OBD Guide

P241A

O2 Sensor Signals Swapped Bank 1 Sensor 1/Bank 1 Sensor 2

P241A is an OBD-II diagnostic trouble code meaning: O2 Sensor Signals Swapped Bank 1 Sensor 1/Bank 1 Sensor 2. Common causes: incorrect oxygen sensor wiring, replacing sensors. Estimated repair cost: $22–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–56 (est.)

Symptoms

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

Causes

  • Incorrect oxygen sensor wiring
  • Replacing sensors
  • Wiring damage
  • Malfunction of oxygen sensors
  • Problems with the ECU

How to Fix

  1. Check that the oxygen sensors are connected correctly
  2. Inspect the wiring for damage
  3. Replace sensors if they were installed incorrectly
  4. Check the functionality of the oxygen sensors
  5. Scan the ECU for other errors

Related codes

Error P241A by Vehicle Brand

FAQ

What does the P241A code mean?

P241A is an OBD-II diagnostic trouble code that indicates: O2 Sensor Signals Swapped Bank 1 Sensor 1/Bank 1 Sensor 2

What causes a P241A error code?

The most common causes of P241A include: Incorrect oxygen sensor wiring; Replacing sensors; Wiring damage; Malfunction of oxygen sensors.

How do I fix a P241A diagnostic trouble code?

To fix P241A: Check that the oxygen sensors are connected correctly. Inspect the wiring for damage. Replace sensors if they were installed incorrectly. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P241A?

Yes, but get it checked soon

How much does it cost to fix P241A?

The estimated repair cost for P241A is $22–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat