If you receive a customer concern about the CHECK IN light coming on and DTC P3400 (cylinder deactivation...
Mazda technical service bulletin SA-061-20a for 2019-2020 Mazda MAZDA3, 2018-2020 Mazda CX-5 and 2018-2020 Mazda MAZDA6 and others.
- Bulletin number
- SA-061-20a
- Component
- Engine and engine cooling
- Summary
- If you receive a customer concern about the CHECK IN light coming on and DTC P3400 (cylinder deactivation system malfunction) stored, the cylinder deactivation oil control valve may be plugged with plastic debris from the oil filter wrapper. The debris may enter the center of the oil filter when poking a hole in the filter wrapper during removal, and then travel through the engine and plug the cylinder deactivation oil control valve.
Owners of these vehicles have filed 394 complaints in the engine category.
Vehicles covered
- Mazda MAZDA3 2019-2020 20192020
- Mazda CX-5 2018-2020 201820192020
- Mazda MAZDA6 2018-2020 201820192020
- Mazda CX-30 2020 2020
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