| Detection condition |
- Any one of the following conditions is met:
- The vehicle speed when driving forward calculated from the output shaft speed signal is the specification or more.
- The vehicle speed when reversing calculated from the output shaft speed signal is the specification or more.
Precondition
- Vehicle is being driven (not during shifting)
- There is correlation between the vehicle speed signal from the electronically controlled brake unit/DSC HU/CM and the turbine/input shaft speed signal.
|
| Fail-safe |
- Inhibits learning control.
- Inhibits manual mode.
- Inhibits switching from engine-only driving to EV driving. (With Mazda M Hybrid boost)
- Inhibits i-stop control. (Without Mazda M Hybrid boost)
- Inhibits AAS.
|
| Possible cause |
- DTC is stored in the TCM. (Sensor power supply No. 1 low voltage malfunction) (See P0642-00: ).
- Malfunction in the following control valve body component parts (Refer to [CONTROL VALVE BODY REMOVAL/INSTALLATION
] in service information).
- Output shaft speed sensor
- Output shaft speed sensor signal circuit
- Output shaft speed sensor power supply circuit
|
| Repeatability verification procedure |
- Clear the DTC recorded in the memory. (See CLEARING DTC
.)
- Perform the following procedure to ensure that the DTC has been resolved:
- Drive the vehicle under the following condition:
- Vehicle speed: 30 km/h {19 mph} or more
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| System wiring diagram |
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