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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1474 (Automatic Transmission, 4L60-E/4L65-E Diagnosis (DTC P0748 (5.3L) To DTC P2771)) >> Diagnostic Information and Procedures >> DTC P0757 (5.3L) >> Circuit Description

Circuit Description

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The 2-3 shift solenoid (SS) valve controls the fluid flow acting on the 2-3 shift valves. The 2-3 SS valve is a normally-open exhaust valve that is used with the 1-2 SS valve in order to allow four different shifting combinations.

When the PCM detects a 1-2-2-1 shift pattern, then DTC P0757 sets. DTC P0757 is a type A DTC.