P0775 code meaning
Pressure Control Solenoid B
Powertrain system Generic code P07xx codes Check engine light
What P0775 means
Pressure control solenoids are current-controlled proportional valves, and what B and C mean depends on the design: on GM's clutch-to-clutch automatics they are the pressure valves of clutches 2 and 3, on GM's CVT B is primary pulley pressure and C line pressure, on Jatco CVTs B is the secondary pressure valve, on Saab's AF40 B and C are clutch valves SLC1/SLC2. P0775 is the general code for valve B. No manufacturer document available to us uses it; the trade journal MOTOR names it as a performance code of line pressure valve B on Ford's 5R55, set together with ratio codes after a broken overdrive servo. Sub-codes for performance, stuck on, electrical and intermittent follow (P0776–P0779).
P0775 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 10 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0775
- Harsh or slipping shifts
- Limp mode
- Check engine light
Common causes of P0775
- Most likelyValve body or pressure valve B worn or dirty
- PossibleLine pressure wrong (load signal, main regulator)
- PossibleFluid condition
- Less likelyCircuit or coil
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Pressure control solenoidTransmission valve bodyTransmission clutchesTransmission control module
What each part of P0775 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 7 | Area: transmission. |
| 75 | The exact fault in that area. |
What to do next
- Note P0775 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0775
What does P0775 mean?
P0775 means "Pressure Control Solenoid B". Pressure control solenoids are current-controlled proportional valves, and what B and C mean depends on the design: on GM's clutch-to-clutch automatics they are the pressure valves of clutches 2 and 3, on GM's CVT B is primary pulley pressure and C line pressure, on Jatco CVTs B is the secondary pressure valve, on Saab's AF40 B and C are clutch valves SLC1/SLC2. It is a generic code, so it means the same on every make.
Is it safe to drive with P0775?
Drive gently and only to a workshop. With P0775 the car can go into limp mode (reduced power) to protect itself.
Will P0775 fail an emissions test?
Yes, it can. P0775 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0775 to fix?
Difficulty: hard. A typical repair takes 1 to 10 hours of work. This is a job for a workshop.
Will P0775 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.