Circuit/System Description

The shift solenoid (SS) valve 2 is part of the control solenoid (w/body and TCM) valve assembly and is not serviced separately. The SS valve 2 is a normally closed (NC) solenoid valve and controls fluid to the hybrid low, 1-2 clutch boost valve assembly and related clutches. During this diagnostic test, intrusive actions are taken by the transmission control module (TCM) to test the SS valve 2 to see if the valve is stuck OFF. When in EVT 1, gear 1, or gear 2, if the correct gear ratio is not achieved in a predetermined period of time, the TCM commands gear 3 and if gear 3 ratio is attained this indicates a stuck OFF SS valve 2 and the DTC will set.