The P0224: Throttle/Pedal Position Sensor/Switch B Circuit Intermittent refers to an issue where the signal from the throttle or pedal position sensor B is intermittent, meaning it comes and goes unpredictably. This can cause inconsistent throttle response and may lead to unsafe driving conditions.
The problem could be due to an intermittent connection in the circuit, a faulty sensor, issues with the wiring or connectors, or a malfunction in the Powertrain Control Module (PCM). When this code appears, it indicates that there is an unreliable signal from the sensor, which can affect the vehicle’s performance.
P0224 – Quick Overview
| Meaning | P0224: Throttle/Pedal Position Sensor/Switch B Circuit Intermittent |
| Is it serious? | Yes, this code is serious because it can cause erratic throttle behavior, which may lead to unsafe driving conditions. Immediate diagnosis and repair are recommended. |
| Possible causes | – Intermittent connection in the throttle/pedal position sensor B circuit – Faulty throttle/pedal position sensor B – Wiring or connector issues – Faulty PCM |
| How to diagnose? | – Inspect the throttle/pedal position sensor B for intermittent operation. – Check wiring and connectors for loose or corroded contacts. – Perform a wiggle test to identify intermittent faults. – Replace or repair any faulty components. |
P0224 Meaning
The P0224: Throttle/Pedal Position Sensor/Switch B Circuit Intermittent code means that the vehicle’s computer has detected an unreliable or fluctuating signal from the throttle or pedal position sensor B. This could be due to an intermittent connection, a faulty sensor, or issues with the wiring or connectors. When this code is triggered, it indicates that the signal from the sensor is not consistent, which can cause erratic throttle response and impact the vehicle’s drivability.
Step-by-step diagnostic guide
Follow the outlined procedure to diagnose this DTC by eliminating possible causes one by one.
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check if there are any other related codes present. These might provide additional clues about the problem. | OBD-II Scanner |
| Inspect Throttle/Pedal Position Sensor B | Inspect the sensor for signs of intermittent operation or failure. Pay close attention to any irregularities in its performance. | Multimeter, Manufacturer’s Specifications |
| Check Wiring and Connectors | Inspect the wiring and connectors associated with the sensor B for loose, corroded, or damaged contacts. Look for any signs of wear. | Flashlight, Multimeter |
| Perform a Wiggle Test | Gently wiggle the wiring and connectors while monitoring the sensor’s signal to identify any intermittent faults. | Multimeter, Circuit Tester |
| Inspect the PCM | If no issues are found with the sensor or wiring, inspect the Powertrain Control Module for faults or connectivity issues. Reprogram or replace if necessary. | OBD-II Scanner, Multimeter |
| Repair or Replace Faulty Components | If any faulty components are identified during the inspection, repair or replace them to restore proper function. | Replacement Parts, Basic Hand Tools |
| Clear the Code and Test Drive | After completing repairs, clear the P0224 code using the OBD-II scanner and take the vehicle for a test drive to ensure the issue is resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | After the test drive, re-scan the vehicle to ensure the P0224 code has not reappeared. If the code returns, further diagnosis may be required. | OBD-II Scanner |
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I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko