P0154 Honda Code - Front Air/Fuel Ratio Sensor Bank 2 Sensor 1 Heater System Malfunction
Quick Answer
The front air/fuel ratio (A/F) sensor (Sensor 1 Bank 2) is activated by warming the element with the heater and by maintaining it at a steady high temperature to calculate accurate air/fuel (A/F) ratio. Common causes include Faulty Air/Fuel Ratio Sensor Bank 2 Sensor 1, Air/Fuel Ratio Sensor Bank 2 Sensor 1 harness is open or shorted, Air/Fuel Ratio Sensor Bank 2 Sensor 1 circuit poor electrical connection. 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
- P0154 Honda indicates Front Air/Fuel Ratio Sensor Bank 2 Sensor 1 Heater System Malfunction.
- Common causes
- Common causes include Faulty Air/Fuel Ratio Sensor Bank 2 Sensor 1, Air/Fuel Ratio Sensor Bank 2 Sensor 1 harness is open or shorted, Air/Fuel Ratio Sensor Bank 2 Sensor 1 circuit poor electrical connection.
- 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 P0154 Honda Description
What are the Possible Causes of the DTC P0154 Honda?
- Faulty Air/Fuel Ratio Sensor Bank 2 Sensor 1
- Air/Fuel Ratio Sensor Bank 2 Sensor 1 harness is open or shorted
- Air/Fuel Ratio Sensor Bank 2 Sensor 1 circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks may be faulty
- Exhaust gas leaks
How to Fix the DTC P0154 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.
Code Tech Notes
2003-2005 Honda Accord V6s
2005 Honda Odysseys
2005 Honda Pilots
2006 Honda Ridgelines
To fix this problem, check the sensor wiring and connections for damage. If the sensor circuit is OK, and the DTC(s) come back after clearing them and doing a short test-drive, replace the A/F sensor. The replacement A/F sensors in Honda parts stock are an improved version over the original sensor.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0154 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 P0154 Honda code?
Need more information on how to fix the P0154 Honda code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0154 Honda code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0154 Honda Code
No Frequently Asked Questions about P0154 Honda Code found.
Discuss the causes and fixes for P0154 Honda OBDII Code
-
What model and year is your Honda? Depends on the model, year, location, labor, etc.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
