P0715
Input/turbine speed sensor "A" circuit
The transmission controller has detected a fault in the input or turbine speed sensor A circuit.
What this code means
The transmission controller has detected a fault in the input or turbine speed sensor A circuit.
Possible causes
- Failed input speed sensor
- Sensor wiring or connector fault
- Transmission internal issue
- Control-module fault
Common symptoms
- Check engine light
- Harsh or incorrect shifting
- Limp mode
- Speed or RPM data may be implausible
Checks to make
- Read transmission-module codes
- Inspect sensor wiring
- Compare input speed data with engine and output speed
- Follow manufacturer transmission tests
Safety
- Do not replace parts from the code alone. Confirm the fault with live data, wiring checks and manufacturer procedures. Keep clear of hot or moving engine components.
Model notes
The code definition is generic; exact diagnostic thresholds, component locations and repair procedures vary by vehicle.