Case 580SR Service Manual page 999

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POWERSHIFT CONTROL UNIT
The control unit receives the signals switching ON or
OFF the solenoids and allowing the desired gears to
be selected. A variable current solenoid receives a
reducing signal from the EGS controlling modulator.
The control unit is equipped with a combined tem-
perature and speed sensor which sends signals
back to the EGS.
Test Procedure
Test between pin indicated in the left hand column
and either pin H or M as detailed in the table below.
Pin
No.
A
B
C
D
E
F
G
K
* A Speed sensor plus output 24
B Forward Lo/Hi solenoid
C Forward/neutral solenoid
D Range 1/2 solenoid
E FWD solenoid
F Reverse neutral solenoid
G Direction modulation solenoid
K Range modulation solenoid
L Transmission temperature out ground
M Control valve common plus
SECTION 55 - ELECTRICAL SYSTEM
DESCRIPTION
H M
27.5 Ω
-
27.5 Ω
-
27.5 Ω
-
27.5 Ω
-
27.5 Ω
-
27.5 Ω
-
14 Ω
-
31 Ω
-
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