P0751: Shift Solenoid A Performance/Stuck Off
59 vehicles · 20 makes · $5-$8,000 repair
Most Reported On
P0751 is an OBD-II diagnostic trouble code meaning “Shift Solenoid A Performance/Stuck Off.” This code means the transmission control module commanded Shift Solenoid A (sometimes called Shift Solenoid 1) but the transmission did not respond properly, with the solenoid acting as though it is stuck 'off.' Shift solenoids are electrically operated valves that direct hydraulic fluid pressure to engage gears, so when one underperforms the transmission may shift harshly, slip, or fail to change gears at the right time. The computer sets this code when the measured gear ratio or shift behavior does not match the commanded state. It generally indicates a hydraulic or performance issue with the solenoid or the fluid circuit it controls inside the automatic transmission. This code is most commonly reported on 2015-2023 Ford Mustang (EcoBoost, GT, Bullitt, Mach 1), 1999-2004 Honda Odyssey, and 2024-2025 Mazda CX-90, plus 56 other vehicles, with repair costs ranging from $5 to $8,000.
Common Causes
Typical Repair Cost
Based on 60 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P0751, 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 (59)
10-Speed Transmission Wheel Lock-Up (10L80)
6-Speed Automatic Transmission Turbine Shaft Fracture
4L60E Automatic Transmission Failure
6-Speed Automatic Rough Shifting and Delayed Engagement
6T40 Transmission Shudder and Harsh Shifts
4T60E Automatic Transmission Failure
4T65-E Transmission Failure and Hard Shifts
9-Speed Automatic Transmission Shudder
42LE Automatic Transmission Failure
Shifter Clip Failure - Vehicle Stuck in Park
42LE Automatic Transmission Failure
Hybrid Transmission Wiring Harness Short (PHEV)
46RE/47RE Automatic Transmission Failure
47RE/48RE Automatic Transmission Failure Behind Cummins Diesel
42LE/42RLE Automatic Transmission Failure
Automatic Transmission Solenoid Pack Failure
Automatic Transmission Overdrive Failure (A518/46RH/46RE)
W5A580 (NAG1) 5-Speed Transmission Water Contamination
A413/A604 Automatic Transmission Failure
Transmission Fluid Expulsion and Fire Risk - Recall
MT82 Manual Transmission Grinding and Shifting Issues
Power Transfer Unit (PTU) Fluid Leak and Failure - AWD Models
7-Speed Manual Transmission Grinding/Scraping Noise
CD4E Automatic Transmission Failure
8F35 Transmission Shudder/Buck/Jerk Below 35 mph and Output Carrier Bearing Wear (Early 2022 Builds)
CD4E Automatic Transmission Failure
AX4S/AX4N Automatic Transmission Failure
9-Speed Automatic Transmission Rough Shifting
Transmission Overheating / Control Module Failure
Manual Transmission Clutch Issues (JL)
Manual Transmission Clutch Overheating / Fire Risk
Automatic Transmission Stalling / Auto-Park Engagement
Manual Transmission Grinding/Notchy Shifts
8-Speed Transmission Hesitation/Jerking
Manual Transmission Throw-Out Bearing Noise
iMT Rev-Match System Interference and Shift Feel
8-Speed Automatic Harsh Shifting and Torque Converter Shudder
Automatic Transmission Failure (A132L)
FAQ
What does P0751 mean?
P0751 stands for "Shift Solenoid A Performance/Stuck Off." This code means the transmission control module commanded Shift Solenoid A (sometimes called Shift Solenoid 1) but the transmission did not respond properly, with the solenoid acting as though it is stuck 'off.' Shift solenoids are electrically operated valves that direct hydraulic fluid pressure to engage gears, so when one underperforms the transmission may shift harshly, slip, or fail to change gears at the right time. The computer sets this code when the measured gear ratio or shift behavior does not match the commanded state. It generally indicates a hydraulic or performance issue with the solenoid or the fluid circuit it controls inside the automatic transmission.
What are the most common causes of P0751?
The most common causes of P0751 are: Stuck or failed Shift Solenoid A, Low, dirty, or degraded transmission fluid, Clogged solenoid screen or valve body passages, Sticking or worn valve body components, Wiring or connector problem at the solenoid, Internal transmission mechanical wear, Faulty transmission control module. The specific cause varies by vehicle.
How much does it cost to fix P0751?
Repair costs for P0751 range from $5 to $8,000, depending on the vehicle and root cause.
Which vehicles are affected by P0751?
Au7o has documented P0751 across 59 vehicle models from 20 manufacturers: Audi, Buick, Cadillac, Chevrolet, Chrysler, Dodge, Ford, GMC, Honda, Hyundai, Jeep, Kia, MINI, Mazda, Nissan, Pontiac, Subaru, Toyota, Volkswagen, Volvo.
Sources (12)
- ForumAll Ford Mustangs: 2011 Mustang Remedy MT82 Manual Transmission Cold Grind
- manufacturerD Mark Performance: What Causes Mustang GT Manual Transmission Problems?
- ForumAll Ford Mustangs: Official 2011-2014 MT-82 manual tranny shifting problems
- NHTSANHTSA Vehicle Page for 1999 Honda Odyssey - includes complaints related to transmission failure
- RecallNHTSA Recall 99V123000 - Honda Odyssey Automatic Transmission Recall (1999-2001 models)
- ForumReddit r/MechanicAdvice Thread on 2024 Mazda CX-90 8-Speed Transmission Jerky Behavior
- ForumReddit r/MechanicAdvice Discussion on 2014 Mazda3 SkyActiv Manual Clutch Judder
- ForumClass Action for the ZF9 - Honda Passport Forum
- mediaHonda 9-Speed Transmission Problems Affected Models - Lemon Law Help
- manufacturer9-Speed A/T Hard Upshift TSB - NHTSA
- media2016 Honda Pilot Transmission Jerks - CarComplaints
- ForumTOB Chirp - What You Need to Know
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.