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P0113 2002 Nissan Altima Sedan Code - Intake Air Temperature Sensor Circuit High

Quick Answer

The P0113 diagnostic trouble code (DTC) for a 2002 Nissan Altima Sedan indicates a problem with the Intake Air Temperature (IAT) sensor circuit registering a high voltage. Common causes include Faulty Intake Air Temperature (IAT) sensor, Damaged or corroded wiring/connectors in the IAT sensor circuit, ECM software issue. 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
P0113 2002 Nissan Altima Sedan indicates Intake Air Temperature Sensor Circuit High.
Common causes
Common causes include Faulty Intake Air Temperature (IAT) sensor, Damaged or corroded wiring/connectors in the IAT sensor circuit, ECM software issue.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P0113 2002 Nissan Altima Sedan Description

The P0113 diagnostic trouble code (DTC) for a 2002 Nissan Altima Sedan indicates a problem with the Intake Air Temperature (IAT) sensor circuit registering a high voltage. The IAT sensor is responsible for measuring the temperature of the air entering the engine. This information is crucial for the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion. When the ECM detects a high voltage signal from the IAT sensor, it triggers the P0113 code.

OBDII Code P0113 2002 Nissan Altima Sedan - Intake Air Temperature Sensor Circuit High
P0113 2002 Nissan Altima Sedan Code - Intake Air Temperature Sensor Circuit High

Common Causes of P0113 2002 Nissan Altima Sedan

  1. Faulty Intake Air Temperature (IAT) sensor.
  2. Damaged or corroded wiring/connectors in the IAT sensor circuit.
  3. ECM software issue.
  4. Intake air leaks near the sensor.
  5. Extreme temperature fluctuations affecting sensor readings.

Symptoms of P0113 2002 Nissan Altima Sedan

  1. Check Engine Light illuminated on the dashboard.
  2. Reduced fuel efficiency.
  3. Engine running rough or misfiring.
  4. Stalling or hesitation during acceleration.
  5. Rough idling.

How to Fix P0113 2002 Nissan Altima Sedan

  1. Begin by visually inspecting the wiring and connectors in the IAT sensor circuit for any damage or corrosion. Repair or replace as necessary.
  2. Test the IAT sensor using a multimeter to ensure it is functioning correctly. Replace the sensor if it is faulty.
  3. Clear the DTC with a diagnostic scanner and monitor the IAT sensor readings to verify the repair.
  4. If the issue persists, further diagnostic testing may be required to check for ECM software issues or other underlying problems.
  5. Once the repair is complete, road test the vehicle to ensure the symptoms have been resolved.

Cost to Fix P0113 2002 Nissan Altima Sedan

The typical repair costs for addressing a P0113 code on a 2002 Nissan Altima Sedan can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. Factors such as location, vehicle make and model, and engine type can also influence repair costs. For a more accurate estimate, it is recommended to consult with local auto repair shops.

What does this mean?

Tech Notes for P0113 2002 Nissan Altima Sedan

Since the Intake Air Temperature (IAT) Sensor is par of the Mass Air Flow (MAF) Sensor, start by cleaning the MAF. If the problem persists the MAF may need to be replaced.

When is the Code Detected?

- An excessively high voltage from the sensor is sent to ECM.

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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 P0113 2002 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P0113 in a 2002 Nissan Altima Sedan?

- Common symptoms include poor fuel economy, rough idling, engine stalling, and a decrease in overall engine performance.

2. What does the OBDII code P0113 indicate in a 2002 Nissan Altima Sedan?

- The code P0113 indicates an issue with the Intake Air Temperature (IAT) sensor circuit registering a high voltage.

3. What are the possible causes of OBDII code P0113 in a 2002 Nissan Altima Sedan?

- Possible causes include a faulty IAT sensor, damaged wiring or connectors in the sensor circuit, or a problem with the Engine Control Module (ECM).

4. How can I diagnose the OBDII code P0113 in my 2002 Nissan Altima Sedan?

- You can diagnose the issue by checking the IAT sensor's wiring and connectors for damage, testing the sensor's resistance with a multimeter, and scanning the ECM for any related fault codes.

5. Can I drive my 2002 Nissan Altima Sedan with the OBDII code P0113?

- It is not recommended to drive the vehicle with the code P0113 as it can lead to poor engine performance and potentially cause further damage.

6. How do I repair the Intake Air Temperature Sensor Circuit High issue in a 2002 Nissan Altima Sedan?

- Repair options include replacing the faulty IAT sensor, repairing any damaged wiring or connectors, and clearing the fault code with an OBDII scanner.

7. Is it possible to reset the OBDII code P0113 in a 2002 Nissan Altima Sedan without fixing the underlying issue?

- While you can clear the code temporarily, it will likely reappear if the root cause of the high IAT sensor voltage is not addressed.

8. Can extreme weather conditions affect the Intake Air Temperature Sensor Circuit High in a 2002 Nissan Altima Sedan?

- Yes, extreme temperatures can impact the IAT sensor readings, leading to false high voltage readings and triggering the P0113 code.

9. How much does it typically cost to repair the OBDII code P0113 in a 2002 Nissan Altima Sedan?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

10. Will fixing the OBDII code P0113 improve the overall performance of my 2002 Nissan Altima Sedan?

- Yes, resolving the Intake Air Temperature Sensor Circuit High issue can help restore optimal engine performance, improve fuel efficiency, and eliminate related symptoms like rough idling or stalling.

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