Some vehicles may exhibit the CHECK ENGINE light on with DTC P011B:00 (Engine coolant temperature/IAT:...
Mazda technical service bulletin 01-014-21-3840 for 2018 Mazda MAZDA6 and 2018 Mazda CX-9.
- Bulletin number
- 01-014-21-3840
- Component
- Electrical system: ADAS: driver monitoring: software
- Summary
- Some vehicles may exhibit the CHECK ENGINE light on with DTC P011B:00 (Engine coolant temperature/IAT: Correlation error) when using an engine block heater which is set up by MCI as local accessory parts. Due to variation of block heater performance and environmental conditions against the SKYACTIV-G 2.5T engine, the PCM has difficulty detecting block heater operation. To eliminate this concern, the control software of the PCM has been modified to increase the margin for the block heater detection performance to the similar level as 2019 and later models.
Owners of these vehicles have filed 19 complaints in the electrical category.
Vehicles covered
- Mazda MAZDA6 2018 2018
- Mazda CX-9 2018 2018
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