HONDA
A22-040
Manufacturer communications
- Publication date
- 2022-09-21
- Received by NHTSA
- 2022-09-27
- NHTSA record numbers
- 10222076
Manufacturer summary
Original wording in English
Service Bulletin - The MIL is on with P0420 (Catalyst System Efficiency Below Threshold). Sensors on the vehicle may misinterpret the catalyst as deteriorated or it may have deteriorated.
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Honda
P0420Catalyst System Efficiency Below ThresholdCheck vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.