P0123 2012 Nissan Sentra Code - Throttle Position Sensor/Switch '1' Circuit High 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
- P0123 2012 Nissan Sentra indicates Throttle Position Sensor/Switch '1' Circuit High 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 P0123 2012 Nissan Sentra 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 P0123 2012 Nissan Sentra?
- Faulty throttle position sensor
- Throttle position sensor harness is open or shorted
- Throttle position sensor circuit poor electrical connection
How to Fix the DTC P0123 2012 Nissan Sentra?
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 P0123 2012 Nissan Sentra 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 P0123 2012 Nissan Sentra Code
1. What are the common symptoms of OBDII code P0123 in a 2012 Nissan Sentra?
- Common symptoms include issues with acceleration, poor fuel economy, lack of power, and potential stalling of the vehicle.
2. What does the OBDII code P0123 'Throttle Position Sensor/Switch '1' Circuit High Input' indicate in a 2012 Nissan Sentra?
- This code indicates that the Engine Control Module (ECM) has detected a high voltage signal from the throttle position sensor.
3. What are the possible causes of OBDII code P0123 in a 2012 Nissan Sentra?
- The potential causes include a faulty throttle position sensor, damaged wiring or connectors in the throttle position sensor circuit, or issues with the ECM.
4. How can I diagnose the OBDII code P0123 in my 2012 Nissan Sentra?
- Diagnosis involves using a scan tool to read the code, checking the throttle position sensor's voltage output, inspecting the wiring for any damage, and testing the sensor's connections for proper continuity.
5. Can I drive my 2012 Nissan Sentra with OBDII code P0123?
- It's not recommended to drive the vehicle with this code as it can lead to poor performance, potential stalling, and other safety issues.
6. How can I repair OBDII code P0123 on my 2012 Nissan Sentra?
- Repair options include replacing the throttle position sensor, repairing any damaged wiring or connectors, and clearing the code with a scan tool.
7. Will resetting the OBDII code P0123 on my 2012 Nissan Sentra fix the issue?
- Resetting the code may temporarily clear the check engine light, but it won't address the underlying problem causing the high input signal from the throttle position sensor.
8. How much does it cost to repair OBDII code P0123 on a 2012 Nissan Sentra?
- The cost of repair can vary depending on the exact cause of the code, but it typically ranges from $100 to $300 for parts and labor.
9. Can a DIY enthusiast fix OBDII code P0123 in a 2012 Nissan Sentra?
- Depending on the individual's skill level and access to tools, it is possible to address this code by replacing the throttle position sensor or repairing wiring issues.
10. How often does OBDII code P0123 occur in a 2012 Nissan Sentra?
- The occurrence of this code can vary, but it is relatively common in vehicles with throttle position sensor issues, especially as they age.
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