MasterTuning Fault code dictionary (DTC)

P0715 — Input/turbine speed sensor circuit

Severity: Serious Can you drive? With caution: limp mode possible, have it checked soon Make: All makes (OBD-II standard)
MeaningThe transmission control unit does not know how fast the gearbox input is turning. Without it, it cannot schedule shifts and drops into limp mode to protect itself.
FamilyPowertrain (P)

Typical symptoms

Gearbox locked in one gear (limp mode)
Very harsh shifts
Engine or transmission warning light on
Reverse not engaging

Common causes

Faulty sensor
Broken wiring or oil-contaminated connector
Worn-out fluid with metal debris on the sensor
Faulty transmission control unit

What to do

Read turbine and output speed on the diagnostic tool during a road test: if the first stays at zero while the car moves, the sensor or its wiring is open. If the fluid comes out black with debris, the real problem is further upstream and the sensor is only the messenger.

Frequently asked questions

What does code P0715 mean?

Input/turbine speed sensor circuit. The transmission control unit does not know how fast the gearbox input is turning. Without it, it cannot schedule shifts and drops into limp mode to protect itself.

Can I keep driving with code P0715 active?

With caution: limp mode possible, have it checked soon

Common causes — P0715

Faulty sensor Broken wiring or oil-contaminated connector Worn-out fluid with metal debris on the sensor Faulty transmission control unit

How do you fix code P0715?

Read turbine and output speed on the diagnostic tool during a road test: if the first stays at zero while the car moves, the sensor or its wiring is open. If the fluid comes out black with debris, the real problem is further upstream and the sensor is only the messenger.

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