AutoCodes – Nissan – P1223 2002 Nissan Altima Sedan

P1223 2002 Nissan Altima Sedan Code - Throttle Position Sensor 2 Circuit Low Input

Quick Answer

Electric Throttle Control Actuator consists of throttle control motor, throttle position sensor, etc. Common causes include Faulty Electric throttle control actuator (TP sensor 2), Electric throttle control actuator (TP sensor 2) harness is open or shorted, Electric throttle control actuator (TP 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
P1223 2002 Nissan Altima Sedan indicates Throttle Position Sensor 2 Circuit Low Input.
Common causes
Common causes include Faulty Electric throttle control actuator (TP sensor 2), Electric throttle control actuator (TP sensor 2) harness is open or shorted, Electric throttle control actuator (TP 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,703
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 15, 2019
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Code P1223 2002 Nissan Altima Sedan Description

Electric Throttle Control Actuator consists of throttle control motor, throttle position sensor, etc. The Throttle Position (TP) sensor responds to the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are a kind of potentiometers which transform the throttle valve position into output voltage, and emit the voltage signal to the Engine Control Module (ECM). In addition, these sensors detect the opening and closing speed of the throttle valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening angle properly in response to driving condition.
OBDII Code P1223 2002 Nissan Altima Sedan - Throttle Position Sensor 2 Circuit Low Input - AutoCodes.com
P1223 2002 Nissan Altima Sedan Code - Throttle Position Sensor 2 Circuit Low Input

What are the Possible Causes of the DTC P1223 2002 Nissan Altima Sedan?

  • Faulty Electric throttle control actuator (TP sensor 2)
  • Electric throttle control actuator (TP sensor 2) harness is open or shorted
  • Electric throttle control actuator (TP sensor 2) circuit poor electrical connection

How to Fix the DTC P1223 2002 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 P1223 2002 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 P1223 2002 Nissan Altima Sedan code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1223 2002 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P1223 in a 2002 Nissan Altima Sedan?

The common symptoms of OBDII code P1223 in a 2002 Nissan Altima Sedan include poor acceleration, rough idling, stalling, and decreased fuel efficiency.

2. What does the OBDII code P1223 on a 2002 Nissan Altima Sedan indicate?

OBDII code P1223 on a 2002 Nissan Altima Sedan indicates an issue with the Throttle Position Sensor 2 Circuit Low Input.

3. What are the possible causes of OBDII code P1223 in a 2002 Nissan Altima Sedan?

Possible causes of OBDII code P1223 in a 2002 Nissan Altima Sedan include a faulty throttle position sensor, damaged wiring or connectors, or a problem with the engine control module.

4. How can I diagnose the Throttle Position Sensor 2 Circuit Low Input issue in my 2002 Nissan Altima Sedan?

To diagnose the Throttle Position Sensor 2 Circuit Low Input issue in your 2002 Nissan Altima Sedan, you can use an OBDII scanner to read the trouble code, visually inspect the wiring and connectors, and test the throttle position sensor for proper voltage and resistance.

5. Can I drive my 2002 Nissan Altima Sedan with OBDII code P1223?

It is not recommended to drive your 2002 Nissan Altima Sedan with OBDII code P1223, as it can lead to further damage to the engine and affect the vehicle's performance.

6. How can I repair OBDII code P1223 in my 2002 Nissan Altima Sedan?

To repair OBDII code P1223 in your 2002 Nissan Altima Sedan, you may need to replace the throttle position sensor, repair any damaged wiring or connectors, or reprogram the engine control module.

7. Can a DIY enthusiast fix OBDII code P1223 in a 2002 Nissan Altima Sedan?

Depending on your skills and experience, a DIY enthusiast may be able to fix OBDII code P1223 in a 2002 Nissan Altima Sedan by following repair guides and using the necessary tools.

8. How much does it cost to repair OBDII code P1223 in a 2002 Nissan Altima Sedan?

The cost to repair OBDII code P1223 in a 2002 Nissan Altima Sedan can vary depending on the extent of the issue, parts needed, and labor rates. It is recommended to obtain quotes from local auto repair shops for an accurate estimate.

9. What is the role of the Throttle Position Sensor in a 2002 Nissan Altima Sedan?

The Throttle Position Sensor in a 2002 Nissan Altima Sedan monitors the position of the throttle pedal and sends signals to the engine control module to adjust the air-fuel mixture for optimal engine performance.

10. How often should the Throttle Position Sensor be replaced in a 2002 Nissan Altima Sedan?

The Throttle Position Sensor in a 2002 Nissan Altima Sedan should be replaced as needed or when symptoms of failure like those associated with OBDII code P1223 are present. Regular maintenance checks can help identify issues early.

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