Torque Converter Clutch Pressure Control Solenoid Circuit High
The P2763 code indicates that the Powertrain Control Module (PCM) has detected a high voltage condition in the control circuit of the Torque Converter Clutch (TCC) pressure control solenoid. This solenoid regulates hydraulic pressure to engage and disengage the torque converter clutch, which locks the engine and transmission together for improved fuel economy. A high voltage reading suggests a short to power, open circuit, or faulty solenoid, leading to improper clutch operation.
01. Most Common Causes
- Faulty TCC pressure control solenoid
- Short to power in the solenoid circuit
- Open or damaged wiring/connectors
- Failed PCM (rare)
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Torque converter clutch not engaging or disengaging
- Poor fuel economy
- Transmission slipping or shuddering
03. Step-by-Step Diagnosis
Step 1: Use a scan tool to retrieve freeze frame data and verify the code.
Step 2: Inspect the TCC solenoid wiring and connectors for damage, corrosion, or shorts.
Step 3: Measure resistance of the TCC solenoid; compare to manufacturer specs (typically 10-30 ohms).
Step 4: Check for voltage at the solenoid connector with key on; should be battery voltage. If not, repair open circuit.
Step 5: If wiring and solenoid are okay, test the PCM output; replace PCM if necessary.
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 the torque converter may not lock, causing increased transmission wear and reduced fuel economy. In some cases, the transmission may overheat.
How much does it cost to fix?▼
Repair costs typically range from $150 to $400, including parts and labor. A solenoid replacement is around $100-$200, plus diagnostic fees.