P2764 Possible Causes
- Faulty torque converter clutch pressure control solenoid
- Torque converter clutch pressure control solenoid circuit open or shorted
- Poor electrical connection in torque converter clutch control solenoid circuit
- Clogged valve body oil passages
How to Fix Code P2764
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
When is the Code Detected?
When the Transmission Control Module (TCM) detects a continuous open or short to ground in the Torque Converter Clutch (TCC) Pulse Width Modulated (PWM) solenoid circuit, code P2764 is set.
Possible Symptoms
- Illuminated MIL (Malfunction Indicator Light)
- Transmission shifting issues
P2764 Meaning
The Transmission Control Module (TCM) supplies voltage to the Torque Converter Clutch (TCC) Pulse Width Modulated (PWM) solenoid via the High Side Driver 2 (HSD2). The TCM controls the solenoid on/off times by providing ground through the Output Driver Module (ODM). The TCM uses a PWM duty cycle to control TCC apply and release. When the solenoid is commanded OFF, the TCM detects high voltage. When the solenoid is commanded ON, the TCM detects low voltage.