Circuit Description

WARNING: This page is about a different variant/trim than selected.

The shift solenoid valve (SLT) controls the transmission line pressure for smooth transmission operation based on signal from the throttle position sensor and the vehicle speed sensor. The engine control module (ECM) adjusts the duty ratio of the SLT solenoid valve to control hydraulic line pressure coming from the primary regulator valve. Appropriate line pressure assures smooth shifting with varying engine outputs.

In any forward position, when the difference between the revolutions of the turbine, intermediate and output shaft exceeds the specified value (varies with intermediate, output speed) determined by the ECM, the ECM illuminates the MIL and stores the DTC.

When shift solenoid valve SLT remains ON, the oil pressure goes down and the clutch engagement force decreases.

IMPORTANT: If driving under these conditions continues, the clutch will burn out and the vehicle will no longer be drivable.