OBD Codes List

Diagnostic reference · P0224

P0224

Throttle/Pedal Position Sensor/Switch B Circuit Intermittent

System
Injector circuits (P code)
Lamp
Check Engine Light
Category
Powertrain - Fuel/Air Metering

What it means

P0224 means Throttle/Pedal Position Sensor/Switch B Circuit Intermittent.

Where it lives

For P0224, the circuit described runs through the sensor. The description of P0224 reports a fault at the sensor.

Check these first

  • A loose throttle or pedal position sensor B connector
  • Chafed wiring on the sensor B circuit
  • A failing sensor B element
  • A sticky throttle body or pedal assembly
  • A poor ground for sensor B

What to do next

  1. Wiggle test the sensor B harness on live data
  2. Inspect the sensor B wiring for chafing
  3. Clean the throttle body and pedal assembly
  4. Replace sensor B if the signal drops out
  5. Clean the connector and ground
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.