Shift Solenoid: Description and Operation

Description

Shift solenoid No.1, No.2, No.3 No.4 (S1, S2, S3, S4)
4 shift solenoids are installed directly in V/B.
The solenoids operates of ON and OFF by the control signal from TCU. Combinations of 4 solenoids, S1, S2, S3 and S4, changes gear ranges (1st to 6th).

Shift solenoid SR (SR)
Shift solenoid (SR) is installed directly in V/B.
The solenoid operates of ON and OFF by the control signal from TCU. Changes C4 clutch and B1 brake.

Line pressure control solenoid (SLT)
SLT controls linear throttle pressure by control signal from TCU and line pressure for clutched and brakes to reduce shift shock.




Lock-up control solenoid (SLU)
SLU controls linear SLU pressure by control signal from TCU and hydraulic pressure for L-up clutch to reduce shift shock.




Clutch pressure control solenoid No.1, No.2 (SL1, SL2)
SL1, SL2 controls linear pressure by control signal from TCU and controls C3 clutch directly and B2 brake directly under 5th to 6th.