Rmc module plug test (manual pto) – Cub Cadet SLTX1000 Series User Manual
Page 153
Electrical System
147
RMC module plug test (manual PTO)
1.
Disconnect the molded 8-pin plug from the RMC
module. See Figure 7.7.
2.
Looking at the plug head-on, it will be configured as
shown in the diagram: There will be 8 female pin
terminals. When probed they should yield the
results described in the following sections.
See Figure 7.8.
3.
Top left rounded-shape: Yellow wire
•
Behavior: When the terminal is probed (yellow
wire), there should be continuity to ground
when the seat is empty.
•
Circuitry: The yellow wire leads to the seat
safety switch, where it finds a path to ground
when the seat is empty.
NOTE: The yellow wire also branches off to the
PTO switch. If the PTO is “on” and the key
switch is turned to the “off” position, the yel-
low wire will get a ground through the key switch.
•
Interpretation: If behavior is correct, the seat
safety circuit is good. If there is continuity to
ground when the seat is occupied, the switch
may be inoperative, the PTO is on while the key
switch is off or there may be a short to ground
in the wire leading to it. If there is not continuity
to ground when the seat is empty, the switch
may be inoperative or there may be an open
condition in the wire leading to it.
4.
Top right middle square-shape: There is a red wire
with black trace between yellow wire and the green
wire. This wire provides the module with input from
the reverse switch.
•
Behavior: When the tractor is in reverse, this
terminal should have continuity to ground.
•
Circuitry: This wire runs directly to the reverse
safety switch.
•
Interpretation: Continuity to ground when the tractor is not in reverse would indicate a short to ground.
This could take the form of a chafed wire contacting ground or a shorted reverse safety switch.
Lack of continuity to ground would indicate:
• A broken or disconnected wire leading to the reverse safety switch
• A switch that is not closing because of physical damage or corrosion.
• Loss of ground to the reverse switch.
5.
Top right rounded-shape and the bottom right square shape: are green wires.
•
Behavior: The green wires should always have continuity to ground.
•
Circuitry: The green wires leads to ground.
Figure 7.7
white
Red
Green
Black/white
Yellow
5('
5EN
<EN
<ZK
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:+,7(
1$
1$
Figure 7.8
Empty
1
4
5
8