AutoCodes – Honda – P1109 2010 Honda Accord

P1109 2010 Honda Accord Code - BARO Sensor Circuit Out of Range High

Quick Answer

The Barometric Pressure (BARO) sensor is built into the Engine Control Module (ECM) and monitors atmospheric pressure. Common causes include Engine Control Module (ECM) outdated or incorrect software, Faulty Engine Control Module (ECM). 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: P1109 2010 Honda Accord indicates BARO Sensor Circuit Out of Range High.
Common causes: Common causes include Engine Control Module (ECM) outdated or incorrect software, Faulty Engine Control Module (ECM).
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 My Repairs

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

Code Popularity 2,203

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 19, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

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

Code P1109 2010 Honda Accord Description

The Barometric Pressure (BARO) sensor is built into the Engine Control Module (ECM) and monitors atmospheric pressure. The ECM estimates appropriate intake airflow from the Manifold Absolute Pressure (MAP) sensor output voltage and BARO sensor output voltage. If the BARO sensor output voltage is a specified value or more, the ECM detects a malfunction and a code is stored.

OBDII Code P1109 2010 Honda Accord - BARO Sensor Circuit Out of Range High - AutoCodes.com — P1109 2010 Honda Accord Code - BARO Sensor Circuit Out of Range High

What does this mean?

What are the Possible Causes of the DTC P1109 2010 Honda Accord?

Engine Control Module (ECM) outdated or incorrect software
Faulty Engine Control Module (ECM)

How to Fix the DTC P1109 2010 Honda Accord?

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 P1109 2010 Honda Accord 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 P1109 2010 Honda Accord code?

Need more information on how to fix the P1109 2010 Honda Accord code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1109 2010 Honda Accord 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 P1109 2010 Honda Accord Code

1. What are the common symptoms of OBDII code P1109 in a 2010 Honda Accord?

The common symptoms of OBDII code P1109 (BARO Sensor Circuit Out of Range High) in a 2010 Honda Accord may include rough idling, reduced engine performance, and possible stalling.

2. What causes the OBDII code P1109 in a 2010 Honda Accord?

The P1109 code in a 2010 Honda Accord is typically triggered by a faulty BARO (barometric pressure) sensor or issues with the sensor circuit, such as wiring problems or corrosion.

3. How serious is the OBDII code P1109 in a 2010 Honda Accord?

While the P1109 code may not cause immediate harm to the vehicle, it can affect engine performance and fuel efficiency. It is recommended to address the issue promptly to prevent further damage.

4. Can I still drive my 2010 Honda Accord with the OBDII code P1109 present?

It is generally not advisable to drive your 2010 Honda Accord with the P1109 code active, as it can lead to poor engine performance and potential stalling. It's best to have the issue diagnosed and repaired before driving the vehicle.

5. How do I diagnose the OBDII code P1109 in my 2010 Honda Accord?

Diagnosing the P1109 code involves using an OBDII scanner to retrieve the code, checking the BARO sensor and its circuit for any visible damage, and testing the sensor's voltage and resistance to determine if it is functioning properly.

6. Can I repair the OBDII code P1109 in my 2010 Honda Accord myself?

If you have experience with automotive repairs and the necessary tools, you may be able to repair the P1109 code in your 2010 Honda Accord yourself. However, it is recommended to consult a professional mechanic for accurate diagnosis and repair.

7. What are some tips for repairing the OBDII code P1109 in a 2010 Honda Accord?

Some tips for repairing the P1109 code include checking and cleaning the sensor connections, inspecting the sensor wiring for damage, and replacing the BARO sensor if necessary. Resetting the fault code after repairs is also recommended.

8. How much does it cost to repair the OBDII code P1109 in a 2010 Honda Accord?

The cost of repairing the P1109 code in a 2010 Honda Accord can vary depending on the cause of the issue, labor rates in your area, and whether you choose to do the repairs yourself or take your vehicle to a mechanic.