What are the common causes of P0715?

Faulty input/turbine speed sensor. Damaged sensor wiring inside the transmission. Low or contaminated transmission fluid. Internal harness or connector damage. TCM fault.

Check transmission fluid level and condition. Read input shaft speed on an OBD-II scanner and compare to engine RPM shift times. Inspect the internal transmission wiring and connector. Test the speed sensor resistance. Replace the sensor or repair the internal harness as needed.

P0715

Input/Turbine Speed Sensor A Circuit Malfunction

System: Transmission (P code)
Lamp: Check Engine Light
Category: Powertrain - Transmission

What it means

P0715 means Input/Turbine Speed Sensor A Circuit Malfunction.

Where it lives

For P0715, the part to look at first is the sensor named here.

Check these first

Faulty input/turbine speed sensor
Damaged sensor wiring inside the transmission
Low or contaminated transmission fluid
Internal harness or connector damage
TCM fault

What to do next

Check transmission fluid level and condition
Read input shaft speed on an OBD-II scanner and compare to engine RPM shift times
Inspect the internal transmission wiring and connector
Test the speed sensor resistance
Replace the sensor or repair the internal harness as needed

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Updated

Generic SAE J2012 definition. Last updated 2026-08-30.