P0122 Infiniti 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 Infiniti 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 Infiniti 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 Infiniti?
- 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 Infiniti?
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 Infiniti 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 Infiniti Models
- P0122 2003 Infiniti G35 — Throttle Position Sensor/Switch '1' Circuit Low Input
- P0122 2004 Infiniti G35 — Throttle Position Sensor/Switch '1' Circuit Low Input
- P0122 2005 Infiniti G35 — Throttle Position Sensor/Switch '1' Circuit Low Input
- P0122 2006 Infiniti G35 — Throttle Position Sensor/Switch '1' Circuit Low Input
Frequently Asked Questions about P0122 Infiniti Code
1. What are the common symptoms of OBDII code P0122 in an Infiniti?
The common symptoms of OBDII code P0122 in an Infiniti include a decrease in engine performance, rough idling, stalling, and issues with acceleration.
2. What are the possible causes of the Throttle Position Sensor/Switch '1' Circuit Low Input code in an Infiniti?
The possible causes of OBDII code P0122 in an Infiniti include a faulty throttle position sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module (ECM).
3. How can I diagnose the cause of OBDII code P0122 in my Infiniti?
To diagnose the cause of OBDII code P0122 in your Infiniti, you can use a scan tool to check for the specific trouble code, inspect the throttle position sensor and its wiring for any visible damage, and test the sensor's voltage output.
4. Can a dirty throttle body cause OBDII code P0122 in an Infiniti?
Yes, a dirty throttle body can sometimes cause OBDII code P0122 in an Infiniti by affecting the proper functioning of the throttle position sensor. It is recommended to clean the throttle body as part of the troubleshooting process.
5. How do I repair OBDII code P0122 in my Infiniti?
To repair OBDII code P0122 in your Infiniti, you may need to replace the throttle position sensor if it is found to be faulty, repair any damaged wiring or connectors, and reset the trouble code using a scan tool after completing the repairs.
6. Is it safe to drive my Infiniti with OBDII code P0122?
It is not recommended to drive your Infiniti with OBDII code P0122, as it can lead to performance issues and potential safety concerns. It is best to address the underlying cause of the trouble code before driving the vehicle again.
7. Can I reset OBDII code P0122 in my Infiniti without fixing the issue?
While you can reset OBDII code P0122 in your Infiniti using a scan tool, it is important to address the underlying issue causing the trouble code. Ignoring the problem may lead to further damage and potential safety risks.
8. How much does it typically cost to repair OBDII code P0122 in an Infiniti?
The cost to repair OBDII code P0122 in an Infiniti can vary depending on the specific cause of the issue. Costs may include the price of a new throttle position sensor, labor costs for repairs, and any additional parts or components that need replacement.
9. Can a DIY enthusiast fix OBDII code P0122 in an Infiniti?
Depending on your level of mechanical expertise, a DIY enthusiast may be able to fix OBDII code P0122 in an Infiniti by following repair guides, watching tutorials, and using the necessary tools. However, it is recommended to consult a professional if unsure.
10. How often does OBDII code P0122 occur in Infiniti vehicles?
OBDII code P0122 related to the throttle position sensor/switch '1' circuit low input can occur in Infiniti vehicles due to various factors, including sensor wear, electrical issues, or ECM malfunctions. Proper maintenance and timely repairs can help prevent this code from appearing frequently.
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