Transmission Pressure Control Solenoid 'D' Electrical Fault
Code P2716 indicates an electrical malfunction in the pressure control solenoid 'D' (often the TCC solenoid or a shift solenoid) within the automatic transmission. The Powertrain Control Module (PCM) detects an open, short, or excessive resistance in the solenoid circuit. This can cause improper hydraulic pressure regulation, leading to harsh shifts, slipping, or transmission overheating. Common causes include damaged wiring, corroded connectors, a failed solenoid, or low transmission fluid.
1. Most Common Causes
- Faulty pressure control solenoid 'D' or damaged solenoid coil
- Corroded, loose, or damaged wiring or connectors in the solenoid circuit
- Short to ground or short to voltage in the solenoid harness
- Open circuit in the solenoid wiring
- Solenoid internal resistance out of specification
- Failed transmission control module (TCM) or powertrain control module (PCM)
2. Symptoms You Will Notice
- Check Engine Light illuminated
- Harsh or erratic shifting
- Transmission slipping or delayed engagement
- Reduced fuel economy
- Transmission overheating
3. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Inspect transmission fluid level and condition; top off or replace if necessary.
Step 3: Visually check wiring and connectors for damage, corrosion, or loose pins.
Step 4: Test solenoid resistance with a multimeter (typically 5-20 ohms); compare to specs.
Step 5: Check for power and ground at solenoid connector with key on; repair as needed.
Step 6: If wiring and fluid are OK, replace the pressure control solenoid 'D'.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended. Driving with P2716 can cause harsh shifting, transmission slipping, and potential internal damage. Have it diagnosed and repaired promptly.
How much does it cost to fix?▼
Repair costs typically range from $200 to $600, including parts and labor. Solenoid replacement is often $150-$300, plus diagnostic fees.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.