P0122 2002 Jeep Liberty 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 2002 Jeep Liberty 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 2002 Jeep Liberty 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 2002 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 P0122 2002 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 P0122 2002 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.
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Frequently Asked Questions about P0122 2002 Jeep Liberty Code
1. What are the common symptoms of OBDII code P0122 on a 2002 Jeep Liberty?
The common symptoms of OBDII code P0122 in a 2002 Jeep Liberty include reduced engine power, stalling, hesitation or surging during acceleration, and the vehicle going into "limp mode."
2. What could cause the Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input code in a 2002 Jeep Liberty?
Common causes of OBDII code P0122 in a 2002 Jeep Liberty include a faulty throttle position sensor, damaged wiring or connectors in the throttle position sensor circuit, or issues with the accelerator pedal position sensor.
3. How can I diagnose the Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input code in my 2002 Jeep Liberty?
To diagnose OBDII code P0122 in a 2002 Jeep Liberty, you can use an OBDII scanner to retrieve the code, visually inspect the throttle position sensor and accelerator pedal position sensor wiring, and perform a voltage test on these sensors.
4. Is it safe to continue driving my 2002 Jeep Liberty with OBDII code P0122?
It is not recommended to drive your 2002 Jeep Liberty with OBDII code P0122 as it can cause performance issues and potentially lead to further damage to the engine or other components. It's best to address the issue promptly.
5. Can I repair OBDII code P0122 in my 2002 Jeep Liberty myself?
Depending on your level of automotive knowledge, you may be able to repair OBDII code P0122 in your 2002 Jeep Liberty yourself. Common DIY repairs include replacing the throttle position sensor, checking and repairing damaged wiring, and cleaning connectors.
6. Will resetting the OBDII code P0122 in my 2002 Jeep Liberty make it go away permanently?
Resetting OBDII code P0122 in your 2002 Jeep Liberty may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to return. It's important to diagnose and fix the root cause of the code.
7. How much does it cost to repair OBDII code P0122 in a 2002 Jeep Liberty at a mechanic?
The cost to repair OBDII code P0122 in a 2002 Jeep Liberty at a mechanic can vary depending on the exact cause of the issue and labor rates in your area. On average, you can expect to pay between $100 to $300 for parts and labor.
8. Can a bad throttle position sensor cause other OBDII codes to appear in a 2002 Jeep Liberty?
Yes, a bad throttle position sensor can cause other OBDII codes to appear in a 2002 Jeep Liberty. Issues with the throttle position sensor can lead to a variety of performance-related problems that may trigger additional codes related to engine performance or emissions.
9. What should I do if I suspect the throttle position sensor is causing OBDII code P0122 in my 2002 Jeep Liberty?
If you suspect the throttle position sensor is causing OBDII code P0122 in your 2002 Jeep Liberty, it's best to have the sensor inspected and tested by a qualified mechanic. They can confirm the diagnosis and recommend the necessary repairs.
10. Are there any preventative measures I can take to avoid OBDII code P0122 in my 2002 Jeep Liberty in the future?
To prevent OBDII code P0122 in your 2002 Jeep Liberty, you can regularly inspect and maintain the throttle position sensor and related wiring, avoid harsh driving habits, and address any performance issues promptly to prevent further damage.
Discuss the causes and fixes for P0122 2002 Jeep Liberty OBDII Code
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Yes the trottle sensor with a new one and idle speed motor but the engine light is on again.
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