P0779
PowertrainTransmission Solenoidmoderate severityPressure Control Solenoid B Intermittent
What P0779 Means
The transmission control module detected an intermittent signal from pressure control solenoid B. Shifting may be inconsistent as the fault comes and goes.
Symptoms
- Intermittent harsh shifts
- Occasional slipping
- Check engine light flickers
Common Causes
- Loose or corroded connector
- Intermittent wiring fault
- Failing pressure control solenoid B
- Low transmission fluid
Diagnostic Steps
- Check transmission fluid level
- Wiggle test wiring and connectors
- Monitor solenoid data for dropouts
- Repair wiring or replace solenoid
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