2010 Cadillac CTS Sedan AWD V6-3.6L Page 2040
DTC P2762
- Torque Converter Clutch (TCC) Pressure Control Solenoid System Performance
DTC P2763
- Torque Converter Clutch (TCC) Pressure Control Solenoid Control Circuit High Voltage
DTC P2764
- Torque Converter Clutch (TCC) Pressure Control Solenoid Control Circuit Low Voltage
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The torque converter clutch (TCC) pressure control solenoid is part of the control solenoid valve assembly which has no serviceable parts. The
normally low TCC PC solenoid regulates oil pressure to the TCC regulator valve and TCC control valve. Increasing TCC PC solenoid oil pressure
increases oil pressure to the torque converter to apply the clutch. The TCM varies the current to the TCC PC solenoid through a low side driver.
Increasing current to the TCC PC solenoid increase oil pressure by closing OFF the solenoid exhaust port. Decreasing current to the TCC PC
solenoid decreases oil pressure by opening up the solenoid exhaust port. The TCC PC solenoid power is supplied by the TCM through a high side
driver (HSD). The HSD protects the circuit and components from excessive current flow. If excessive current flow is detected, the HSD will turn
OFF. When the fault is corrected, the HSD will reset.
Conditions for Running the DTC
P2762
* DTC P2762 has not set this ignition cycle.
* The engine speed is 500 RPM or greater for 5 seconds.
* The ignition voltage is 8.6 volts or greater.
* Transmission fluid temperature is 140掳C (284掳F) or greater.
P2763
* DTCs P2763, P2764, P0658, or P0659 have not set this ignition cycle.
* The engine speed is 500 RPM or greater for 5 seconds.
* The ignition voltage is 8.6 volts or greater.
* The high side driver is enabled.
P2764
* DTC P2764 has not set this ignition cycle.
* The engine speed is 500 RPM or greater for 5 seconds.
* The ignition voltage is 8.6 volts or greater.
* The high side driver is enabled.
* Transmission fluid temperature is 140掳C (284掳F) or greater.
Conditions for Setting the DTC
P2762
The TCM detects an internal electrical performance malfunction of the TCC PC solenoid control circuit where the measured TCC PC solenoid
current does not equal the commanded TCC PC solenoid for 5 seconds.
