Mazda CX-3 2012–2019 — technical service bulletin
Bulletin 05-003-20-3725 · NHTSA communication 10177843 · issued Jul 9, 2020
Technical service bulletin
communication type
Power Train
component
2012–2019
model years
28
vehicle entries
Official summary
Some vehicles may experience the check engine light and automatic transaxle warning light ON with one or more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780, P1738). This is caused by the oil pressure switch A and/or B at the control valve body temporarily or permanently getting stuck due to contamination entering the passage. To correct the problem, some mass production changes have been implemented to reduce contamination and improve the DTC diagnostic logic.
Vehicles covered
- 2016 Mazda CX-3
- 2017 Mazda CX-3
- 2018 Mazda CX-3
- 2019 Mazda CX-3
- 2013 Mazda CX-5
- 2014 Mazda CX-5
- 2015 Mazda CX-5
- 2016 Mazda CX-5
- 2017 Mazda CX-5
- 2018 Mazda CX-5
- 2019 Mazda CX-5
- 2016 Mazda CX-9
- 2017 Mazda CX-9
- 2018 Mazda CX-9
- 2019 Mazda CX-9
- 2012 Mazda MAZDA3
- 2013 Mazda MAZDA3
- 2014 Mazda MAZDA3
- 2015 Mazda MAZDA3
- 2016 Mazda MAZDA3
- 2017 Mazda MAZDA3
- 2018 Mazda MAZDA3
- 2014 Mazda MAZDA6
- 2015 Mazda MAZDA6
- 2016 Mazda MAZDA6
- 2017 Mazda MAZDA6
- 2018 Mazda MAZDA6
- 2019 Mazda MAZDA6
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.