I currently have a problem with a code dtc p0421 on my mazda 3 2015, I found a service bulletin number: 01-010 / 16. In this bulletin he describes CHECK ENGINE LIGHT ON WITH DTC P0421, apparently with a reprogramming of the pcm it is solved. I would like to know if anyone knows about this...
hi i have a big problem whit this DTC codes.
Code: U0442 - Invalid Data Received From ECM/PCM B
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC
Module: Transmission Control Module
Code: P0472 - Exhaust Pressure Sensor Low Input