P2241

O2 Sensor Positive Current Control Circuit Low Bank 2 Sensor 1

Q: Is it safe to drive with P2241?

Yes for short trips, but fuel control and emissions are affected while it's active, so don't put off the repair.

Q: Can I just clear P2241?

You can, but a low current-control signal from a wiring or sensor fault will set it again.

Fuel & air metering (O2 sensor) Generic OBD-II Medium

What it means

P2241 means the positive pump-current control circuit for the bank 2, sensor 1 wide-band oxygen sensor is reading low. Wide-band air/fuel sensors use a small controlled current to measure the mixture precisely, so a low signal here leaves the ECM without a trustworthy reading and upsets fuel trim. It's usually a wiring fault (open or high resistance), a bad connection, or a failing sensor.

Medium

Can I keep driving? Drivable, but a faulty wide-band O2 sensor throws off fuel control, hurting economy and emissions and possibly causing rough running; repair soon.

Real-world scan data

Seen in

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on
Rough or uneven idle
Increased fuel consumption
Engine surge or hesitation

Common causes

Most likely first

Faulty wide-band (air/fuel ratio) oxygen sensor on bank 2, sensor 1Likely
Pump-current control wire open, shorted, or high-resistanceCommon
Poor connection or corrosion at the O2 sensor connectorCommon
Wiring damage where the harness routes near the exhaustLess often

How to diagnose & fix

Work through it in order

Read freeze-frame data and check for companion bank 2 O2 codes (P2240, P2242).
Inspect the bank 2 sensor 1 connector and wiring for corrosion, chafing, or a loose pin.
Measure the positive current-control circuit for opens or high resistance against spec.
Confirm the sensor's reference and ground circuits are intact.
Replace the wide-band O2 sensor if the circuit tests good but the reading stays low, then clear and re-test.

FAQ

Quick answers

Is it safe to drive with P2241?+

Yes for short trips, but fuel control and emissions are affected while it's active, so don't put off the repair.

Can I just clear P2241?+

You can, but a low current-control signal from a wiring or sensor fault will set it again.

Read & clear P2241 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX