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Home >> Saturn >> 2000 >> LS Automatic >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transaxle Diagnosis - 4T40-E & 4T45-E >> Diagnostic Tests >> DTC P0753: 1-2 Shift Solenoid Electrical >> Circuit Description

Circuit Description

The 1-2 shift solenoid is used to control fluid flow acting on 1-2 shift valve. Solenoid is a normally-open valve that is used in conjunction with 2-3 shift solenoid, to allow 4 different shifting combinations. See SHIFT SOLENOID COMBINATIONS  table. Solenoid is attached to control valve body. Ignition voltage is supplied directly to solenoid through fused circuit. PCM commands solenoid on or off by providing a ground path. DTC P0753 will set when PCM detects a continuous open, short to ground or short to voltage in 1-2 shift solenoid circuit.

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