P0717: Input/Turbine Speed Sensor Circuit No Signal
7 vehicles · 5 makes · $150-$4,500 repair
Most Reported On
P0717 is an OBD-II diagnostic trouble code meaning “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. This code is most commonly reported on 2003-2012 Mercedes-Benz E-Class (E320, E350, E500, E550), 2008-2019 GMC Sierra 3500HD, and 2018-2025 Chevrolet Traverse, plus 4 other vehicles, with repair costs ranging from $150 to $4,500.
Common Causes
Typical Repair Cost
Based on 7 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P0717, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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Vehicles Affected (7)
FAQ
What does P0717 mean?
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.
What are the most common causes of P0717?
The most common causes of P0717 are: 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). The specific cause varies by vehicle.
How much does it cost to fix P0717?
Repair costs for P0717 range from $150 to $4,500, depending on the vehicle and root cause.
Which vehicles are affected by P0717?
Au7o has documented P0717 across 7 vehicle models from 5 manufacturers: Buick, Chevrolet, GMC, Mercedes-Benz, Pontiac.
Sources (12)
- manufacturerECU Testing: Mercedes 7G-Tronic TCM conductor plate failure
- mediaMB Medic: 722.9 7G-Tronic Valve Body & Conductor Plate Must Read
- manufacturerUpFix: 722.9 Transmission Conductor Plate Repair Could Save $1000s
- mediaThe Autopian: Heres What A Conductor Plate Is And Why It Kills So Many Mercedes Vehicles
- videoYouTube - Diagnosing Allison 1000 Transmission TCM Issues on GMC Sierra 3500HD
- ForumReddit r/MechanicAdvice Thread Discussing 9T65 Transmission Shudder on Chevrolet Traverse
- articleMercedes 722.6 5G Transmission Valve Body Conductor Plate Replacement - YouCanic
- Forum722.6 Conductor Plate Failure - PeachParts Mercedes-Benz Forum
- articleBuick Enclave Transmission Problems: Known Failures and Fixes - Cherish Your Car
- articleBuick Enclave Transmission Problems & Cost (6T75E) - Transmission Repair Cost Guide
- ForumGeneral Info on the 6T75 Transmission - EnclaveForum.net
- articlePontiac Aztek Transmission Problems & Cost | 4T65E
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.