P1172 2010 Honda Accord Code - Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High
Quick Answer
The Air/Fuel Ratio (A/F) sensor 1 is installed in the exhaust system and detects oxygen content in the exhaust gas. Common causes include Faulty Air/Fuel Ratio Bank 1 Sensor 1, Air/Fuel Ratio Bank 1 Sensor 1 harness is open or shorted, Air/Fuel Ratio Bank 1 Sensor 1 circuit poor electrical connection. 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
- P1172 2010 Honda Accord indicates Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High.
- Common causes
- Common causes include Faulty Air/Fuel Ratio Bank 1 Sensor 1, Air/Fuel Ratio Bank 1 Sensor 1 harness is open or shorted, Air/Fuel Ratio Bank 1 Sensor 1 circuit poor electrical connection.
- 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.
Code P1172 2010 Honda Accord Description
If the A/F sensor (sensor 1) voltage is low, the air/fuel ratio is lean, and the ECM uses A/F feedback control to issue a Rich command. If the A/F sensor (sensor 1) voltage is high, the air/fuel ratio is rich, and the ECM uses A/F feedback control to issue a Lean command.
What are the Possible Causes of the DTC P1172 2010 Honda Accord?
- Faulty Air/Fuel Ratio Bank 1 Sensor 1
- Air/Fuel Ratio Bank 1 Sensor 1 harness is open or shorted
- Air/Fuel Ratio Bank 1 Sensor 1 circuit poor electrical connection
How to Fix the DTC P1172 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 P1172 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.
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Frequently Asked Questions about P1172 2010 Honda Accord Code
1. What are the common symptoms of OBDII code P1172 in a 2010 Honda Accord related to the Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- Common symptoms include poor fuel economy, rough idling, engine misfires, and the illumination of the check engine light.
2. What could cause the OBDII code P1172 in a 2010 Honda Accord indicating Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- Possible causes include a faulty rear air/fuel ratio sensor, issues with the sensor circuit wiring, exhaust leaks, or problems with the engine's air-fuel mixture.
3. How can I diagnose the root cause of OBDII code P1172 on my 2010 Honda Accord for the Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- Diagnose the issue by inspecting the rear A/F sensor for damage, checking the sensor's wiring and connections, scanning for exhaust leaks, and ensuring proper air-fuel mixture.
4. Can a dirty or contaminated rear A/F sensor trigger the OBDII code P1172 in a 2010 Honda Accord for Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- Yes, a dirty or contaminated sensor can cause inaccurate readings and trigger the code. Cleaning or replacing the sensor may resolve the issue.
5. Are there any DIY repair tips for addressing the OBDII code P1172 on a 2010 Honda Accord related to Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- DIY repair tips include checking and cleaning sensor connections, inspecting wiring for damage, ensuring proper sensor installation, and addressing any exhaust leaks.
6. Is it safe to continue driving a 2010 Honda Accord with the OBDII code P1172 indicating Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- It is not recommended to drive the vehicle for an extended period with this issue, as it can lead to decreased fuel efficiency, engine performance problems, and potential damage if left unresolved.
7. Will resetting the OBDII code P1172 in a 2010 Honda Accord for the Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High make the problem disappear?
- Resetting the code may temporarily turn off the check engine light, but if the underlying issue causing the fault code is not addressed, the code is likely to reappear.
8. How much does it typically cost to repair the OBDII code P1172 on a 2010 Honda Accord related to Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- Repair costs can vary depending on the exact cause of the issue. Costs may range from a few hundred dollars for sensor replacement to more significant amounts if wiring or exhaust repairs are needed.
9. Can a mechanic use a scan tool to troubleshoot the OBDII code P1172 in a 2010 Honda Accord for Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- Yes, a mechanic can use a scan tool to read the code, monitor sensor data, and perform diagnostic tests to pinpoint the exact cause of the problem.
10. How long does it take to repair the OBDII code P1172 on a 2010 Honda Accord related to Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- Repair times can vary based on the specific issue but generally range from 1-3 hours for sensor replacement or wiring repairs. More complex issues may take longer to resolve.
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