P0123 2005 Nissan Maxima 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 2005 Nissan Maxima 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 2005 Nissan Maxima 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 2005 Nissan Maxima?
- 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 2005 Nissan Maxima?
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 2005 Nissan Maxima 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 2005 Nissan Maxima Code
1. What does OBDII code P0123 mean for my 2005 Nissan Maxima?
The code P0123 indicates a Throttle Position Sensor/Switch '1' Circuit High Input error on your vehicle.
2. What are the common symptoms of a P0123 OBDII code in a 2005 Nissan Maxima?
Common symptoms include poor acceleration, lack of power, rough idling, and potential issues with the vehicle's transmission shifting.
3. What are the possible causes of a P0123 code in a 2005 Nissan Maxima?
The code can be triggered by a faulty throttle position sensor, damaged wiring or connectors related to the sensor, or issues with the engine control module (ECM).
4. How can I diagnose a P0123 code in my 2005 Nissan Maxima?
To diagnose the issue, you can use an OBDII scanner to read the code, visually inspect the throttle position sensor and its wiring, and perform voltage tests on the sensor.
5. Can I still drive my 2005 Nissan Maxima with a P0123 code?
It is not recommended to drive the vehicle with a P0123 code as it can lead to poor performance and potential further damage to the engine or transmission.
6. How do I repair a P0123 code on my 2005 Nissan Maxima?
The repair typically involves replacing the throttle position sensor, repairing any damaged wiring, or resetting the engine control module (ECM) if needed.
7. Will resetting the OBDII code P0123 on my 2005 Nissan Maxima make it go away permanently?
Resetting the code may temporarily turn off the check engine light, but if the underlying issue causing the P0123 code is not resolved, the code is likely to reappear.
8. Can a DIY enthusiast fix a P0123 code in a 2005 Nissan Maxima?
Depending on your skill level and access to tools, some DIY enthusiasts may be able to replace the throttle position sensor or repair wiring related to the P0123 code.
9. How much does it cost to repair a P0123 code in a 2005 Nissan Maxima?
The cost of repairing a P0123 code can vary depending on the specific issue, but it typically ranges from $100 to $300 for parts and labor.
10. Is it necessary to have a mechanic clear the P0123 code after repairing my 2005 Nissan Maxima?
While it's not mandatory, having a mechanic clear the code ensures that the repair was successful and helps to prevent any potential issues down the road.
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