AutoCodes – Honda – P0141 2009 Honda Accord

P0141 2009 Honda Accord Code - O2 Sensor 1 Sensor 2 Heater Circuit Malfunction Bank

Quick Answer

Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 degrees F to produce an accurate voltage signal. Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit fuse, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit open shorted to ground. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P0141 2009 Honda Accord indicates O2 Sensor 1 Sensor 2 Heater Circuit Malfunction Bank.
Common causes
Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit fuse, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit open shorted to ground.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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Code Popularity 8,930
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0141 2009 Honda Accord Description

Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 degrees F to produce an accurate voltage signal. The faster the heated oxygen sensor reaches that temperature the faster the sensor will start sending an accurate signal to the Engine Control Module (ECM).
In order to achieve the require temperature, a heater element is included inside the heated oxygen sensor. The ECM controls the heated oxygen sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground.
The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.
OBDII Code P0141 2009 Honda Accord - O2 Sensor 1 Sensor 2 Heater Circuit Malfunction Bank - AutoCodes.com
P0141 2009 Honda Accord Code - O2 Sensor 1 Sensor 2 Heater Circuit Malfunction Bank

What are the Possible Causes of the DTC P0141 2009 Honda Accord?

  • Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2
  • Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit fuse
  • Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit open shorted to ground
  • Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0141 2009 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0141 2009 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 P0141 2009 Honda Accord 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 P0141 2009 Honda Accord Code

1. What does OBDII code P0141 mean for a 2009 Honda Accord?

The code P0141 on a 2009 Honda Accord indicates a malfunction in the O2 sensor 1 sensor 2 heater circuit of Bank 1.

2. What are the common symptoms of a P0141 error in a 2009 Honda Accord?

Common symptoms of a P0141 error in a 2009 Honda Accord may include poor fuel economy, rough idling, and an illuminated check engine light.

3. What are the possible causes of a P0141 error in a 2009 Honda Accord?

Possible causes of a P0141 error in a 2009 Honda Accord include a faulty O2 sensor, damaged wiring, or a blown fuse in the heater circuit.

4. How can I diagnose a P0141 error in my 2009 Honda Accord?

To diagnose a P0141 error in a 2009 Honda Accord, you can use an OBDII scanner to read the trouble codes, visually inspect the O2 sensor and its wiring, and test the heater circuit for continuity.

5. Can I drive my 2009 Honda Accord with a P0141 error code?

It is not recommended to drive your 2009 Honda Accord with a P0141 error code as it can lead to decreased fuel efficiency and potential damage to the engine over time.

6. How much does it cost to repair a P0141 error in a 2009 Honda Accord?

The cost to repair a P0141 error in a 2009 Honda Accord can vary depending on the cause of the issue, but it may range from $150 to $400 for parts and labor.

7. Is it possible to reset the P0141 error code on a 2009 Honda Accord?

While you can reset the check engine light to clear the P0141 error code temporarily, it is important to address the underlying issue causing the code to prevent further problems.

8. Can a P0141 error in a 2009 Honda Accord cause emissions test failure?

Yes, a P0141 error in a 2009 Honda Accord can cause emissions test failure as it indicates a malfunction in the O2 sensor heater circuit, which is crucial for proper emissions control.

9. How long does it take to repair a P0141 error in a 2009 Honda Accord?

The repair time for a P0141 error in a 2009 Honda Accord can vary depending on the exact cause of the issue, but it typically takes around 1-2 hours to diagnose and fix the problem.

10. Can I replace the O2 sensor myself to fix a P0141 error in my 2009 Honda Accord?

Replacing the O2 sensor to fix a P0141 error in a 2009 Honda Accord can be done by a DIY enthusiast with the right tools and knowledge, but it is recommended to consult a professional mechanic for accurate diagnosis and repair.

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