P0751
Shift Solenoid A Performance/Stuck Off
Transmission / shift control
Generic OBD-II
Medium
What it means
P0751 means shift solenoid "A" is either performing outside its expected range or stuck in the off position, so the transmission can't route hydraulic pressure to make a specific gear change. You may feel poor, delayed, or missing shifts, and the transmission can drop into limp mode to protect itself.
Medium
Can I keep driving? Usually drivable but you may lose a gear or drop into limp mode with harsh shifting — fine to reach a shop, but don't put off the repair.
Common symptoms
What you'll notice
- Poor, delayed, or missing gear changes
- Transmission slipping or flaring between shifts
- Erratic or unpredictable shifting
- Limp mode (stuck in one gear)
- Check-engine light on
Common causes
Most likely first
- Failed or stuck-off shift solenoid ALikely
- Damaged wiring or a poor connector in the solenoid circuitCommon
- Low transmission fluid levelCommon
- Dirty or contaminated fluid clogging the solenoid or valve bodyLess often
- Failed transmission control module (TCM)Less often
How to diagnose & fix
Work through it in order
- Scan for codes and read freeze-frame data to confirm the fault.
- Check transmission fluid level and condition — top up or service if low, dirty, or burnt.
- Inspect the shift solenoid A wiring and connector for damage or corrosion.
- Test the solenoid's resistance and function against specification.
- If the solenoid and circuit check out, inspect the valve body; replace the TCM only as a last resort. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0751?+
You can usually drive it to a shop, but with the solenoid stuck off the transmission may not shift correctly or may enter limp mode, so avoid long trips.
Can I just clear P0751?+
It will clear, but comes back within a few drive cycles unless the solenoid, wiring, or fluid problem is repaired.
Related codes
Often seen with P0751
Read & clear P0751 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX