P0220 Mercedes-Benz Code - Throttle/Pedal Position Sensor/Switch 'B' Circuit Malfunction
Quick Answer
Electric Throttle Control Actuator consists of throttle control motor, throttle position sensor (TPS), etc. Common causes include Throttle Position Sensor (TPS) harness is open or shorted, Throttle Position Sensor (TPS) circuit poor electrical connection, Faulty Throttle Position Sensor (TPS). 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
- P0220 Mercedes-Benz indicates Throttle/Pedal Position Sensor/Switch 'B' Circuit Malfunction.
- Common causes
- Common causes include Throttle Position Sensor (TPS) harness is open or shorted, Throttle Position Sensor (TPS) circuit poor electrical connection, Faulty Throttle Position Sensor (TPS).
- 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 P0220 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 P0220 Mercedes-Benz?
- Throttle Position Sensor (TPS) harness is open or shorted
- Throttle Position Sensor (TPS) circuit poor electrical connection
- Faulty Throttle Position Sensor (TPS)
- Fault Electric Throttle Control Actuator (or Throttle Body Motor)
- Accelerator Pedal Position Sensor (APP)
How to Fix the DTC P0220 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 P0220 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 P0220 Mercedes-Benz Code
1. What are the common symptoms of OBDII code P0220 in a Mercedes-Benz related to the Throttle/Pedal Position Sensor/Switch 'B' Circuit Malfunction?
- Common symptoms include loss of power, engine stalling, rough idling, and issues with acceleration response.
2. What are the possible causes of OBDII code P0220 in a Mercedes-Benz?
- The code P0220 can be triggered by a faulty throttle position sensor, damaged wiring or connectors, or issues with the electronic throttle control system.
3. How can I diagnose the Throttle/Pedal Position Sensor/Switch 'B' Circuit Malfunction in my Mercedes-Benz?
- Use a diagnostic scanner to retrieve the specific OBDII code, inspect the throttle position sensor and related wiring for damage, and perform a voltage test to check the sensor's functionality.
4. Can driving with the OBDII code P0220 in a Mercedes-Benz cause further damage?
- Continuing to drive with this code can potentially lead to poor engine performance, decreased fuel efficiency, and even further damage to the throttle control system.
5. How can I repair the Throttle/Pedal Position Sensor/Switch 'B' Circuit Malfunction in my Mercedes-Benz?
- Repair options include replacing the faulty throttle position sensor, repairing damaged wiring or connectors, or resetting the electronic throttle control system.
6. Is it safe to continue driving my Mercedes-Benz with the throttle position sensor issue?
- It is not recommended to drive your vehicle with a faulty throttle position sensor, as it can affect the engine's performance and potentially lead to unsafe driving conditions.
7. Can I reset the OBDII code P0220 in my Mercedes-Benz without fixing the underlying issue?
- While you can clear the code using a diagnostic scanner, it is crucial to address the root cause of the problem to prevent the code from reoccurring and causing further issues.
8. How much does it typically cost to repair the Throttle/Pedal Position Sensor/Switch 'B' Circuit Malfunction in a Mercedes-Benz?
- The cost of repair can vary depending on the extent of the damage and the specific components that need replacement, but it typically ranges from $200 to $500.
9. Are there any preventive maintenance tips to avoid encountering the OBDII code P0220 in a Mercedes-Benz?
- Regularly inspecting and cleaning the throttle position sensor, as well as performing routine maintenance on the electronic throttle control system, can help prevent issues that trigger this code.
10. Can a DIY enthusiast fix the Throttle/Pedal Position Sensor/Switch 'B' Circuit Malfunction in a Mercedes-Benz?
- While some experienced DIYers may be able to handle the repair, it is recommended to consult a professional mechanic, especially when dealing with sensitive electronic components like the throttle position sensor.
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