P2622 Fault Code

Throttle Position Output Circuit High

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

The P2622 fault code indicates a problem with the throttle position output circuit being high. This typically means that the signal sent from the throttle position sensor (TPS) to the engine control module (ECM) is higher than expected, which can affect engine performance and drivability.

• The throttle position sensor measures the position of the throttle plate.
• The sensor transmits voltage signals to the ECM, which adjusts the air-fuel mixture accordingly.
• A high output signal suggests a short circuit, malfunctioning sensor, or a wiring issue.

What are the symptoms of the P2622 code?

When the P2622 code is present, the following symptoms may be observed:

• Illuminated check engine light.
• Poor engine performance, including stalling or hesitation during acceleration.
• Increased fuel consumption.
• Unstable idling or erratic throttle response.
• Reduced engine power output.

What causes the P2622 code?

Several factors can lead to a P2622 fault code:

• Faulty throttle position sensor.
• Wiring issues, such as shorts or corrosion in the connector.
• Malfunctions within the engine control module.
• Mechanical problems with the throttle body.
• A vacuum leak affecting pressure in the intake system.

How to fix P2622?

To resolve the P2622 fault code, follow these steps:

• Inspect the throttle position sensor and its wiring for any signs of damage.
• Replace the throttle position sensor if it is faulty.
• Repair any damaged wiring or connectors that could be causing a short circuit.
• Check the throttle body for any mechanical issues, such as sticking or debris.
• Clear the fault codes and test drive the vehicle to ensure the problem has been resolved.