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.
P0134Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System MalfunctionP0134Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1] Heater System MalfunctionP0134rear A/F sensor [bank 1, sensor 1] heater system malfunctionManufacturer communications
15Original wording in English
ACURA
Reported code forms P0134
Service bulletin - The MIL comes on with DTC P0134 (rear A/F sensor [bank 1, sensor 1] heater system malfunction) and/or P0154 (front A/F sensor [bank 2, sensor 1] heater system malfunction). The PCM misinterprets the…
ACURA
Reported code forms P0134
Questionnaire for 2014-2015 MDX/RLX MIL On with DTC P0154 or P0134 Stored
ACURA
Reported code forms P0134
Dealer message - American Honda (AHM) is investigating certain 2014-2015 MDX & RLXs with a complaint that the Malfunction Indicator Lamp (MIL) is on and DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1]Heater…
ACURA
Reported code forms P0134
Dealer message - American Honda (AHM) is investigating certain 2014-2015 MDX & RLXs with a complaint that the Malfunction Indicator Lamp (MIL) is on and DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1] Heater…
ACURA
Reported code forms P0134
Dealer message - American Honda (AHM) is investigating certain 2014-2015 MDX & RLXs with a complaint that the Malfunction Indicator Lamp (MIL) is on and DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1]Heater…
ACURA
Reported code forms P0134
Dealer message - American Honda (AHM) is investigating certain 2014-2015 MDX & RLXs with a complaint that the Malfunction Indicator Lamp (MIL) is on and DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1]Heater…
Check vehicle applicability
2A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
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.