P0122 Jeep Code - Throttle Position Sensor/Accelerator Position Pedal Circuit Low 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
- P0122 Jeep indicates Throttle Position Sensor/Accelerator Position Pedal Circuit Low 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 P0122 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 P0122 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 P0122 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 P0122 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
- P0122 2002 Jeep Liberty — Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input
- P0122 2003 Jeep Liberty — Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input
- P0122 2004 Jeep Liberty — Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input
- P0122 2005 Jeep Liberty — Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input
- P0122 2006 Jeep Liberty — Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input
Frequently Asked Questions about P0122 Jeep Code
1. What are the common symptoms of OBDII code P0122 in a Jeep?
- Common symptoms include issues with acceleration, poor engine performance, stalling, and the activation of the Check Engine Light.
2. What could cause the Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input code P0122 in a Jeep?
- Possible causes include a faulty throttle position sensor, damaged wiring or connectors in the throttle position sensor circuit, or a problem with the accelerator pedal position sensor.
3. How can I diagnose the OBDII code P0122 related to the Throttle Position Sensor in my Jeep?
- You can diagnose the code by using an OBDII scanner to retrieve the fault code, visually inspecting the throttle position sensor and its wiring, and performing voltage tests on the sensor.
4. Can a dirty throttle body cause the P0122 code in a Jeep?
- While a dirty throttle body can affect throttle response, it is unlikely to directly cause the P0122 code. However, it is still recommended to clean the throttle body as part of regular maintenance.
5. Is it safe to continue driving my Jeep with the P0122 code?
- It is not recommended to drive your Jeep with the P0122 code, as it can lead to poor engine performance, stalling, and potentially unsafe driving conditions. It is best to address the issue promptly.
6. How can I repair the Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input code P0122 in my Jeep?
- Repair options include replacing the throttle position sensor, repairing any damaged wiring or connectors, and addressing issues with the accelerator pedal position sensor if necessary.
7. Can I reset the Check Engine Light after fixing the P0122 code in my Jeep?
- Yes, you can reset the Check Engine Light using an OBDII scanner after fixing the underlying issue causing the P0122 code. This will clear the code and turn off the light.
8. Are there any DIY tips for troubleshooting the P0122 code in a Jeep?
- DIY tips include checking for loose or damaged wiring, ensuring proper sensor connections, and testing the throttle position sensor using a multimeter for voltage readings.
9. Will a P0122 code affect fuel efficiency in my Jeep?
- Yes, the P0122 code can impact fuel efficiency due to the improper functioning of the throttle position sensor, which affects the engine's performance and fuel delivery.
10. How much does it cost to fix the Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input code P0122 in a Jeep?
- The cost of fixing the P0122 code can vary depending on the exact cause of the issue, but it may involve expenses for parts and labor ranging from $100 to $300 or more.
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