P2620 Fault Code

Throttle Position Output Circuit/Open

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2620 fault code indicates a problem with the throttle position output circuit, which may be open or experiencing issues. This code is associated with the throttle position sensor (TPS) that monitors the position of the throttle plate in the engine. When the vehicle's engine control module (ECM) detects an erroneous signal from the TPS, it triggers this fault code.

What are the symptoms of the P2620 code?

Symptoms that may accompany the P2620 fault code include:

• Check Engine Light (CEL) illuminated on the dashboard
• Poor engine performance or lack of power
• Unresponsive or delayed throttle response
• Stalling or rough idling conditions
• Increased fuel consumption due to improper throttle position readings

What causes the P2620 code?

Common causes for the P2620 code include:

• Faulty throttle position sensor (TPS)
• Damaged wiring or connectors in the throttle position circuit
• Poor electrical connections or corrosion around the TPS connector
• Malfunctioning engine control module (ECM)
• Issues with the throttle body assembly such as carbon buildup or mechanical faults

How to fix P2620?

To resolve the P2620 fault code, consider the following steps:

1. Inspect the throttle position sensor and its wiring for any visible damage or disconnections.
2. Test the TPS using a multimeter to ensure it is functioning within the manufacturer's specifications.
3. Clean or replace any corroded connectors associated with the TPS circuit.
4. Check the throttle body for any obstructions or mechanical issues that may impede its function.
5. Clear the fault code from the ECM and perform a test drive to see if the code reappears, indicating a persistent issue.