/Open Bank 1 Sensor 2

P22AE is an OBD-II diagnostic trouble code meaning: O2 Sensor Reference Voltage Circuit/Open Bank 1 Sensor 2. Common causes: open or short circuit in the oxygen sensor circuit, poor contact in the sensor connector. 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 Is On
  • Increased fuel consumption
  • Reduced engine power
  • Unstable engine idling
  • Increase in harmful emissions

Causes

  • Open or short circuit in the oxygen sensor circuit
  • Poor contact in the sensor connector
  • Malfunction of the oxygen sensor itself
  • Wiring harness damage
  • Problems with the engine ECU

How to Fix

  1. Visual inspection of sensor wiring and connectors
  2. Checking the continuity of the sensor circuit with a multimeter
  3. Checking the reference voltage at the sensor
  4. Replacing the oxygen sensor if necessary
  5. Resetting the fault code and checking system operation

Related codes

Error P22AE by Vehicle Brand

FAQ

What does the P22AE code mean?

P22AE is an OBD-II diagnostic trouble code that indicates: O2 Sensor Reference Voltage Circuit/Open Bank 1 Sensor 2

What causes a P22AE error code?

The most common causes of P22AE include: Open or short circuit in the oxygen sensor circuit; Poor contact in the sensor connector; Malfunction of the oxygen sensor itself; Wiring harness damage.

How do I fix a P22AE diagnostic trouble code?

To fix P22AE: Visual inspection of sensor wiring and connectors. Checking the continuity of the sensor circuit with a multimeter. Checking the reference voltage at the sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P22AE?

Yes, but get it checked soon

How much does it cost to fix P22AE?

The estimated repair cost for P22AE is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat