Some vehicles may experience a lack of power and the check engine light on with DTC P061B:00 and U0401:00...
Mazda technical service bulletin 01-015-18-3513a for 2018 Mazda CX-5, 2018 Mazda MAZDA6 and 2019 Mazda MX-5 and others.
- Bulletin number
- 01-015-18-3513a
- Component
- Engine
- Summary
- Some vehicles may experience a lack of power and the check engine light on with DTC P061B:00 and U0401:00 stored in the PCM memory when engine cranking is interrupted and on A/T vehicles, DTC U0442:00 is also stored. This concern most likely occurs when the brake pedal is released during engine cranking. DTC P061B:00 - [PCM] Internal control module torque calculation performance problem. DTC U0401:00 - Signal error from PCM DTC U0442:00 - [TCM] Invalid data received from PCM. Due to an improper control logic of the PCM, the engine torque calculation error detection is too sensitive. To eliminate this concern, the PCM software has been modified.
Owners of these vehicles have filed 221 complaints in the engine category.
Vehicles covered
- Mazda CX-5 2018 2018
- Mazda MAZDA6 2018 2018
- Mazda MX-5 2019 2019
- Mazda CX-3 2019 2019
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