P0122 2002 Nissan Altima Sedan Code - Throttle Position Sensor/Switch '1' Circuit Low Input
Quick Answer
The Throttle Pedal Position (TPP) 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 Nissan Altima Sedan indicates Throttle Position Sensor/Switch '1' 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 Nissan Altima Sedan Description
Idle position of the throttle valve is determined by the ECM 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 Nissan Altima Sedan?
- Faulty throttle position sensor.
- Throttle position sensor harness is open or shorted
- Throttle position sensor circuit poor electrical connection
- Faulty accelerator pedal position sensor
How to Fix the DTC P0122 2002 Nissan Altima Sedan?
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 Nissan Altima Sedan 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 Nissan Altima Sedan Code
1. What does the OBDII code P0122 on a 2002 Nissan Altima Sedan indicate?
The code P0122 indicates a Throttle Position Sensor/Switch '1' Circuit Low Input error on a 2002 Nissan Altima Sedan.
2. What are the common symptoms of a P0122 code on a 2002 Nissan Altima Sedan?
Common symptoms of a P0122 code include rough idling, poor acceleration, stalling, and potential issues with shifting gears.
3. What are the possible causes of a P0122 code on a 2002 Nissan Altima Sedan?
Possible causes of a P0122 code include a faulty throttle position sensor, damaged wiring or connectors in the throttle position sensor circuit, or a problem with the engine control module.
4. How can I diagnose a P0122 code on my 2002 Nissan Altima Sedan?
To diagnose a P0122 code, you can use an OBDII scanner to read the code and check the throttle position sensor's voltage using a multimeter. Inspect the sensor and its wiring for any visible damage.
5. Can I drive my 2002 Nissan Altima Sedan with a P0122 code?
It is not recommended to drive your vehicle with a P0122 code, as it can lead to poor performance and potential safety issues. It's best to address the problem promptly.
6. How can I repair a P0122 code on my 2002 Nissan Altima Sedan?
Repairing a P0122 code may involve replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, or reprogramming the engine control module.
7. Are there any DIY tips for fixing a P0122 code on a 2002 Nissan Altima Sedan?
If you're comfortable with automotive repairs, you may be able to replace the throttle position sensor yourself. Ensure you have the necessary tools and follow a detailed guide or tutorial.
8. How much does it cost to repair a P0122 code on a 2002 Nissan Altima Sedan?
The cost of repairing a P0122 code can vary depending on the exact cause of the issue and whether you do the repair yourself or take it to a professional mechanic. Costs may range from $100 to $300 or more.
9. Will a P0122 code on a 2002 Nissan Altima Sedan affect fuel efficiency?
Yes, a P0122 code can affect fuel efficiency because it can disrupt the proper functioning of the throttle position sensor, leading to inefficient fuel delivery and combustion.
10. How long does it typically take to repair a P0122 code on a 2002 Nissan Altima Sedan?
The repair time for a P0122 code can vary based on the specific cause of the issue and your repair skills. It may take anywhere from 1 to 3 hours for a professional mechanic to diagnose and fix the problem.
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