P0717 on Buick
Input/Turbine Speed Sensor Circuit No Signal
P0717 on Buick vehicles indicates input/turbine speed sensor circuit no signal. Au7o has documented this code across 1 Buick model — most commonly on Enclave. This transmission code means the computer is receiving no signal from the input/turbine speed sensor, which measures how fast the transmission's input shaft (turbine side of the torque converter) is spinning. The computer compares this against engine and output speeds to control shifts and torque converter lockup. With no signal, it can't manage shifting properly, so you may get harsh or erratic shifts, no torque converter lockup, or limp mode. It is a no-signal electrical fault pointing to the sensor or its circuit. Typical repair costs on Buick range from $2,500 to $4,500, depending on the specific model and root cause.
Common Causes of P0717
- •Failed input/turbine speed sensor
- •Open or shorted wiring to the sensor
- •Corroded or loose sensor connector
- •Damaged reluctor/tone ring on the input shaft
- •Metal debris on the sensor tip from internal wear
- •Poor ground or reference voltage to the sensor
- •Faulty transmission control module (less common)
P0717 on Buick by Model
Buick Enclave(1 issue)
- 6T70/6T75 Transmission Wave Plate Failure2008-2012
First-generation Enclaves (2008-2017) use the 6T70/6T75 6-speed automatic, whose stamped-steel 35R wave plate can crack at the teeth after enough shift cycles. When it fractures, the transmission abruptly loses 3rd, 5th, and reverse gears, and debris can damage the valve body, drums, and torque converter. Failure typically occurs in higher-mileage 2008-2012 builds.
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What does P0717 mean on Buick?▼
P0717 stands for "Input/Turbine Speed Sensor Circuit No Signal." This transmission code means the computer is receiving no signal from the input/turbine speed sensor, which measures how fast the transmission's input shaft (turbine side of the torque converter) is spinning. The computer compares this against engine and output speeds to control shifts and torque converter lockup. With no signal, it can't manage shifting properly, so you may get harsh or erratic shifts, no torque converter lockup, or limp mode. It is a no-signal electrical fault pointing to the sensor or its circuit. On Buick specifically, this code is documented across 1 model.
What causes P0717 on Buick vehicles?▼
Common causes on Buick: Failed input/turbine speed sensor, Open or shorted wiring to the sensor, Corroded or loose sensor connector, Damaged reluctor/tone ring on the input shaft, Metal debris on the sensor tip from internal wear. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0717 on a Buick?▼
Repair costs on Buick range from $2,500 to $4,500, depending on the specific model and root cause.
Which Buick models have P0717 documented?▼
Au7o has documented P0717 on 1 Buick model: Enclave.