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Engine-Codes – Ford – P0122 2003 Ford F150

P0122 2003 Ford F150 Code - Throttle Position Sensor Circuit Low Input

Quick Answer

The P0122 code for a 2003 Ford F150 indicates a problem with the throttle position sensor (TPS) circuit, specifically a low input signal. Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the TPS circuit, Dirty throttle body. 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
P0122 2003 Ford F150 indicates Throttle Position Sensor Circuit Low Input .
Common causes
Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the TPS circuit, Dirty throttle body.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P0122 2003 Ford F150 Description

The P0122 code for a 2003 Ford F150 indicates a problem with the throttle position sensor (TPS) circuit, specifically a low input signal. The throttle position sensor is a crucial component of the electronic throttle control system, as it monitors the position of the throttle valve and sends this information to the engine control module (ECM). The ECM uses this data to adjust fuel delivery and ignition timing, ultimately affecting the engine's performance.

OBDII Code P0122 2003 Ford F150 - Throttle Position Sensor Circuit Low Input
P0122 2003 Ford F150 Code - Throttle Position Sensor Circuit Low Input

Common Causes of P0122 2003 Ford F150

  1. Faulty throttle position sensor
  2. Damaged wiring or connectors in the TPS circuit
  3. Dirty throttle body
  4. Issues with the engine control module (ECM)
  5. Corrosion or moisture in the sensor connections

Symptoms of P0122 2003 Ford F150

  1. Poor acceleration or hesitation when pressing the gas pedal
  2. Rough idling or stalling when at a stop
  3. Decreased fuel efficiency
  4. Difficulty shifting in automatic transmissions
  5. Illumination of the Check Engine Light

How to Fix P0122 2003 Ford F150

  1. Begin by scanning the vehicle's computer to confirm the P0122 code and identify any other related codes.
  2. Inspect the throttle position sensor and its wiring for any visible damage or corrosion.
  3. Test the TPS sensor using a multimeter to check for proper voltage output.
  4. Clean the throttle body to ensure smooth operation and clear any obstructions.
  5. If the TPS sensor is faulty, replace it with a new one and recalibrate it according to manufacturer specifications.

Cost to Fix P0122 2003 Ford F150

The cost of repairing a throttle position sensor circuit low input issue on a 2003 Ford F150 can vary depending on the specific cause of the problem. In general, the price of a new throttle position sensor ranges from $50 to $150, while the labor cost for diagnosis and replacement can range from $100 to $300. Therefore, the total repair cost could amount to approximately $150 to $450, excluding any additional parts or services that may be required. It's recommended to consult with a trusted mechanic or repair shop for a more accurate estimate based on the specific circumstances of the vehicle.

What does this mean?

Tech Notes for P0122 2003 Ford F150

The TP sensor circuit is monitored by the PCM for a low TP rotation angle (or voltage) input through the comprehensive component monitor (CCM). If during key ON engine OFF or key ON engine running the TP rotation angle (or voltage) changes below a minimum calibrated limit, the test fails.



Fault exhibits a symptom of limited power. A TP PID (TP VPID) reading less than 3.42% (0.17 volt) in key ON engine OFF, continuous memory or key ON engine running indicates a hard fault.

When is the Code Detected?

The Throttle Position Sensor (TPS) signal 1 circuit has reported an open or low voltage

Need more information about the P0122 2003 Ford F150 code?

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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 P0122 2003 Ford F150 Code

1. What are the common symptoms of OBDII code P0122 on a 2003 Ford F150?

The common symptoms of code P0122 on a 2003 Ford F150 include poor acceleration, rough idle, stalling, and possibly an illuminated Check Engine Light.

2. What does the OBDII code P0122 indicate on a 2003 Ford F150?

OBDII code P0122 for a 2003 Ford F150 indicates a Throttle Position Sensor Circuit Low Input error.

3. What are the possible causes of OBDII code P0122 on a 2003 Ford F150?

Possible causes of code P0122 on a 2003 Ford F150 include a faulty throttle position sensor, damaged wiring or connectors in the TPS circuit, or a problem with the engine control module.

4. How can I diagnose the Throttle Position Sensor Circuit Low Input issue on my 2003 Ford F150?

To diagnose the P0122 code on a 2003 Ford F150, you can use an OBDII scanner to read the code and check the throttle position sensor's voltage output using a multimeter.

5. Can I drive my 2003 Ford F150 with OBDII code P0122?

It is not recommended to drive your 2003 Ford F150 with OBDII code P0122, as it can lead to poor engine performance and potential safety hazards.

6. How do I repair the Throttle Position Sensor Circuit Low Input problem on my 2003 Ford F150?

To repair the P0122 code on a 2003 Ford F150, you may need to replace the throttle position sensor, repair damaged wiring or connectors, or reset the engine control module.

7. Will resetting the Check Engine Light resolve OBDII code P0122 on a 2003 Ford F150?

Simply resetting the Check Engine Light will not resolve the underlying issue causing code P0122 on a 2003 Ford F150. Proper diagnosis and repair are necessary.

8. How much does it cost to fix OBDII code P0122 on a 2003 Ford F150?

The cost to fix OBDII code P0122 on a 2003 Ford F150 can vary depending on the root cause, but it may involve parts and labor expenses for sensor replacement or wiring repairs.

9. Can a DIY enthusiast fix OBDII code P0122 on a 2003 Ford F150?

A DIY enthusiast with the necessary tools and knowledge may be able to fix OBDII code P0122 on a 2003 Ford F150 by following repair guides and being cautious with electrical components.

10. Is it important to address OBDII code P0122 promptly on a 2003 Ford F150?

Yes, it is important to address OBDII code P0122 promptly on a 2003 Ford F150 to prevent further engine damage, improve performance, and ensure safe driving conditions.

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