P0224

Throttle/Pedal Position Sensor/Switch B Circuit Intermittent

Q: Is it safe to drive with P0224?

Short trips are usually fine, but because the fault is intermittent the car can drop into reduced-power mode without warning. Get it fixed before relying on it in fast traffic.

Q: Can I just clear P0224?

You can, but an intermittent connection or failing sensor will set it again. Find and fix the loose connector or wiring first.

Throttle & pedal position Generic OBD-II High

What it means

P0224 means the ECM is seeing an intermittent, out-of-range signal from the second throttle or accelerator-pedal position sensor ('B' circuit). Modern drive-by-wire systems use two sensors to cross-check pedal input, so a dropout here usually triggers hesitation, surging, or a temporary drop into reduced-power mode rather than leaving the car undrivable.

High

Can I keep driving? Drivable but treat with caution — an intermittent signal can trigger sudden reduced-power/limp mode, so avoid heavy traffic or highway merges until it's fixed.

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, sometimes on and off
Surging, hesitation, or unstable idle
Intermittent reduced power or limp mode
Erratic throttle response

Common causes

Most likely first

Loose, corroded, or backed-out connector at the throttle body or accelerator pedal sensorLikely
Chafed or intermittently shorting wiring in the sensor 'B' circuitCommon
Failing throttle/pedal position sensor 'B' elementCommon
Poor sensor ground or reference-voltage feedLess often
Faulty ECM (least likely)Less often

How to diagnose & fix

Work through it in order

Read freeze-frame data and wiggle-test the pedal/throttle connector while watching the live sensor 'B' voltage for dropouts.
Inspect and reseat the connector; clean corrosion and repair any chafed wiring.
Check the sensor's 5V reference and ground for intermittent loss.
If the signal still drops with wiring confirmed good, replace the throttle/pedal position sensor.
Clear the code and road-test to confirm the intermittent is gone.

FAQ

Quick answers

Is it safe to drive with P0224?+

Short trips are usually fine, but because the fault is intermittent the car can drop into reduced-power mode without warning. Get it fixed before relying on it in fast traffic.

Can I just clear P0224?+

You can, but an intermittent connection or failing sensor will set it again. Find and fix the loose connector or wiring first.

Read & clear P0224 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