Code Definition

P2764 — Torque Converter Clutch (TCC) Solenoid Control Circuit Low Voltage

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P2764

P2764 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P2764 is stored, the module has detected a signal or supply voltage lower than the expected operating range.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P2764 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

On vehicles equipped with automatic transmissions, the Transmission Control Module (TCM) or Engine Control Module (ECM) drives the torque converter clutch (TCC) solenoid and monitors its control circuit for correct voltage and current flow. The TCC solenoid controls hydraulic apply of the torque converter lockup clutch, which mechanically links the engine to the transmission to reduce slip and improve fuel economy. DTC P2764 is set when the control module detects a voltage in the TCC solenoid control circuit that is lower than the calibrated threshold while the solenoid is commanded ON or OFF,...

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