P0751: Shift solenoid A poor performance or stuck off
Shift solenoid A isn’t doing its job or is stuck off, so the gearbox doesn’t change gear properly. Dirt or the solenoid itself are common.
| Code | P0751 |
|---|---|
| System | Engine and transmission |
| Group | P07xx, Transmission |
| Type | Generic: it means the same on every make |
| Can you keep driving? | With care |
What P0751 means
Shift solenoids route fluid inside the automatic gearbox to move from one gear to the next. Exactly which job solenoid A does is up to each manufacturer. The control unit gives the command but doesn’t see the expected result in the gearbox: the valve responds poorly or stays off.
Most common causes
- Low gearbox fluid
- Old fluid or debris that makes the valves stick
- Shift solenoid A moving sluggishly or not opening
- Valve body with dirty or worn passages
- Internal pressure leak from worn seals or gaskets
Symptoms
- Engine warning light on
- Gearbox won’t select a gear or skips gears
- Stays in one fixed gear (limp mode)
- Harsh or late gear changes
Can you drive with P0751?
With care You can drive, but the gearbox often sticks in a single gear, so the car feels weak or over-revs. Drive calmly to a garage and avoid fast roads if it won’t change up.
Open the bonnetthe in-depth explanation
How to check it
If the gearbox has a dipstick, check the fluid level and condition with the engine warm. With a scanner, see whether other gearbox codes are stored too: together they help the garage tell a fluid problem from a valve problem.
How to read and clear P0751 with Final OBD
Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see P0751 with its description and whether it’s confirmed, pending or permanent.
This code is usually stored by the gearbox control unit. If the car reports it over standard OBD, you read it for nothing with FREE; to read it straight from the gearbox control unit, with its description and clearing, you need PRO.
Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before an inspection. It’s all in how to read and clear fault codes and in inspections and OBD.
Similar codes
- P074D The gearbox cannot engage gear 5
- P074E The gearbox cannot engage gear 6
- P074F The gearbox cannot engage gear 7
- P0750 Shift solenoid A fault
- P0752 Shift solenoid A stuck on
- P0753 Shift solenoid A electrical fault
- P0754 The gearbox solenoid A fails now and then
- P0755 Shift solenoid B fault
- P0700 Transmission control system: fault detected
- P0701 Transmission control system: range/performance
- P0702 Transmission control system: electrical fault
- P0703 Torque converter/brake switch B: circuit fault
What does code P0751 mean?
Shift solenoids route fluid inside the automatic gearbox to move from one gear to the next. Exactly which job solenoid A does is up to each manufacturer. The control unit gives the command but doesn’t see the expected result in the gearbox: the valve responds poorly or stays off.
Can you drive with P0751?
You can drive, but the gearbox often sticks in a single gear, so the car feels weak or over-revs. Drive calmly to a garage and avoid fast roads if it won’t change up.
How do you clear P0751?
With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, P0751 comes back.
Read it on your car
Final OBD reads and clears engine faults through standard OBD for free, each one explained in plain English. With PRO it also reads the faults of every control unit, each make’s own codes included, and clears them in all of them.
