Pressure Control Solenoid "D" Intermittent
P2717 indicates the transmission control module has detected an intermittent fault in Pressure Control Solenoid D, which regulates hydraulic pressure during gear shifts. This solenoid controls transmission fluid pressure, and when it malfunctions intermittently, the transmission cannot shift smoothly or may enter limp mode to prevent damage.
What You Might Notice
- Check Engine Light illuminated
- Vehicle enters limp mode or reduced power mode
- Transmission slips or hesitates during shifting
- Transmission overheating
- Decreased fuel economy
Most Common Causes
- 1
Defective Pressure Control Solenoid D
The solenoid itself may be sticking, corroded, or failing intermittently. This is the primary component controlled by this code and the most common failure point.
- 2
Dirty or contaminated transmission fluid
Degraded fluid with particles or sludge can prevent the solenoid from sealing properly and cause intermittent operation. Fluid contamination restricts normal solenoid function.
- 3
Corroded, damaged, or loose electrical connector
Poor electrical connections at the solenoid or wiring harness cause intermittent signal loss. Corrosion or loose pins prevent consistent power delivery to the solenoid.
- 4
Dirty transmission filter or restricted hydraulic passages
A clogged filter or debris-blocked passages reduce hydraulic pressure and prevent the solenoid from operating reliably. This creates intermittent pressure control failures.
How to Diagnose It
- 1
Check Defective Pressure Control Solenoid D — The solenoid itself may be sticking, corroded, or failing intermittently. This is the primary component controlled by this code and the most common failure point.
- 2
Check Dirty or contaminated transmission fluid — Degraded fluid with particles or sludge can prevent the solenoid from sealing properly and cause intermittent operation. Fluid contamination restricts normal solenoid function.
- 3
Check Corroded, damaged, or loose electrical connector — Poor electrical connections at the solenoid or wiring harness cause intermittent signal loss. Corrosion or loose pins prevent consistent power delivery to the solenoid.
- 4
Check Dirty transmission filter or restricted hydraulic passages — A clogged filter or debris-blocked passages reduce hydraulic pressure and prevent the solenoid from operating reliably. This creates intermittent pressure control failures.
How to Fix It
- 1
Replace transmission fluid and filter
Drain the transmission, replace the filter, and refill with fresh transmission fluid to remove contaminants that prevent proper solenoid operation. This is the least invasive repair and often resolves intermittent issues.
- 2
Inspect and clean electrical connector
Locate the Pressure Control Solenoid D connector, inspect for corrosion or loose pins, clean with electrical contact cleaner, and reseat the connection firmly. Check for damaged wiring in the harness leading to the solenoid.
- 3
Replace Pressure Control Solenoid D
If fluid and connector are clean, remove and replace the defective solenoid. Verify the replacement solenoid is the correct part for your vehicle and reinstall with proper torque specifications.
- 4
Inspect transmission valve body and hydraulic passages
If solenoid replacement does not resolve the code, the transmission may require internal inspection for debris, sludge, or mechanical damage to the valve body or passages that restrict fluid flow.
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