AutoCodes – Jeep – P0123 2006 Jeep Liberty

P0123 2006 Jeep Liberty Code - Throttle Position Sensor/Accelerator Position Pedal Circuit High Input

Quick Answer

The Throttle Position Sensor (TPS) responds to the accelerator pedal movement. Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor 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
P0123 2006 Jeep Liberty indicates Throttle Position Sensor/Accelerator Position Pedal Circuit High Input.
Common causes
Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 6,652
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0123 2006 Jeep Liberty Description

The Throttle Position Sensor (TPS) responds to the accelerator pedal movement. This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Powertrain Control Module (PCM). In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the PCM.
Idle position of the throttle valve is determined by the PCM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.
OBDII Code P0123 2006 Jeep Liberty - Throttle Position Sensor/Accelerator Position Pedal Circuit High Input - AutoCodes.com
P0123 2006 Jeep Liberty Code - Throttle Position Sensor/Accelerator Position Pedal Circuit High Input

What are the Possible Causes of the DTC P0123 2006 Jeep Liberty?

  • Faulty throttle position sensor
  • Throttle position sensor harness is open or shorted
  • Throttle position sensor circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0123 2006 Jeep Liberty?

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 P0123 2006 Jeep Liberty 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 P0123 2006 Jeep Liberty code?

Need more information on how to fix the P0123 2006 Jeep Liberty code? Get Access to Factory Service Manuals

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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 P0123 2006 Jeep Liberty Code

1. What are the common symptoms of OBDII code P0123 in a 2006 Jeep Liberty?

- Common symptoms include issues with acceleration, lack of power, stalling, and possibly the vehicle going into "limp mode."

2. What are the possible causes of the Throttle Position Sensor/Accelerator Position Pedal Circuit High Input code in a 2006 Jeep Liberty?

- The code P0123 can be triggered by a faulty throttle position sensor, a damaged accelerator pedal position sensor, wiring issues, or a malfunctioning electronic control module (ECM).

3. How can I diagnose the P0123 code in my 2006 Jeep Liberty?

- Diagnosing the code involves using a diagnostic scanner to read the code, checking the throttle position sensor and accelerator pedal position sensor for proper operation, and inspecting the wiring for any damage or loose connections.

4. Can I still drive my 2006 Jeep Liberty with the P0123 code present?

- It is not recommended to drive the vehicle with the P0123 code present, as it can lead to poor performance, stalling, or other potential safety hazards.

5. How can I repair the Throttle Position Sensor/Accelerator Position Pedal Circuit High Input issue in my 2006 Jeep Liberty?

- Repair options include replacing the faulty throttle position sensor, accelerator pedal position sensor, or repairing any damaged wiring. In some cases, reprogramming the ECM may also be necessary.

6. Is it safe to reset the OBDII code P0123 in my 2006 Jeep Liberty and see if it comes back?

- While you can clear the code to see if it returns, it is important to address the underlying issue causing the code to prevent potential damage to the vehicle and ensure safe operation.

7. How much does it typically cost to fix the P0123 code in a 2006 Jeep Liberty?

- The cost of repair can vary depending on the specific issue causing the code, but it may range from $100 to $300 for parts and labor.

8. Can a DIY enthusiast fix the P0123 code in a 2006 Jeep Liberty?

- Depending on your skill level and access to tools, you may be able to replace the throttle position sensor or accelerator pedal position sensor yourself. However, proper diagnosis and repair of wiring issues or ECM problems may require professional help.

9. Will the P0123 code cause my 2006 Jeep Liberty to fail an emissions test?

- Yes, the P0123 code can cause your vehicle to fail an emissions test, as it indicates a problem with the throttle position sensor or accelerator pedal position sensor, which affects engine performance and emissions.

10. How can I prevent the OBDII code P0123 from recurring in my 2006 Jeep Liberty?

- To prevent the code from recurring, it is important to address the root cause of the issue by ensuring proper installation of new sensors, using high-quality components, and regularly inspecting and maintaining the throttle system.

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