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 Low Voltage

DTC P2764:  Torque Converter Clutch (TCC) Pressure Control Solenoid Control Circuit High Voltage

Diagnostic Fault Information

Circuit	Short to Ground	Open/High Resistance	Short to Voltage	Signal Performance
TCC Pressure Control Solenoid	P2763	P2764	P2764	P2762
TCC Pressure Control Solenoid Side Driver 2	P1833	P1833	P1834	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
TCC PC Sol. CKT Status	Short to GND	Open/Short to Volts	Open/Short to Volts
High Side Driver 2 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 the TCC.

Conditions for Running the DTC

P2762

Start the ignition voltage, run the engine.

P2763

P2764

Conditions for Setting the DTC

P2762

The TCM detects an internal electrical performance malfunction of the TCC pressure control solenoid circuit and the actual TCC pressure does not equal the commanded TCC pressure for 4.4 seconds in the 5 seconds sample time.

P2763

The TCM detects an internal low voltage electrical malfunction of the converter clutch PC solenoid 4 control circuit for 4.4 seconds in the 5 seconds sample time.

P2764

The TCM detects an internal high voltage electrical malfunction of the converter clutch PC solenoid 4 control circuit for 4.4 seconds in the 5 seconds sample time.

Action Taken When the DTC Sets

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

DTC Type Reference

Electrical Information Reference

Scan Tool Reference

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 TCC PC Sol. 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.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.