Engine-CodesGeneric – P2620

P2620 Code - Throttle Position Output Circuit/Open

Quick Answer

The P2620 code indicates a problem with the throttle position output circuit, specifically an open circuit. Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the throttle position output circuit, Corrosion on electrical connections. 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
P2620 indicates Throttle Position Output Circuit/Open.
Common causes
Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the throttle position output circuit, Corrosion on electrical connections.
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P2620 Description

The P2620 code indicates a problem with the throttle position output circuit, specifically an open circuit. The throttle position sensor (TPS) is responsible for monitoring the position of the throttle valve and sending this information to the engine control module (ECM). When the ECM detects an open circuit in the throttle position output circuit, it means that there is a disruption in the communication between the TPS and the ECM. This can lead to incorrect fuel injection, improper transmission shifting, and overall poor engine performance.

OBDII Code P2620 - Throttle Position Output Circuit/Open
P2620 Code - Throttle Position Output Circuit/Open

Common Causes of P2620

  1. Faulty throttle position sensor
  2. Damaged wiring or connectors in the throttle position output circuit
  3. Corrosion on electrical connections
  4. Malfunctioning engine control module (ECM)
  5. Poor electrical grounds

Symptoms of P2620

  1. Check Engine Light is illuminated
  2. Engine hesitates or stumbles during acceleration
  3. Rough idling or surging
  4. Reduced fuel efficiency
  5. Transmission shifting issues

How to Fix P2620

  1. Begin by using an OBD-II scanner to confirm the P2620 code and diagnose the exact cause of the issue.
  2. Inspect the throttle position sensor, wiring, and connectors for any visible damage or corrosion. Replace any damaged components.
  3. Test the throttle position sensor using a multimeter to ensure it is functioning properly.
  4. Check the engine control module for any faults and replace if necessary.
  5. Clear the error code from the ECM and test the vehicle to ensure the issue has been resolved.

Cost to Fix P2620

The typical repair costs for a P2620 code can vary depending on the specific cause of the issue. Parts such as a new throttle position sensor or engine control module can range from $50 to $200, while labor costs may range from $100 to $300. Overall, the total cost of repairs for this issue could be anywhere from $150 to $500. However, it is essential to note that actual costs may vary based on location, vehicle make and model, and labor rates at auto repair shops.

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Code P2620 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2620 Code

1. What are the common symptoms of OBDII code P2620 (Throttle Position Output Circuit/Open)?

- Common symptoms include reduced engine power, acceleration issues, and the illumination of the Check Engine Light.

2. What can cause OBDII code P2620 to trigger?

- The code P2620 is typically triggered by a faulty throttle position sensor, damaged wiring in the throttle position sensor circuit, or a poor connection in the throttle position sensor circuit.

3. How can I diagnose the cause of OBDII code P2620?

- Diagnosing the cause of code P2620 involves performing a thorough inspection of the throttle position sensor, checking the wiring for any damage or corrosion, and using a scan tool to monitor sensor readings.

4. What are the potential dangers of driving with OBDII code P2620 unresolved?

- Driving with code P2620 unresolved can lead to poor engine performance, reduced fuel efficiency, and potential safety hazards due to unpredictable throttle response.

5. Can I repair OBDII code P2620 on my own?

- While it is possible to repair code P2620 on your own if you have the necessary tools and knowledge, it is recommended to consult a professional mechanic for an accurate diagnosis and proper repair.

6. What are some basic repair tips for addressing OBDII code P2620?

- Basic repair tips include checking and cleaning the throttle position sensor connector, inspecting and repairing any damaged wiring, and ensuring proper sensor installation.

7. Does fixing OBDII code P2620 require replacing the throttle position sensor?

- In many cases, resolving code P2620 may involve replacing the throttle position sensor if it is found to be faulty or malfunctioning.

8. Is it necessary to clear the OBDII code P2620 after making repairs?

- Yes, it is recommended to clear the code P2620 after making repairs to reset the Check Engine Light and monitor if the issue has been successfully resolved.

9. Can extreme weather conditions affect OBDII code P2620?

- Yes, extreme weather conditions such as extreme heat or cold can potentially affect the performance of the throttle position sensor and trigger code P2620.

10. How much does it typically cost to repair OBDII code P2620 at a professional auto repair shop?

- The cost of repairing code P2620 can vary depending on the extent of the issue, but it generally ranges from $100 to $300 for parts and labor at a professional auto repair shop.

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