P0229 Mercedes-Benz Code - Throttle/Pedal Position Sensor/Switch 'C' Circuit Intermittent
Quick Answer
Electric Throttle Control Actuator consists of throttle control motor, throttle position sensor (TPS), etc. Common causes include Faulty Throttle Position Sensor (TPS), Throttle Position Sensor (TPS) harness is open or shorted, Throttle Position Sensor (TPS) circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0229 Mercedes-Benz indicates Throttle/Pedal Position Sensor/Switch 'C' Circuit Intermittent.
- Common causes
- Common causes include Faulty Throttle Position Sensor (TPS), Throttle Position Sensor (TPS) harness is open or shorted, Throttle Position Sensor (TPS) circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0229 Mercedes-Benz Description
The throttle position sensor has the two sensors. These sensors are a kind of potentiometers which transform the throttle valve position into output voltage, and emit the voltage signal to the Engine Control Module (ECM) In addition, these sensors detect the opening and closing speed of the throttle valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening angle properly in response to driving condition.
What are the Possible Causes of the DTC P0229 Mercedes-Benz?
- Faulty Throttle Position Sensor (TPS)
- Throttle Position Sensor (TPS) harness is open or shorted
- Throttle Position Sensor (TPS) circuit poor electrical connection
How to Fix the DTC P0229 Mercedes-Benz?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0229 Mercedes-Benz code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0229 Mercedes-Benz Code
1. What are the common symptoms of OBDII code P0229 in a Mercedes-Benz related to the Throttle/Pedal Position Sensor/Switch 'C' Circuit Intermittent?
Symptoms may include a lack of power or response when pressing the accelerator, erratic throttle response, and potentially the vehicle going into limp mode.
2. What are some possible causes of OBDII code P0229 in a Mercedes-Benz?
Potential causes include a faulty throttle position sensor, issues with the pedal position sensor or wiring, a malfunctioning throttle body, or a problem with the electronic control module.
3. How can I diagnose the Throttle/Pedal Position Sensor/Switch 'C' Circuit Intermittent issue in my Mercedes-Benz?
Diagnosis typically involves using an OBDII scanner to retrieve the specific error code, checking the wiring and connectors for any damage or looseness, and testing the sensors and components involved in the throttle and pedal position system.
4. Can I continue driving my Mercedes-Benz with OBDII code P0229 present?
It is not recommended to drive the vehicle with this code present, as it can lead to further damage or safety hazards. It's best to address the issue promptly to avoid potential complications.
5. What are some repair tips for fixing OBDII code P0229 in a Mercedes-Benz?
Repair options may include replacing the throttle position sensor, pedal position sensor, or throttle body if found to be faulty. Ensuring proper wiring connections and addressing any underlying issues should also be part of the repair process.
6. Is it possible to reset OBDII code P0229 in a Mercedes-Benz without fixing the underlying issue?
While clearing the error code temporarily may be possible, it is not a permanent solution. The underlying problem causing the code needs to be addressed to prevent it from reoccurring.
7. Can a DIY enthusiast fix OBDII code P0229 in a Mercedes-Benz, or is professional help recommended?
Depending on your skill level and experience with automotive repairs, you may be able to address the issue yourself. However, seeking professional help, especially for complex electronic components, is often recommended to ensure proper diagnosis and repair.
8. How much does it typically cost to repair OBDII code P0229 in a Mercedes-Benz?
The cost of repair can vary depending on the specific cause of the code, the parts needed, and whether professional labor is required. It's advisable to obtain quotes from reputable mechanics or service centers for an accurate estimate.
9. Are there any preventive measures to avoid encountering OBDII code P0229 in a Mercedes-Benz?
Regular maintenance, such as checking and cleaning sensors, inspecting wiring for damage, and addressing any performance issues promptly, can help prevent issues that may trigger this error code.
10. How urgent is it to address OBDII code P0229 in a Mercedes-Benz once it appears?
It is recommended to address the issue as soon as possible to prevent further damage, potential safety risks, or the vehicle going into limp mode, which can affect drivability.
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