P0715 on Honda
Input/Turbine Speed Sensor Circuit Malfunction
P0715 on Honda vehicles indicates input/turbine speed sensor circuit malfunction. Au7o has documented this code across 1 Honda model — most commonly on Ridgeline. P0715 indicates a malfunction in the input/turbine speed sensor circuit of an automatic transmission. This sensor measures how fast the transmission's input (turbine) shaft is rotating, which the transmission control module uses—alongside output speed—to calculate gear ratios and command smooth, properly timed shifts. When the signal is missing, erratic, or out of range, this code sets. Symptoms often include harsh or erratic shifting, incorrect shift points, no speedometer-related transmission data, or the transmission dropping into a limp/fail-safe mode.
Common Causes of P0715
- •Faulty input/turbine speed sensor
- •Damaged wiring or connector at the sensor
- •Low or contaminated transmission fluid
- •Corroded or loose connector terminals
- •Open or short in the sensor circuit
- •Internal transmission wear or debris affecting the sensor
- •Faulty transmission control module (less common)
P0715 on Honda by Model
Honda Ridgeline(1 issue)
- ZF 9-Speed (9AT) Dog-Clutch Hesitation and Harsh Coast-Down Shifts2020-2026
The ZF 9HP-based 9-speed automatic fitted to 2020+ Ridgelines uses dog clutches rather than friction packs for some ratio changes. The dog clutch must synchronize gear speeds before it engages, and the PCM cuts engine torque during the event; when the calibration timing drifts the driver feels a hesitation, a lurch, or a hard bang on deceleration. Ridgeline Owners Club threads document harsh shifts while coasting or descending grades, a momentary loss of engine braking on manual 5-4 downshifts, and noticeably poor shift quality until the fluid is warm. This is distinct from the 10-speed programming complaint - it is the 9AT's dog-clutch architecture and cold-fluid behavior.
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What does P0715 mean on Honda?▼
P0715 stands for "Input/Turbine Speed Sensor Circuit Malfunction." P0715 indicates a malfunction in the input/turbine speed sensor circuit of an automatic transmission. This sensor measures how fast the transmission's input (turbine) shaft is rotating, which the transmission control module uses—alongside output speed—to calculate gear ratios and command smooth, properly timed shifts. When the signal is missing, erratic, or out of range, this code sets. Symptoms often include harsh or erratic shifting, incorrect shift points, no speedometer-related transmission data, or the transmission dropping into a limp/fail-safe mode. On Honda specifically, this code is documented across 1 model.
What causes P0715 on Honda vehicles?▼
Common causes on Honda: Faulty input/turbine speed sensor, Damaged wiring or connector at the sensor, Low or contaminated transmission fluid, Corroded or loose connector terminals, Open or short in the sensor circuit. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0715 on a Honda?▼
Repair costs vary widely depending on the root cause and specific Honda model.
Which Honda models have P0715 documented?▼
Au7o has documented P0715 on 1 Honda model: Ridgeline.