OBD-II code · Powertrain (generic)
P0715 Input/Turbine Speed Sensor "A" Circuit Malfunction
The transmission input speed (turbine) sensor signal is missing or implausible. Without this signal, the TCM cannot detect torque converter slip or calculate gear ratio in real time, and shifts become harsh.
Is it safe to drive with P0715?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyInput speed sensor failed
- PossibleWiring or connector fault
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1.5–6 h
- Emissions test
- Usually unaffected
- Parts involved
- Transmission Input Speed Sensor, Transmission Input Speed Sensor Wiring
Related codes
- P0712Transmission Fluid Temperature Sensor Circuit Low
- P0713Transmission Fluid Temperature Sensor Circuit High
- P0714Transmission Fluid Temperature Sensor A Circuit Intermittent
- P0716Input/Turbine Speed Sensor "A" Circuit Range/Performance
- P0717Input/Turbine Speed Sensor Circuit No Signal
- P0718Input or Turbine Shaft Speed Sensor A Circuit Intermittent
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.