Solenoid Circuit: Overview

WARNING: This page is about a different car, the 2002 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.

The LA4A-EL transaxle has hydraulic circuits to control the scheduling of shifts. The PCM has control of four solenoids (SS1, SS2, 3-2 T/CSS, and TCC) to do the following things:
- Move shift valves to provide transaxle operation in 1st, 2nd, third and fourth gear.
- Control the timing of a 3-2 shift.
- Control the application and release of the coast clutch.
- Control the release, application and modulation of the torque converter clutch.

Fig 1: Solenoid Circuits (1 Range/1st Gear)

Courtesy of MAZDA MOTORS CORP.