Torque Converter Clutch Solenoid Circuit Performance/Stuck Off
The P2757 code indicates that the Powertrain Control Module (PCM) has detected a malfunction in the Torque Converter Clutch (TCC) pressure control solenoid circuit. This solenoid regulates hydraulic pressure to engage the TCC, locking the torque converter for improved fuel economy. The code is set when the PCM commands the solenoid on but detects that the clutch is not engaging (stuck off) or the circuit performance is out of expected range. Common causes include low transmission fluid, a faulty solenoid, wiring issues, or internal transmission problems.
01. Most Common Causes
- Low or dirty transmission fluid
- Faulty TCC pressure control solenoid
- Wiring or connector issues in the solenoid circuit
- Internal transmission mechanical failure
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Poor fuel economy
- Transmission slipping or shuddering at highway speeds
- Delayed or harsh shifting
03. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Check transmission fluid level and condition; top off or replace if necessary.
Step 3: Inspect wiring and connectors for damage, corrosion, or loose connections.
Step 4: Test the TCC solenoid resistance and operation using a multimeter and scan tool.
Step 5: Perform a pressure test to verify hydraulic circuit integrity.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as it can cause transmission overheating and further damage. Limited local driving may be possible, but immediate diagnosis is advised.
How much does it cost to fix?▼
Repair costs range from $150 to $400, depending on the cause. A solenoid replacement typically costs $200-$300, while wiring repairs or fluid changes are less expensive.