Fault-Code Library · Transmission
P0715: Input / turbine speed sensor circuit
The transmission controller cannot trust the input or turbine speed signal.
Common symptoms
- •Harsh shifts
- •Limp mode
- •Delayed engagement
- •Incorrect gear display
Likely causes
- •Failed speed sensor
- •Mechatronics wiring issue
- •Fluid contamination affecting sensor signal
- •Internal transmission fault
First checks
- •Scan transmission live speed data
- •Check wiring and connector condition
- •Review fluid service history and related gearbox faults
Important
Speed-sensor faults can mimic internal gearbox problems, so read transmission data before approving major repairs.
A fault code identifies a detected condition, not a failed part. Confirm manufacturer-specific subcodes and live data.
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