AutoCodes – Dodge – P2621 Dodge

P2621 Dodge Code - Throttle Position Output Circuit Low

Quick Answer

The Engine Control Module (ECM) monitors the Throttle Position circuit signal. Common causes include Faulty Throttle Position Sensor/Switch, Throttle Position Sensor/Switch harness is open or shorted, Throttle Position Sensor/Switch circuit poor electrical connection. 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: P2621 Dodge indicates Throttle Position Output Circuit Low.
Common causes: Common causes include Faulty Throttle Position Sensor/Switch, Throttle Position Sensor/Switch harness is open or shorted, Throttle Position Sensor/Switch circuit poor electrical connection.
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.

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Code Popularity 3,606

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2621 Dodge Description

The Engine Control Module (ECM) monitors the Throttle Position circuit signal. The ECM sets the OBDII Code when the Throttle Position circuit signal is out of factory specifications.

OBDII Code P2621 Dodge - Throttle Position Output Circuit Low - AutoCodes.com — P2621 Dodge Code - Throttle Position Output Circuit Low

What does this mean?

What are the Possible Causes of the DTC P2621 Dodge?

Faulty Throttle Position Sensor/Switch
Throttle Position Sensor/Switch harness is open or shorted
Throttle Position Sensor/Switch circuit poor electrical connection

How to Fix the DTC P2621 Dodge?

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 P2621 Dodge 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.

Need more information about the P2621 Dodge code?

Need more information on how to fix the P2621 Dodge code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2621 Dodge code diagnosed by a professional: Find a repair shop in your area

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 P2621 Dodge Code

1. What does the OBDII code P2621 mean on a Dodge vehicle?

P2621 indicates a problem with the Throttle Position Output Circuit Low, meaning the throttle position sensor (TPS) is sending a voltage signal lower than the expected range to the powertrain control module (PCM).

2. What are the common symptoms of a P2621 code in a Dodge?

Symptoms may include poor engine performance, rough idling, hesitation during acceleration, reduced fuel efficiency, and potentially the Check Engine Light being illuminated.

3. What causes the P2621 code to trigger in a Dodge?

Common causes include a faulty throttle position sensor, damaged or corroded wiring or connectors in the TPS circuit, or a malfunctioning PCM.

4. Can a dirty throttle body cause a P2621 code?

Yes, a dirty or clogged throttle body can interfere with the proper operation of the throttle position sensor and lead to a P2621 code.

5. How do you diagnose the P2621 code in a Dodge vehicle?

Diagnosis involves using an OBDII scanner to confirm the code, inspecting the TPS and its wiring for damage, and using a multimeter to test the TPS voltage and continuity.

6. Is it safe to drive a Dodge with a P2621 code?

Driving with this code is not recommended as it can lead to poor engine performance, safety concerns, and potential damage to other engine components.

7. How do you fix the P2621 code in a Dodge?

Repairs may include replacing the throttle position sensor, repairing or replacing damaged wiring, cleaning the throttle body, or reprogramming or replacing the PCM if needed.

8. What tools are needed to fix the P2621 code?

Tools may include an OBDII scanner, a multimeter, basic hand tools, and throttle body cleaner depending on the specific issue.

9. Can a failing PCM cause a P2621 code in a Dodge?

While rare, a failing PCM can cause this code if it is unable to properly interpret the throttle position sensor's signal.

10. How much does it cost to fix a P2621 code on a Dodge vehicle?

The repair cost varies but typically ranges from $100 to $300 for a throttle position sensor replacement, with additional costs if wiring repairs or PCM replacement are needed.