What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P0134Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System MalfunctionP0134Air Fuel Ratio Sensor [Bank 1, Sensor 1] Heater System MalfunctionManufacturer communications
6Original wording in English
HONDA
Reported code forms P0134
Service Bulletin - The engine runs rough and makes a rattling noise, accompanied by DTC P0134 or P0135 due to a possible fuel injector leak causing a rich air/fuel (A/F) mixture that fouls the spark plug(s) and causing…
HONDA
Reported code forms P0134
Dealer message - American Honda (AHM) is investigating certain 2014 Accord Hybrid with a complaint of the Malfunction Indicator Lamp (MIL) on with P0134 (Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System…
HONDA
Reported code forms P0134
Engineering request for investigation - American Honda (AHM) is investigating certain 2014 Accord Hybrid with a complaint of the Malfunction Indicator Lamp (MIL) on with P0134 (Air Fuel Ratio Sensor [Bank 1, Sensor 1]…
HONDA
Reported code forms P0134
Dealer message - American Honda (AHM) is investigating certain 2014 Accord Hybrid with a complaint of the Malfunction Indicator Lamp (MIL) on with P0134 (Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System…
HONDA
Reported code forms P0134
Engineering request for investigation - American Honda (AHM) is investigating certain 2014 Accord Hybrid with a complaint of the Malfunction Indicator Lamp (MIL) on with P0134 (Air Fuel Ratio Sensor [Bank 1, Sensor 1]…
HONDA
Reported code forms P0134
Dealer message - American Honda (AHM)is investigating certain 2014 Accord Hybrid with a complaint of the Malfunction Indicator Lamp (MIL)on with P0134 (Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System…
Check vehicle applicability
4A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Honda | ACCORD HYBRID | 2025 |
| Honda | ACCORD HYBRID | 2024 |
| Honda | ACCORD HYBRID | 2023 |
| Honda | ACCORD HYBRID | 2014 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.