Cub Cadet RZT-S Zero Electric - Manual (Page 93)

Electrical System
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8. With the charger door closed, measure the voltage
from pin 7 (- probe) of the 12 pin connector of the
VCM to pins 2 and 4 of the seat switch connector.
NOTE: Removing the seat switch will make it easier to
close the seat switch for testing.
9. With the charger door closed and the seat switch
closed, measure the voltage from pin 7 (- probe) of
the 12 pin connector of the VCM to pin 1 and 3 of the
seat switch connector. See Figure 5.61.
• If the DMM reads 4 - 5 volts, at all four locations
the seat switch and its power supply circuit are
functioning properly.
• If the DMM reads 0 volts at pin 2 and 4, the brown
wire (or red wire with a white trace, depending on
production date) has a fault.
• If one of pins 2 and 4 has 4 - 5 volts, but the other
does not there is a fault in the jumper from pin 2 to
pin 4.
• If the DMM reads 0 volts at pin 1 and/or 3, the seat
switch is faulty.
Charger door switch
The charger door switch receives 4 - 5 volts through a red wire with a white trace. A brown wire carries the volt-
age from the N.O. contact of the charger door switch to pin 2 of the VCM’s 16 pin connector.
If the charger door is open the VCM will sense an open circuit voltage and shut down the mower.
NOTE: If the mower jarred enough for the charger door to bounce, the mower will shut down and display an
“unplug the charger” message.
If a charger door fault appears:
1. Inspect the charger door. See Figure 5.62.
• The plunger is present and moves freely.
• The door closes fully.
2. Remove the left pod by following the procedures
described in Chapter 2: Body.
NOTE: Only lift the pod enough to gain access to the char-
ger door switch.
NOTE: Do not disconnect the battery pack while removing
the pod.
Figure 5.61
1
2
3
4
Figure 5.62
Plunger