P0775 Code: Pressure Control Solenoid B
🟠 Moderate severity · drivable
Drivable, but shifts may be harsh or slip because the transmission can't control pressure properly.
What P0775 means
Pressure control solenoid B helps the transmission fine-tune line pressure during shifts. This code means the solenoid circuit is faulty, open, or reading out of range. Without it, shifts can become harsh, soft, or delayed.
Symptoms
- Check engine light is on
- Harsh or delayed shifts
- Transmission slipping
- Reduced fuel economy
Common causes
- most common: Faulty pressure control solenoid B
- common: Damaged wiring or loose connector in the solenoid circuit
- common: Low or dirty transmission fluid
- less common: Faulty transmission control module
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Check and top up the transmission fluid level and condition | Yes | $20–60 |
| Inspect and repair the solenoid wiring and connector | Yes | $10–50 |
| Replace the pressure control solenoid B | Mechanic | $150–500 |
Frequently asked questions
Can I drive with a P0775 code?
Yes, but shifting may feel rough or the transmission may slip. Get it diagnosed soon to avoid internal damage.
What is the most common cause of P0775?
A faulty pressure control solenoid B, often from damaged wiring or a loose connector. Dirty fluid can also be involved.
How much does it cost to fix a P0775?
Usually $150–$500 for the solenoid, or less if it turns out to be only a wiring repair.
Related codes
P0777
P0777 Code: Pressure Control Solenoid B Stuck On
P0748P0748 Code: Pressure Control Solenoid A Electrical
P0700P0700 Code: Transmission Control System Malfunction
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.