Solenoid Valves Sl Sl Sl and SLT

In order to provide a hydraulic pressure that is proportion to current that flows to the solenoid coil, the solenoid valves SL1, SL2, SL3, and SLT linearly control the line pressure and clutch and brake engagement pressure based on the signals received from the ECM.

The solenoid valves SL1, SL2, SL3, and SLT have the same basic structure.

Sleeve

Solenoid Coil

Sleeve

Solenoid Coil

Hydraulic Pressure

Current

Current

275CA51

^ Function of Solenoid Valves •

Solenoid Valve

Function

SL1

Bi brake pressure control

SL2

Co clutch pressure control Lock-up clutch pressure control

SL3

Ci clutch pressure control

SLT

Line pressure control Secondary pressure control

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