OBD Guide
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B262B

Exhaust Gas Sensor

B262B is an OBD-II diagnostic trouble code meaning: Exhaust Gas Sensor. Common causes: open or short circuit in the sensor wiring harness, malfunction of the sensor itself. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Increased fuel consumption
  • Unstable engine operation
  • Check Engine Light Is On
  • Reduced engine power

Causes

  • Open or short circuit in the sensor wiring harness
  • Malfunction of the sensor itself
  • Problems with the sensor connector
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the integrity of the sensor wiring harness
  2. Check the sensor connector for damage or corrosion.
  3. Check resistance and sensor signal
  4. Replace sensor if necessary
  5. Clear error memory and check if error is returned

Related codes

P0130P0131P0132P0133

FAQ

What does the B262B code mean?

B262B is an OBD-II diagnostic trouble code that indicates: Exhaust Gas Sensor

What causes a B262B error code?

The most common causes of B262B include: Open or short circuit in the sensor wiring harness; Malfunction of the sensor itself; Problems with the sensor connector; Engine control unit (ECU) malfunction.

How do I fix a B262B diagnostic trouble code?

To fix B262B: Check the integrity of the sensor wiring harness. Check the sensor connector for damage or corrosion.. Check resistance and sensor signal. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B262B?

Limited driving only, diagnose soon

How much does it cost to fix B262B?

The estimated repair cost for B262B is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat