Diagnostic Instructions

DTC Descriptors

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

Circuit	Short to Ground	Open/High Resistance	Short to Voltage	Signal Performance
TCC Pressure Control Solenoid	P2764	P2763	P2763	P2762
TCC Pressure Control Solenoid Side Driver 1	P0658	P0659	P0659	P2762

Typical Scan Tool Data

TCC PC Solenoid

Circuit	Grounded	Open	Shorted to Voltage
Operating Conditions: Engine running, normal operating temperature Parameter Normal Range: OK
High Side Driver 1 CKT Status	Open/Short to GND	Open/Short to GND	Short to Volts

Circuit/System Description

The torque converter clutch (TCC) pressure control solenoid is part of the control solenoid (w/body and TCM) valve assembly and is not serviced separately. The TCM supplies 12 volts to the TCC pressure control solenoid through the high side driver 2 circuit. The TCM controls the TCC solenoid through the TCC solenoid control circuit. The normally low TCC pressure control solenoid flows fluid to the TCC when commanded ON and exhausts fluid when commanded OFF. The TCC solenoid regulates the transmission fluid pressure to apply the TCC.

Conditions for Running the DTC

P2762

P2763

P2764

Conditions for Setting the DTC

P2762

The TCM detects an invalid voltage in the TCC pressure control solenoid circuit for 4.4 seconds or greater in a 5.0 second sample.

P2763

The TCM detects high voltage on the TCC pressure control solenoid control circuit for 4.4 seconds or greater in a 5.0 second sample.

P2764

The TCM detects low voltage on the TCC pressure control solenoid control circuit for 4.4 seconds or greater in a 5.0 second sample.

Action Taken When the DTC Sets

P2762

DTC P2762 is a Type C DTC.

P2763 or P2764

Conditions for Clearing the DIC/DTC

Diagnostic Aids

When attempting to set solenoid electrical DTCs, ensure the TCM is warmed up and the transmission is operated in 2nd gear long enough to ensure a 3°C (5°F) increase in TCM substrate temperature. This will place the TCM under the optimal conditions to test solenoid electrical DTCs.

Reference Information

Schematic Reference

Automatic Transmission Controls Schematics

Connector End View Reference

Component Connector End Views

Electrical Information Reference

Description and Operation

Transmission Component and System Description

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Testing

1. Ensure the transmission fluid temperature is between 50-80°C (122-176°F).
2. Operate the vehicle in 2nd gear long enough to ensure at least a 3°C (5°F) rise in TCM temperature, then operate the vehicle to ensure TCC engagement for 5 seconds.
3. Observe the scan tool data parameter High Side Driver 2 CKT Status, the parameter should display OK.

⇒	If the parameter displays Open, Short to Volts, Short to GND or if the DTC resets, perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection .

⇒	If no concerns are found during the inspection, replace the control solenoid (w/body and TCM) valve assembly.

4. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.