P0749
PowertrainTransmission Solenoidmoderate severityPressure Control Solenoid A Intermittent
What P0749 Means
The PCM detects intermittent operation of pressure control solenoid A. This produces inconsistent line pressure and unpredictable shift behavior.
Symptoms
- Occasional harsh shifts
- Intermittent slipping
- Fluctuating transmission performance
Common Causes
- Faulty pressure control solenoid
- Loose or corroded connector
- Low or dirty fluid
- Intermittent wiring fault
Diagnostic Steps
- Retrieve freeze frame data
- Check fluid level and condition
- Wiggle-test solenoid wiring and connectors
- Monitor solenoid signal during driving
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✓ Autel official store
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