OBD-II Error Code P0229: How to Fix It

Q: What does error code P0229 mean?

P0229 means the throttle position sensor 'C' circuit is intermittent, indicating an unreliable signal from the sensor to the ECM.

Q: Can I drive with error code P0229?

Driving with this code is not recommended as it can cause unpredictable acceleration or stalling. It's best to fix it promptly.

Q: How do I test a throttle position sensor?

Use a multimeter to measure resistance and voltage while manually moving the throttle plate. Compare readings to your vehicle's specifications.

Q: Is replacing a throttle position sensor easy?

It's a medium difficulty task. You'll need basic tools and a multimeter. Follow vehicle-specific instructions.

Q: Can a bad throttle position sensor cause transmission problems?

Yes, an erratic TPS signal can affect transmission shifting, causing harsh or delayed shifts.

Abstract

Error code P0229 indicates that the throttle position sensor 'C' is sending an intermittent signal to the engine control module (ECM). This can cause unpredictable throttle response, poor acceleration, or stalling. The issue is often related to a faulty sensor, wiring problems, or a loose connection.