P0123 Jeep 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 Jeep 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.
Code P0123 Jeep Description
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.
What are the Possible Causes of the DTC P0123 Jeep?
- 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 Jeep?
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 Jeep 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.
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Information for Specific Jeep Models
- P0123 2002 Jeep Liberty — Throttle Position Sensor/Accelerator Position Pedal Circuit High Input
- P0123 2003 Jeep Liberty — Throttle Position Sensor/Accelerator Position Pedal Circuit High Input
- P0123 2004 Jeep Liberty — Throttle Position Sensor/Accelerator Position Pedal Circuit High Input
- P0123 2005 Jeep Liberty — Throttle Position Sensor/Accelerator Position Pedal Circuit High Input
- P0123 2006 Jeep Liberty — Throttle Position Sensor/Accelerator Position Pedal Circuit High Input
Frequently Asked Questions about P0123 Jeep Code
1. What are the common symptoms of OBDII code P0123 in a Jeep?
- Common symptoms include issues with acceleration, reduced engine power, stalling, rough idling, and the check engine light illuminating.
2. What causes the OBDII code P0123 in a Jeep?
- The code P0123 is typically triggered by a faulty throttle position sensor (TPS), damaged wiring or connectors in the TPS circuit, or issues with the accelerator pedal position sensor.
3. How can I diagnose the OBDII code P0123 in my Jeep?
- Diagnosis involves using an OBDII scanner to read the code, testing the throttle position sensor with a multimeter, checking for damaged wiring or connectors, and inspecting the accelerator pedal sensor.
4. What are some repair tips for fixing the OBDII code P0123 in a Jeep?
- Repair options include replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, and calibrating the TPS according to manufacturer specifications.
5. Can I drive my Jeep with the OBDII code P0123 present?
- It is not recommended to drive your Jeep with the code P0123 present, as it can lead to drivability issues, reduced performance, and potential safety concerns. It is best to address the issue promptly.
6. How much does it cost to repair the OBDII code P0123 in a Jeep?
- The cost of repairs can vary depending on the extent of the issue and whether you choose to replace the sensor yourself or have a professional mechanic do the work. Costs typically range from $100 to $300.
7. Is the OBDII code P0123 a serious problem in a Jeep?
- While the code P0123 may not always result in immediate breakdown, it can lead to drivability issues and affect the performance of your Jeep. It is advisable to address the problem promptly to prevent further damage.
8. Can a DIY enthusiast fix the OBDII code P0123 in a Jeep?
- Yes, a DIY enthusiast with some mechanical knowledge and the right tools can often replace the throttle position sensor or repair wiring issues associated with the code P0123 in a Jeep.
9. How long does it take to repair the OBDII code P0123 in a Jeep?
- The repair time can vary depending on your experience level and the extent of the issue. Replacing the throttle position sensor typically takes around 1-2 hours, while diagnosing and fixing wiring issues may take longer.
10. Will resetting the check engine light resolve the OBDII code P0123 in a Jeep?
- Resetting the check engine light may temporarily turn it off, but it will not fix the underlying issue causing the OBDII code P0123. It is essential to diagnose and repair the problem to prevent it from recurring.
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