P0135 2008 Honda Accord Code - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1
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 1, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 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
- P0135 2008 Honda Accord indicates O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1.
- Common causes
- Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 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.
Code P0135 2008 Honda Accord Description
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.
What are the Possible Causes of the DTC P0135 2008 Honda Accord?
- Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0135 2008 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 P0135 2008 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 P0135 2008 Honda Accord code?
Need more information on how to fix the P0135 2008 Honda Accord code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0135 2008 Honda Accord code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0135 2008 Honda Accord Code
1. What does the OBDII code P0135 on a 2008 Honda Accord mean?
- It indicates a malfunction in the O2 sensor heater circuit of Bank 1 Sensor 1, responsible for monitoring the oxygen levels in the exhaust system.
2. What are the common symptoms of O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1 (P0135) in a 2008 Honda Accord?
- Common symptoms include poor fuel economy, rough idling, engine misfires, and an illuminated check engine light.
3. What are the possible causes of the P0135 OBDII code on a 2008 Honda Accord?
- The code could be triggered by a faulty O2 sensor, damaged wiring or connectors, a blown fuse, or issues with the engine control module (ECM).
4. How can I diagnose the O2 Sensor Heater Circuit Malfunction in my 2008 Honda Accord?
- A diagnostic scan tool can help pinpoint the exact cause by reading the error codes and monitoring sensor data to identify any anomalies.
5. Can I continue driving my 2008 Honda Accord with the P0135 code?
- It is not recommended to drive with the P0135 code as it can lead to decreased fuel efficiency and potential engine damage if left unresolved.
6. What is the typical repair process for fixing the O2 Sensor Heater Circuit Malfunction on a 2008 Honda Accord?
- The repair process involves inspecting the O2 sensor, checking and repairing any damaged wiring or connectors, replacing the sensor if necessary, and resetting the fault codes.
7. How much does it cost to repair the O2 Sensor Heater Circuit issue in a 2008 Honda Accord?
- Repair costs can vary depending on the exact cause of the issue, but typically range from $150 to $400 for parts and labor.
8. Can I replace the O2 sensor in my 2008 Honda Accord myself to fix the P0135 code?
- If you have the necessary tools and expertise, you can replace the O2 sensor yourself. However, it is recommended to consult a professional if you are unsure.
9. Will resetting the check engine light resolve the P0135 code temporarily?
- Resetting the check engine light may temporarily turn it off, but the underlying issue causing the code will still need to be diagnosed and repaired to prevent it from reoccurring.
10. How often should the O2 sensor be replaced in a 2008 Honda Accord to prevent future issues?
- O2 sensors typically last around 100,000 miles, but it's advisable to follow the manufacturer's recommended maintenance schedule for optimal performance and efficiency.
Discuss the causes and fixes for P0135 2008 Honda Accord OBDII Code
Code P0135 2008 Honda Accord comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
