P0715: Input/Turbine Speed Sensor Circuit Malfunction
9 vehicles · 7 makes · $150-$4,500 repair
Most Reported On
P0715 is an OBD-II diagnostic trouble code meaning “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. This code is most commonly reported on 2001-2008 Mazda Tribute, 1994-1996 Chrysler New Yorker, and 1990-1995 Chrysler LeBaron, plus 6 other vehicles, with repair costs ranging from $150 to $4,500.
Common Causes
Typical Repair Cost
Based on 9 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P0715, 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
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
Vehicles Affected (9)
FAQ
What does P0715 mean?
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.
What are the most common causes of P0715?
The most common causes of P0715 are: 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). The specific cause varies by vehicle.
How much does it cost to fix P0715?
Repair costs for P0715 range from $150 to $4,500, depending on the vehicle and root cause.
Which vehicles are affected by P0715?
Au7o has documented P0715 across 9 vehicle models from 7 manufacturers: Chrysler, Fiat, Ford, Hyundai, Lincoln, Mazda, Mercedes-Benz.
Sources (12)
- mediaFord Escape Transmission Problems & Cost - TransmissionRepairCostGuide
- ForumCD4E transmission - Escape City
- RecallFord Recalls F-150, Bronco, Mustang, Explorer, Lincoln Aviator Over Transmission Issue
- RecallFord 10R80 Automatic Transmission Recalled Over Shifting Issue
- ForumExperiencing Hard Shifting and Bumps in 2020 Lincoln Aviator Reserve - Lincoln Forums
- articleMercedes 722.6 5G Transmission Valve Body Conductor Plate Replacement - YouCanic
- articleHere's What A 'Conductor Plate' Is And Why It Kills So Many Mercedes Vehicles - The Autopian
- Forum722.6 Conductor Plate Failure - PeachParts Mercedes-Benz Forum
- article[Recall] Fiat convoca 11,6 mil unidades por problema no câmbio (Autopapo, 2019)
- articleCâmbio Dualogic/GSR: conheça os principais códigos de falha DTC (O Mecânico)
- ForumFord F-150 10-Speed Transmission Lawsuit Over Harsh Shifting - CarComplaints.com
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.