Cub Cadet Fun Runner - Manual (Page 83)

5-15
MOTOR CONTACTOR TEST PROCEDURES
STEP DETAILS
Make vehicle safe. Ignition switch off and key removed.
Parking brake set.
Turn off master power switch. Switch behind seat.
Remove utility bed (or storage compartment). Whichever is installed.
Remove canopy assembly. If installed, refer to Section 4.
Remove rear body section. Refer to Section 4.
Disconnect large controller (positive motor
output) cable from contactor. Shield terminal end of cable so it cannot touch
you or anything else (cover with tape or other
suitable insulation).
Check voltage on contactor activation
terminals (Figure 5-9).
Note: 12 volts is applied to the activation
terminals initially to activate the contactor.
Then voltage is pulsed to hold contactor
closed. The pulsed voltage will read about
5 volts with a digital voltmeter.
Note: If the voltage at the activation
terminals continues to read 12 volts, the
coil circuit of the contactor is most likely
“open.”
Turn on master power switch.
Turn ignition switch to a run position.
Check voltage on activation terminals. Should
be about 5 volts.
If voltage is present and contactor “clicks”
closed, check resistance between motor and
controller power terminals on contactor.
Should be less than 1 ohm. (See Figure 5-10)
If no voltage present, check continuity of
activation wires to large twist lock connector at
controller.
Orange wire to pin 11
White wire to pin 12
If no continuity, repair or replace harness as
needed.
If continuity is good on both wires, controller
may be bad if no other faults are present.