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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 102 (Automatic Transmission Diagnosis - 4L60-E) >> Diagnostic Tests >> DTC P0752: 1-2 Shift Solenoid Stuck On >> Circuit Description

Circuit Description

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The 1-2 shift solenoid valve is a normally open exhaust valve used in conjunction with 2-3 shift solenoid valve to allow 4 different shifting combinations. Solenoid is attached to control valve body. DTC P0751 is set if PCM detects a 1-1-4-4 shift pattern.

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