P0715 Gearbox input shaft speed sensor not working
P0715 means: Gearbox input shaft speed sensor not working. The automatic gearbox control unit found a fault. Drive gently and have the car checked soon. The repair usually costs about €100–2500 in Estonia. The most common cause: gearbox oil is low or old. Other possible causes: sensor or solenoid has failed, wire or connector.
What it means
The automatic gearbox control unit found a fault. The gearbox may go into limp mode: it stays in one gear and shifts harshly or not at all.
What could be wrong
- 1Gearbox oil is low or old
- 2Sensor or solenoid has failed
- 3Wire or connector
- 4Internal gearbox wear
What you can check yourself
Check for oil spots under the car. Avoid hard acceleration and don't drive far in limp mode. Best left to a workshop. It needs a diagnostic tool and experience.
How we fix it
- We read all the gearbox fault codes
- We check the gearbox oil
- We replace the sensor, solenoid or oil, and repair the gearbox if needed
Standard SAE description: Input/Turbine Speed Sensor Circuit