Transmission Pressure Control Solenoid Intermittent
The P2717 code indicates an intermittent fault in the transmission pressure control solenoid circuit. This solenoid regulates hydraulic pressure within the automatic transmission to control shift timing and firmness. An intermittent signal suggests a loose connection, damaged wiring, or a failing solenoid that works sporadically, leading to unpredictable transmission behavior.
1. Most Common Causes
- Loose, corroded, or damaged terminals in the 'D' solenoid connector
- Intermittent short to ground, short to battery, or open circuit in the 'D' solenoid control wiring
- Internally defective pressure control solenoid 'D' (intermittent coil hotspot or mechanical failure)
- Faulty transmission control module (TCM) internal solenoid driver
- Low or contaminated transmission fluid affecting hydraulic actuation
2. Symptoms You Will Notice
- Check Engine Light on
- Erratic or harsh shifting
- Transmission slipping or delayed engagement
- Reduced fuel economy
3. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Inspect transmission fluid level and condition.
Step 3: Visually check wiring and connectors for damage or corrosion.
Step 4: Test solenoid resistance and power/ground circuits with a multimeter.
Step 5: Perform a transmission pressure test to confirm solenoid operation.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended. Driving with an intermittent solenoid can cause unpredictable shifting, leading to transmission damage or unsafe driving conditions.
How much does it cost to fix?▼
Repair costs typically range from $150 to $400, depending on whether the solenoid is replaced individually or as part of a larger repair, and labor rates.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.