Cruze

DTC P2762, P2763, or P2764

The torque converter clutch (TCC) pressure control (PC) solenoid is part of the control solenoid valve assembly which has no serviceable components. 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 transmission control module (TCM) varies the current to the TCC PC solenoid through a low side driver. Increasing current to the TCC PC solenoid increases 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.

P2762

P2763

P2764

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.

P2763

The TCM detects an open/high resistance or short-circuit to voltage on the TCC PC solenoid control circuit for 5 seconds.

P2764

The TCM detects a short-circuit to ground on the TCC PC solenoid control circuit for 5 seconds.

P2762

DTC P2762 is a Type C DTC.

P2763

P2764

Schematic Reference

Automatic Transmission Controls Schematics

Connector End View Reference

Description and Operation

Electrical Information Reference

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

Special Tools

DT-48616-10 Adapter Harness

For equivalent regional tools, refer to Special Tools .

1. Operate the vehicle in 2nd gear long enough to ensure at least a 3°C (5°F) rise in TCM temperature.
2. Operate the vehicle in drive range and ensure TCC is commanded ON for 1 minute. Verify with a scan tool the following parameters display OK.

•	TCC Pressure Control Solenoid Valve Performance Test Status

•	TCC Pressure Control Solenoid Valve Control Circuit Low Voltage Test Status

•	TCC Pressure Control Solenoid Valve Control Circuit High Voltage Test Status

3. After performing the above steps, verify that the DTC does not reset by operating the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions you observe from the Freeze Frame/Failure Records data. If the vehicle passes the Circuit/System Verification procedure, then STOP. Do not perform the Circuit/System Testing or Component Testing as this may result in an unnecessary part replacement. Refer to Testing for Intermittent Conditions and Poor Connections .

Note: You must perform the Circuit/System Verification first.

1. Ignition OFF, remove the Q8 control solenoid valve assembly. Refer to Control Solenoid Valve and Transmission Control Module Assembly Replacement .
2. Perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection .
3. Place the Q8 control solenoid valve assembly on a clean work surface near the transmission assembly.
4. Connect the DT-48616-10 harness between the vehicle wire harness X1 14-way transmission electrical connector, and the Q8 control solenoid valve assembly electrical connector.
5. Ignition ON, verify with a scan tool the following test status parameters display OK.

•	TCC Pressure Control Solenoid Valve Performance Test Status

•	TCC Pressure Control Solenoid Valve Control Circuit Low Voltage Test Status

•	TCC Pressure Control Solenoid Valve Control Circuit High Voltage Test Status

⇒	If any test status parameter displays Fault or Malfunction, replace the Q8 control solenoid valve assembly.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.