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.
P2A00O2 Sensor 1/1 Circuit PerformanceP2A00O2 Sensor 1/1 Circuit PerformanceManufacturer communications
17Original wording in English
CADILLAC, CHEVROLET, GMC
Reported code forms P2A00
This technical bulletin provides a procedure to test the intake manifold for any possible leaks that may cause the customers concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P0172, P026D, P2459, and/or…
CADILLAC, CHEVROLET, GMC
Reported code forms P2A00
This technical bulletin provides a procedure to test the intake manifold for any possible leaks that may cause the customers concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P0172, P026D, P2459, and/or…
FORD
Reported code forms P2A00
Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0315, P054F, P054E, P2A00, P2A01, and/or P02ED stored in…
FORD
Reported code forms P2A00
Some 2022 F-Super Duty vehicles equipped with a 6.7L engine and built on or before 05-Oct-2021 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P054E, P054F, P02ED, P2A00…
CHEVROLET, GMC
Reported code forms P2A00
This Preliminary Information communication provides information to the technician about vehicles that have a check engine light on. Technician may find Diagnostic Trouble Codes P0101, P0299, P0712, P11CC, P11DC, P2002,…
CHEVROLET, GMC
Reported code forms P2A00
This Preliminary Information communication provides information to the technician about vehicles that have a check engine light on. Technician may find Diagnostic Trouble Codes P0101, P0299, P0712, P11CC, P11DC, P2002,…
Check vehicle applicability
109A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Cadillac | ESCALADE | 2024 |
| Cadillac | ESCALADE | 2023 |
| Cadillac | ESCALADE | 2022 |
| Cadillac | ESCALADE ESV | 2023 |
| Cadillac | ESCALADE ESV | 2022 |
| Chevrolet | COLORADO | 2016 |
| Chevrolet | SILVERADO | 2017 |
| Chevrolet | SILVERADO 1500 | 2024 |
| Chevrolet | SILVERADO 1500 | 2023 |
| Chevrolet | SILVERADO 1500 | 2022 |
| Chevrolet | SILVERADO 1500 | 2019 |
| Chevrolet | SILVERADO 2500 | 2018 |
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.