Chrysler laser 1990 Technical Information Manual page 296

Shift control
The valve is actuated by the line pressure that has
been regulated by the shift control valve to change
the line pressure flow when .shifting is performed
between 1st and 2nd gears.
It also controls the hydraulic pressure passage to
the low:-?everse brake when in the R (reverse) gear.
In 1st Gear
The 1-2 shift valve is pushed to the left and held
there by the spring force when no pressure is
directed to the valve.
In the "L" range, the line pressure from the
pressure control valve is directed to the low-reverse
brake by way of the No. 10 and No. 17
AUTOMATIC TRANSAXLE
valve
Line
ports.
T
O
valve
From pressure
control valve
(at "L" range)
pressure
From pressure
control valve
directed to the l-2 shift valve through the No.6
port, the pressure acts on the left end of the valve
causing it to move to the right, and the No. 11 pofl
communicating with the kickdown servo is opened
The line pressure coming from the pressure controi
valve through the No. 10 line is then directed to the
In 2nd. 3rd and 4th gears, the 1-2 shift valve is
always held pushed to the right.
1
To
apply side
valve
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