Case 580SR Service Manual page 1000

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172
POWERSHIFT SPEED SENSOR TEST
Disconnect from control valve and fit the 12 pin con-
nector from special tool.
Connect the power socket to the 12 V socket.
Install the probes from a multimeter into the tool.
Raise the unit off the ground and observe voltage
(V1). Turn the rear wheel which in turn rotates the
transmission output shaft, observe the second volt-
age (V2).
Test procedure
Pin
No.
A 0.6 - 0.8
The special tool connects to pin A speed sensor plus
output, and pin J speed sensor/temperature sensor
ground.
Description
A Speed sensor +
B FWD request
C Disconnect request input
D Speedometer output
E Diagnostics link input
F Analogue Input 1
G Analogue Input 0
H -
J -
K PWM solenoid supply
L Solenoid 3
M PWM 1
N Range solenoid 27
P Forward solenoid
R Solenoid 2
S Solenoid 1
T VCS
U Ground
V Battery +
SECTION 55 - ELECTRICAL SYSTEM
V1 V2
1.3 - 1.5
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A
B M
C
N L
P U
K
D V
R T
S
E J
H
F
G
F28394
F28397
F28398