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Home >> Cadillac >> 2007 >> Escalade RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 753 (Automatic Transmission - 4L80-E/4L85-E - DTC P0218 To P2771) >> DTC P0753 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2006 GMC Sierra, 2006 GMC Cab & Chassis Sierra, 2006 Chevrolet Silverado, and 2006 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The 1-2 shift solenoid (SS) valve controls the fluid flow action on the 1-2 and the 3-4 shift valves. The 1-2 SS valve is a normally open exhaust valve that is used with the 2-3 SS valve to allow for four different shifting combinations. The 1-2 SS valve attaches to the control valve body within the transmission. The ignition voltage goes directly to the 1-2 SS valve. The powertrain control module (PCM) controls the 1-2 SS valve by providing the ground path through the 1-2 SS valve control circuit.

When the PCM detects a continuous open or short in the 1-2 SS valve circuit or the 1-2 SS valve, then DTC P0753 sets. DTC P0753 is a type C DTC. For California emissions vehicles, and vehicles under 8,600 GVW, DTC P0753 is a type B DTC.

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