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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1162 (AUTOMATIC TRANSAXLE DIAGNOSTICS (DTC P1820, 3.4l TO DTC U2105, 3.6L) - 4T65-E) >> Diagnosis >> DTC P2764 (3.6L) >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Ignition voltage is provided to the torque converter clutch pulse width modulation (TCC PWM) solenoid valve. The TCM controls the solenoid with a negative duty cycle in order to control application and release of the TCC. When the solenoid is commanded OFF, the TCM senses high voltage. When the solenoid is commanded ON, the TCM senses low voltage.

DTC P2764 sets if the TCM detects an open or short to ground in the TCC PWM solenoid valve circuit. DTC P2764 is a type B DTC.

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