Some customers may experience a check engine light on and DTC P0401:00 stored in memory without any...
Mazda technical service bulletin 01-017-18-3518 for 2016-2018 Mazda CX-9.
- Bulletin number
- 01-017-18-3518
- Component
- Engine
- Summary
- Some customers may experience a check engine light on and DTC P0401:00 stored in memory without any drivability issues. P0401:00 - [PCM] EGR flow insufficient detected. This concern may be caused by the detection logic for the DTC is too sensitive. To eliminate this concern, the control logic of the PCM has been modified.
Owners of these vehicles have filed 193 complaints in the engine category.
Vehicles covered
- Mazda CX-9 2016-2018 201620172018
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