Service Manual

ELECTRICAL SYSTEMS
6 - 18 260 Series Tractor Service Manual
Location
The KeyChoice™ Reverse Operating Module is
located under the front hood, on the inside of the
firewall (Figure 257).
Figure 257
MVC-224X
How It Works
The KeyChoice™ Reverse Operating System Module
is made up of several components, such as diodes and
relays. When it is connected in the circuit, voltage is
applied to certain terminals of the KeyChoice™
Reverse Operating System module from the PTO
switch, reverse switch, and the override switch, which
energizes certain relays in the module. If voltage is not
applied to proper terminals on the KeyChoice™
Reverse Operating System Module, the electric PTO
clutch will stop.
Testing
The KeyChoice™ Reverse Operating System Module
must be removed from the wiring harness. Using a
multimeter check the following (Figure 258):
Figure 258
NMIR Module
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