AutoCodes – Nissan – P0103 2007 Nissan Maxima

P0103 2007 Nissan Maxima Code - Mass Air Flow Sensor Circuit High Input

Quick Answer

The Mass Air Flow (MAF) sensor is placed in the stream of the intake air. Common causes include Dirty Air Filter, Dirty Mass Air Flow (MAF) Sensor, Intake air leaks. 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
P0103 2007 Nissan Maxima indicates Mass Air Flow Sensor Circuit High Input.
Common causes
Common causes include Dirty Air Filter, Dirty Mass Air Flow (MAF) Sensor, Intake air leaks.
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.
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Code Popularity 3,941
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code P0103 2007 Nissan Maxima Description

The Mass Air Flow (MAF) sensor is placed in the stream of the intake air. It measures the intake flow rate by measuring a part of the entire intake flow. It consists of a hot film that is supplied with electric current from the Engine Control Module (ECM). The ECM controls the temperature of the hot film by a certain amount. The heat generated by the hot film is reduced as the intake air flows around it. The more air, the greater the heat loss. Therefore, the ECM must supply more electric current to maintain the temperature of the hot film as air flow increases. The ECM detects the air flow by means of this current change. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the MAF Sensor Signal is more than the factory specifications.
OBDII Code P0103 2007 Nissan Maxima - Mass Air Flow Sensor Circuit High Input - AutoCodes.com
P0103 2007 Nissan Maxima Code - Mass Air Flow Sensor Circuit High Input

What are the Possible Causes of the DTC P0103 2007 Nissan Maxima?

  • Dirty Air Filter
  • Dirty Mass Air Flow (MAF) Sensor
  • Intake air leaks
  • Faulty Mass Air Flow Sensor
  • Mass Air Flow Sensor harness is open or shorted
  • Mass Air Flow Sensor circuit poor electrical connection

How to Fix the DTC P0103 2007 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0103 2007 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.

Need more information about the P0103 2007 Nissan Maxima 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 P0103 2007 Nissan Maxima Code

1. What are the common symptoms of OBDII code P0103 on a 2007 Nissan Maxima?

The common symptoms of OBDII code P0103 (Mass Air Flow Sensor Circuit High Input) on a 2007 Nissan Maxima include rough idling, stalling, decreased fuel efficiency, and the vehicle may even fail to start.

2. What are the possible causes of OBDII code P0103 on a 2007 Nissan Maxima?

The possible causes of OBDII code P0103 on a 2007 Nissan Maxima include a faulty mass air flow sensor, damaged or disconnected wiring in the sensor circuit, or a problem with the vehicle's powertrain control module (PCM).

3. How can I diagnose OBDII code P0103 on my 2007 Nissan Maxima?

To diagnose OBDII code P0103 on a 2007 Nissan Maxima, you can use an OBDII scanner to retrieve the trouble code, visually inspect the mass air flow sensor and its wiring for any signs of damage, and perform a continuity test on the sensor circuit.

4. Can I drive my 2007 Nissan Maxima with OBDII code P0103?

It is not recommended to drive your 2007 Nissan Maxima with OBDII code P0103 (Mass Air Flow Sensor Circuit High Input) as it can lead to poor engine performance and potential further damage to the vehicle.

5. How do I repair OBDII code P0103 on my 2007 Nissan Maxima?

To repair OBDII code P0103 on a 2007 Nissan Maxima, you may need to replace the mass air flow sensor, repair any damaged wiring in the sensor circuit, or reprogram the vehicle's PCM if necessary.

6. Can a dirty air filter cause OBDII code P0103 on a 2007 Nissan Maxima?

A dirty air filter is unlikely to directly cause OBDII code P0103 (Mass Air Flow Sensor Circuit High Input) on a 2007 Nissan Maxima, but it can affect the performance of the mass air flow sensor and contribute to related issues.

7. Is it safe to clear the OBDII code P0103 on my 2007 Nissan Maxima without fixing the underlying issue?

Clearing the OBDII code P0103 on a 2007 Nissan Maxima without fixing the underlying issue (such as replacing a faulty mass air flow sensor) is not recommended, as the problem will likely reoccur and can lead to more severe engine problems.

8. How much does it typically cost to repair OBDII code P0103 on a 2007 Nissan Maxima?

The cost to repair OBDII code P0103 on a 2007 Nissan Maxima can vary depending on the specific issue, but it may range from $100 to $500 or more, including parts and labor.

9. Can a DIY enthusiast fix OBDII code P0103 on a 2007 Nissan Maxima?

A DIY enthusiast with the necessary tools and knowledge may be able to fix OBDII code P0103 on a 2007 Nissan Maxima, especially if it involves tasks like replacing the mass air flow sensor or repairing wiring. However, complex issues may require professional assistance.

10. Will OBDII code P0103 on a 2007 Nissan Maxima cause the check engine light to illuminate?

Yes, OBDII code P0103 (Mass Air Flow Sensor Circuit High Input) on a 2007 Nissan Maxima will trigger the check engine light to illuminate, indicating a potential issue with the mass air flow sensor or its circuit.

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