Input/Turbine Shaft Speed Sensor A Circuit
What it means
P0715 means the transmission control module isn't getting a proper signal from the input/turbine shaft speed sensor, which reports how fast the transmission's input side is turning. Because the module uses this to time and control shifts, a fault typically causes harsh or erratic shifting and often forces the transmission into a limp (fail-safe) mode.
Can I keep driving? Drive gently and briefly — without turbine speed input the transmission often shifts harshly or locks into limp mode. Prolonged driving can add wear, so fix it promptly.
Real-world scan data
Appears alongside · share of P0715 scans
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
Common symptoms
What you'll notice
- Harsh, erratic, or delayed shifting
- Transmission stuck in one gear (limp mode)
- Speedometer or gear indicator issues on some vehicles
- Check-engine light on
Common causes
Most likely first
- Faulty input/turbine speed sensorLikely
- Sensor wiring or connector damaged, shorted, or corrodedCommon
- Metal debris on the sensor tip or reluctor ringCommon
- Poor electrical connectionLess often
- Faulty transmission control moduleLess often
How to diagnose & fix
Work through it in order
- Scan and confirm P0715, then read freeze-frame.
- Inspect the sensor connector and wiring for damage and corrosion.
- Remove and check the sensor for debris and the correct air gap.
- Measure the sensor's resistance/output against specification.
- Replace the sensor if faulty; verify the reluctor and TCM if the sensor is good.
FAQ
Quick answers
Is it safe to drive with P0715?+
Can I just clear P0715?+
Related codes
Read & clear P0715 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.