Circuit Description
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 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 in order to allow four different shifting combinations.
When the powertrain control module (PCM) detects a 1-1-4-4 gear ratio, then DTC P0752 sets. DTC P0752 is a type C DTC. For California emissions vehicles and vehicles under 8,600 GVW, DTC P0752 is a type B DTC.