P0224 code meaning
Throttle/Pedal Position Sensor/Switch B Circuit Intermittent
Powertrain system Generic code P02xx codes Check engine light
What P0224 means
With electronic throttle control the throttle body carries two position sensors, A and B, usually with opposite or offset signals, and the engine module compares them (correlation code P2135). GM and Ford give the pedal sensors their own codes (P2120 ff), so B is in practice the second throttle sensor. P0224 reports brief dropouts or jumps of sensor B that do not last long enough for the steady fault codes. No manufacturer using exactly this code was found: GM counts intermittent faults within P0222/P0223, and Ford's digital sensors report intermittent faults as P0124 for sensor A and P0229 for sensor C – after more than 0.4 s, while a steady fault needs over 4 s. Depending on frequency the result is jerking or brief limp mode.
P0224 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0224
- Occasional jerking or power dips
- Brief limp mode
- Check engine light (sometimes only intermittently)
Common causes of P0224
- Most likelyLoose contact or corroded connector at the throttle body
- Most likelyWorn spot on the sensor track
- PossibleWire breaking from engine movement or vibration
- Less likelyEngine module or ground connection
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Throttle position sensor bElectronic throttle bodySensor wiring
What each part of P0224 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 2 | Area: fuel and air metering (injector circuit). |
| 24 | The exact fault in that area. |
What to do next
- Note P0224 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0224
What does P0224 mean?
P0224 means "Throttle/Pedal Position Sensor/Switch B Circuit Intermittent". With electronic throttle control the throttle body carries two position sensors, A and B, usually with opposite or offset signals, and the engine module compares them (correlation code P2135). It is a generic code, so it means the same on every make.
Is it safe to drive with P0224?
Drive gently and only to a workshop. With P0224 the car can go into limp mode (reduced power) to protect itself.
Will P0224 fail an emissions test?
Yes, it can. P0224 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0224 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P0224 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.