P0228 Mercedes-Benz Code - Throttle/Pedal Position Sensor/Switch 'C' Circuit High Input
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
- P0228 Mercedes-Benz indicates Throttle/Pedal Position Sensor/Switch 'C' Circuit High Input.
- 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 P0228 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 P0228 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 P0228 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 P0228 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 P0228 Mercedes-Benz Code
1. What are the common symptoms of OBDII code P0228 in a Mercedes-Benz?
- Common symptoms include reduced engine power, hesitation during acceleration, and the vehicle going into limp mode.
2. What causes the Throttle/Pedal Position Sensor/Switch 'C' Circuit High Input code in a Mercedes-Benz?
- This code is typically triggered by a faulty throttle position sensor, damaged wiring harness, or a problem with the throttle body.
3. How can I diagnose the cause of OBDII code P0228 in my Mercedes-Benz?
- You can use a diagnostic scan tool to read the code and then perform a visual inspection of the throttle position sensor and its wiring for any visible damage.
4. Can a dirty throttle body cause code P0228 in a Mercedes-Benz?
- Yes, a dirty or carbon-fouled throttle body can disrupt the sensor's readings and lead to a high input signal, triggering the P0228 code.
5. What is the recommended repair for OBDII code P0228 in a Mercedes-Benz?
- The recommended repair is to replace the throttle position sensor and address any wiring issues. Cleaning or replacing the throttle body may also be necessary.
6. Are there any DIY tips for fixing code P0228 in a Mercedes-Benz?
- DIY enthusiasts can attempt to clean the throttle body and sensor connectors, but for proper diagnosis and repair, it's recommended to seek professional help.
7. Can driving with OBDII code P0228 in a Mercedes-Benz cause further damage?
- Continuing to drive with this code may result in poor engine performance, reduced fuel efficiency, and potential damage to other engine components over time.
8. How much does it typically cost to repair OBDII code P0228 in a Mercedes-Benz?
- The cost of repairing this code can vary depending on the extent of the damage and the specific parts that need to be replaced, but it can range from $200 to $500.
9. Is it safe to drive my Mercedes-Benz with the Throttle/Pedal Position Sensor/Switch 'C' Circuit High Input code?
- It is not recommended to drive the vehicle with this code present, as it can lead to unsafe driving conditions and potential engine issues.
10. Can a Mercedes-Benz dealership fix OBDII code P0228?
- Yes, a Mercedes-Benz dealership or a qualified mechanic with expertise in Mercedes-Benz vehicles can diagnose and repair OBDII code P0228 effectively.
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