P0123 2004 Nissan Altima Sedan 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 2004 Nissan Altima Sedan 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 2004 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 P0123 2004 Nissan Altima Sedan?
- 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 2004 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 P0123 2004 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.
Need more information about the P0123 2004 Nissan Altima Sedan code?
Need more information on how to fix the P0123 2004 Nissan Altima Sedan code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0123 2004 Nissan Altima Sedan code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0123 2004 Nissan Altima Sedan Code
1. What are the common symptoms of OBDII code P0123 on a 2004 Nissan Altima Sedan?
- Common symptoms include issues with acceleration, poor engine performance, stalling, and possibly a check engine light illuminated on the dashboard.
2. What does the OBDII code P0123 indicate in a 2004 Nissan Altima Sedan?
- The code P0123 indicates a high input signal from the throttle position sensor/switch '1' circuit in the vehicle.
3. What are the possible causes of OBDII code P0123 on a 2004 Nissan Altima Sedan?
- Possible causes include a faulty throttle position sensor, damaged wiring or connectors in the throttle position sensor circuit, or a problem with the engine control module (ECM).
4. How can I diagnose the OBDII code P0123 on my 2004 Nissan Altima Sedan?
- You can diagnose the code P0123 by using an OBDII scanner to retrieve the code, checking the throttle position sensor for proper operation, inspecting the wiring and connectors for any damage, and testing the ECM if necessary.
5. Can I drive my 2004 Nissan Altima Sedan with OBDII code P0123?
- It is not recommended to drive the vehicle with code P0123 as it can lead to poor engine performance and potentially dangerous driving conditions. It is best to address the issue promptly.
6. How can I repair OBDII code P0123 on a 2004 Nissan Altima Sedan?
- To repair code P0123, you may need to replace the throttle position sensor, repair any damaged wiring or connectors, or reprogram the engine control module (ECM) if necessary.
7. Are there any DIY tips for fixing OBDII code P0123 on a 2004 Nissan Altima Sedan?
- While some tasks like checking wiring and connectors can be done by DIY enthusiasts, it is recommended to have a qualified mechanic diagnose and repair the issue due to the complexity of the throttle position sensor system.
8. How much does it cost to fix OBDII code P0123 on a 2004 Nissan Altima Sedan?
- The cost of fixing code P0123 can vary depending on the root cause of the issue, replacement parts needed, and labor costs. It is advisable to get estimates from local auto repair shops for an accurate cost assessment.
9. Will resetting the OBDII code P0123 on my 2004 Nissan Altima Sedan make it go away permanently?
- Resetting the code may temporarily turn off the check engine light, but if the underlying issue causing code P0123 is not addressed, the code is likely to reappear. It is important to diagnose and fix the root cause of the problem.
10. How often does OBDII code P0123 occur in 2004 Nissan Altima Sedans?
- Code P0123 related to the throttle position sensor '1' circuit high input can occur in 2004 Nissan Altima Sedans due to sensor wear, wiring issues, or ECM malfunctions, but its frequency can vary depending on the vehicle's maintenance history and driving conditions.
Discuss the causes and fixes for P0123 2004 Nissan Altima Sedan OBDII Code
Code P0123 2004 Nissan Altima Sedan comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
