AutoCodes – Honda – P0103 Honda

P0103 Honda Code - Mass Air Flow Sensor Circuit High Voltage

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 Honda indicates Mass Air Flow Sensor Circuit High Voltage.
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.

Save to My Repairs Step-by-Step Diagnostic Guide My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 40,405

How popular is this code, among other codes? Medium

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 18, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0103 Honda 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 Honda - Mass Air Flow Sensor Circuit High Voltage - AutoCodes.com — P0103 Honda Code - Mass Air Flow Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0103 Honda?

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 Honda?

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 does this mean?

Code Tech Notes

Before replacing the Mass Air Flow (MAF) Sensor, try replacing the air filter and cleaning the Mass Air Flow Sensor with low compress air or Mass Air Flow Sensor Cleaner. Reset code and drive vehicle. If the code comes back, you must replace the Mass Air Flow Sensor to fix the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0103 Honda 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 Honda code?

Need more information on how to fix the P0103 Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0103 Honda code diagnosed by a professional: Find a repair shop in your area

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 Honda Code

1. What are the common symptoms of OBDII code P0103 in a Honda related to the Mass Air Flow Sensor Circuit High Voltage?

The common symptoms include poor engine performance, rough idling, stalling, decreased fuel efficiency, and the illumination of the Check Engine Light.

2. What are the possible causes of OBDII code P0103 in a Honda indicating a Mass Air Flow Sensor Circuit High Voltage issue?

The potential causes include a faulty mass air flow sensor, a damaged or dirty air filter, a vacuum leak, wiring issues, or a problem with the engine's computer.

3. How can I diagnose the Mass Air Flow Sensor Circuit High Voltage issue causing OBDII code P0103 in my Honda?

You can diagnose the issue by inspecting the air filter, checking for any visible damage to the sensor or wiring, testing the sensor's voltage, and using a scan tool to monitor sensor data.

4. Can a dirty air filter trigger OBDII code P0103 in a Honda related to the Mass Air Flow Sensor Circuit High Voltage?

Yes, a dirty air filter can disrupt the airflow and cause incorrect readings by the mass air flow sensor, potentially triggering code P0103.

5. What are some repair tips for resolving OBDII code P0103 in a Honda due to a Mass Air Flow Sensor Circuit High Voltage problem?

Try cleaning or replacing the air filter, inspecting and cleaning the mass air flow sensor, checking for any loose or damaged wiring, and ensuring there are no vacuum leaks.

6. Is it safe to continue driving my Honda with OBDII code P0103 indicating a Mass Air Flow Sensor Circuit High Voltage issue?

It is not recommended to drive the vehicle for an extended period with this issue, as it can lead to further damage and decreased performance. It's best to address the problem promptly.

7. Can a DIY enthusiast fix OBDII code P0103 in a Honda related to the Mass Air Flow Sensor Circuit High Voltage?

Depending on your skill level and access to tools, some aspects of diagnosing and repairing this issue can be done by a DIY enthusiast. However, if in doubt, it's advisable to consult a professional mechanic.

8. How much does it typically cost to repair OBDII code P0103 in a Honda caused by a Mass Air Flow Sensor Circuit High Voltage problem?

The cost of repair can vary based on the root cause of the issue and whether you perform the repair yourself or take it to a mechanic. Costs may range from a few dollars for a new air filter to a few hundred dollars for a new mass air flow sensor.

9. Are there any preventive measures to avoid encountering OBDII code P0103 due to a Mass Air Flow Sensor Circuit High Voltage issue in a Honda?

Regularly inspect and maintain the air filter, ensure the mass air flow sensor is clean, and address any engine performance issues promptly to prevent triggering this code.

10. How important is it to address OBDII code P0103 related to the Mass Air Flow Sensor Circuit High Voltage in a Honda?

It's crucial to address this issue promptly to prevent further damage to the engine, maintain optimal fuel efficiency, and ensure the vehicle operates smoothly. Ignoring the problem can lead to more severe issues over time.