P0776: Pressure control solenoid B: performance problem or stuck off
The automatic gearbox finds that pressure control solenoid B is not regulating as it should. Dirty or low fluid and the solenoid itself are typical.
| Code | P0776 |
|---|---|
| System | Engine and transmission |
| Group | P07xx, Transmission |
| Type | Generic: it means the same on every make |
| Can you keep driving? | With care |
What P0776 means
Pressure control solenoids set how firmly the gearbox clutches clamp during a shift. If solenoid B does not respond, shifts can become harsh or slip. Which part of the gearbox solenoid B regulates is defined by each manufacturer.
Most common causes
- Low transmission fluid level or degraded fluid
- Blocked transmission filter
- Damaged or corroded solenoid connector or wiring
- Pressure control solenoid B sticking or failed
- Worn valve body
Symptoms
- Engine or gearbox warning light on
- Harsh or clunky shifts
- Gearbox feels like it slips during shifts
- Limp mode with only a few gears available
Can you drive with P0776?
With care You can drive carefully, but wrong pressure makes the clutches slip and wear. Have it looked at soon.
Open the bonnetthe in-depth explanation
How to check it
If your scanner shows gearbox data, watch the pressure or current commanded to solenoid B during shifts. Also check the fluid level and condition.
How to read and clear P0776 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 P0776 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
- P0772 The gearbox solenoid E has got stuck
- P0773 Gearbox shift solenoid E has an electrical fault
- P0774 The gearbox solenoid E fails now and then
- P0775 The pressure control solenoid B is not working properly
- P0777 Pressure control solenoid B stuck on
- P0778 Pressure control solenoid B has an electrical fault
- P0779 The pressure control solenoid B fails now and then
- P077A The output speed sensor has lost its direction signal
- 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 P0776 mean?
Pressure control solenoids set how firmly the gearbox clutches clamp during a shift. If solenoid B does not respond, shifts can become harsh or slip. Which part of the gearbox solenoid B regulates is defined by each manufacturer.
Can you drive with P0776?
You can drive carefully, but wrong pressure makes the clutches slip and wear. Have it looked at soon.
How do you clear P0776?
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, P0776 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.
