P0776
PowertrainTransmission Solenoidmoderate severityPressure Control Solenoid B Performance or Stuck Off
What P0776 Means
The transmission pressure control solenoid B is not responding correctly or is stuck off. This causes incorrect hydraulic pressure during shifts.
Symptoms
- Slipping transmission
- Erratic or harsh shifts
- Reduced power
Common Causes
- Stuck pressure control solenoid B
- Low transmission fluid
- Dirty fluid clogging valve body
- Faulty valve body
Diagnostic Steps
- Check transmission fluid level and quality
- Scan for additional codes
- Inspect and test solenoid B operation
- Inspect valve body and replace as needed
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Budget handheld~$40
ANCEL AD410 →
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Serious DIY~$100
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Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
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