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P2620 OBD2: Throttle Position Output Circuit/Open

P2620 OBD2: Throttle Position Output Circuit/Open

What Does the P2620 Code Mean?

The P2620 code signifies that the Throttle Position Sensor/Switch is reporting an open circuit or faulty output. This sensor is vital for informing the PCM about the position of the throttle, which directly affects engine performance.

What Causes the P2620 Code?

Several factors can contribute to the P2620 code, including:

  • Throttle Position Sensor/Switch malfunction
  • Wiring issues between the sensor and the PCM
  • Powertrain Control Module (PCM) failure
  • Throttle control motor failure

What Are the Symptoms of the P2620 Code?

Drivers may experience several symptoms when the P2620 code is present, which may include:

  • Decreased engine performance
  • Vehicle entering limp home mode, limiting speed to 20 mph or less
  • Increased fuel consumption

How Serious Is the P2620 Code?

The P2620 code is considered urgent. If not addressed promptly, it can lead to severe engine damage or pose safety risks to the driver and passengers due to impaired vehicle performance.

How to Diagnose the P2620 Code

Diagnosing the P2620 code typically involves the following steps:

  1. Use an OBD-II scanner to confirm the P2620 code and check for any additional codes.
  2. Inspect the wiring and connectors related to the Throttle Position Sensor for damage or corrosion.
  3. Test the Throttle Position Sensor’s output with a multimeter to ensure it’s functioning correctly.
  4. If necessary, check the PCM for any faults or errors.

Common Repairs for the P2620 Code

Repairs may vary based on the cause of the P2620 code, but common solutions include:

  • Replacing the Throttle Position Sensor
  • Repairing or replacing damaged wiring or connectors
  • Replacing the Powertrain Control Module (if found faulty)

How Much Does It Cost to Fix the P2620 Code?

The cost to fix the P2620 code can vary significantly depending on the underlying issue. Replacing a Throttle Position Sensor may cost between $100 to $300, whereas PCM replacement can run upwards of $1,000, including labor.

Can I Fix the P2620 Code Myself?

If you have experience with automotive repairs, you may be able to address the P2620 code yourself. However, it is essential to properly diagnose the problem before attempting repairs to avoid unnecessary expenses. If you are unsure, it is advisable to consult a professional mechanic.

About JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

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