The P0776 code in your 2022 Mazda CX-30 indicates a malfunction with pressure control solenoid B in the 6-speed SKYACTIV-Drive automatic transmission. This solenoid works alongside other pressure control solenoids to regulate hydraulic line pressure.
SKYACTIV-Drive Pressure System
Mazda's SKYACTIV-Drive uses multiple pressure control solenoids for precise hydraulic management. Solenoid B regulates a specific pressure circuit. Malfunction affects shift quality and clutch engagement force.
Common Causes of P0776
- Pressure control solenoid B internal failure
- Electrical circuit problems
- Contaminated transmission fluid
- Valve body wear or blockage
- TCM malfunction
- Wiring damage
Symptoms of Pressure Solenoid B Failure
- Shift quality changes
- Slip during certain gears
- Check engine light on
- Harsh engagement
- Delayed shifts
- Possible limp mode
Mazda Fluid Requirements
The CX-30 requires Mazda ATF FZ fluid. Using incorrect fluid affects solenoid operation and shift quality. Verify proper fluid type during any transmission diagnosis.