Some customers may experience the CHECK ENGINE light ON with DTC P0012:00 (Electric variable valve timing...
Mazda technical service bulletin 01-021-19-3649 for 2019-2020 Mazda MAZDA3.
- Bulletin number
- 01-021-19-3649
- Component
- Engine and engine cooling
- Summary
- Some customers may experience the CHECK ENGINE light ON with DTC P0012:00 (Electric variable valve timing control system: Over-retarded) stored in PCM memory. NOTE: This concern occurs only on the vehicles with PCMs manufactured by MITSUBISHI.This is caused by improper control logic of the PCM detecting a false error. To correct this issue, the PCM software has been modified. NOTE: The VVT actuator is damaged by the improper control logic.
Owners of these vehicles have filed 12 complaints in the engine category.
Vehicles covered
- Mazda MAZDA3 2019-2020 20192020
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