P0122 2008 Nissan Altima Sedan Code - Throttle Position Sensor/Switch 'A' Circuit Low Input
Quick Answer
The Throttle Pedal Position (TPP) responds to the accelerator pedal movement. Common causes include Faulty throttle position sensor 2, Throttle position sensor 2 harness is open or shorted, Throttle position sensor 2 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 2008 Nissan Altima Sedan indicates Throttle Position Sensor/Switch 'A' Circuit Low Input.
- Common causes
- Common causes include Faulty throttle position sensor 2, Throttle position sensor 2 harness is open or shorted, Throttle position sensor 2 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 2008 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 2008 Nissan Altima Sedan?
- Faulty throttle position sensor 2
- Throttle position sensor 2 harness is open or shorted
- Throttle position sensor 2 circuit poor electrical connection
How to Fix the DTC P0122 2008 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 2008 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 2008 Nissan Altima Sedan Code
1. What are the common symptoms of OBDII code P0122 (Throttle Position Sensor/Switch 'A' Circuit Low Input) in a 2008 Nissan Altima Sedan?
- Common symptoms include poor acceleration, stalling, rough idling, and possible difficulty shifting gears.
2. What are the possible causes of OBDII code P0122 in a 2008 Nissan Altima Sedan?
- The code P0122 is typically triggered by a faulty throttle position sensor, damaged wiring or connectors, or a problem with the engine control module (ECM).
3. How can I diagnose the cause of OBDII code P0122 in my 2008 Nissan Altima Sedan?
- You can use a multimeter to test the throttle position sensor's voltage output, check the wiring for any damage or loose connections, and scan the ECM for any related error codes.
4. Can I still drive my 2008 Nissan Altima Sedan with OBDII code P0122 active?
- It is not recommended to drive the vehicle with an active P0122 code, as it can lead to further damage and potentially unsafe driving conditions.
5. How can I repair OBDII code P0122 in my 2008 Nissan Altima Sedan?
- Repair options include replacing the throttle position sensor, repairing damaged wiring or connectors, or reprogramming the ECM if necessary.
6. Is it possible to reset OBDII code P0122 in a 2008 Nissan Altima Sedan without repairing the issue?
- While you can clear the code with an OBDII scanner, it is important to address the underlying problem causing the code to prevent it from reoccurring.
7. How much does it typically cost to repair OBDII code P0122 in a 2008 Nissan Altima Sedan?
- The cost of repairing P0122 can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.
8. Are there any preventive measures to avoid OBDII code P0122 in a 2008 Nissan Altima Sedan?
- Regular maintenance, such as keeping the throttle body clean, inspecting wiring for damage, and addressing any engine performance issues promptly, can help prevent the occurrence of P0122.
9. Will OBDII code P0122 cause my 2008 Nissan Altima Sedan to fail an emissions test?
- Yes, an active P0122 code can cause your vehicle to fail an emissions test due to its impact on engine performance and emissions control systems.
10. How long does it typically take to repair OBDII code P0122 in a 2008 Nissan Altima Sedan?
- The repair time for P0122 can vary depending on the exact cause of the issue and the availability of parts, but it may take a few hours to a full day to complete the repair.
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