HONDA
ATI&11282023910
Manufacturer communications
- Publication date
- 2023-11-28
- Received by NHTSA
- 2023-12-08
- NHTSA record numbers
- 10246405
Manufacturer summary
Original wording in English
Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2017-2018 Fits with customer complaint of Check Engine Light (CEL) on with DTC P0420 (Catalyst System Efficiency Below Threshold) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting a repair of any kind.
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.