Toro Reelmaster 3100-D Series Operator's Manual page 34

1. Inputs
2. Backlap
3. High temperature
4. In seat
5. PTO switch
6. Parking brake off
Here are the logical troubleshooting steps for the
SCM device.
1. Determine the output fault you are trying to
resolve (PTO, START, or ETR).
2. Move the key switch to the O
ensure that the red power LED is illuminated.
3. Move all the input switches to ensure that all
LEDs change state.
4. Position the input devices at the appropriate
position to achieve the appropriate output.
Use the following logic chart to determine the
appropriate input condition.
5. If the specific output LED is illuminated without
the appropriate output function, check the output
harness, connections, and component. Repair
as needed.
6. If the specific output LED is not illuminated,
check both fuses.
7. If the specific output LED is not illuminated
and the inputs are in the appropriate condition,
install a new SCM and determine if the fault
disappears.
Each row (across) in the logic chart below identifies
input and output requirements for each specific
product function. The product functions are listed in
the left column. The symbols identify the specific
circuit condition including: energized to voltage,
closed to ground, and open to ground.
Figure 45
7. Neutral
8. PTO
9. Start
10. ETR
11. Power
12. Outputs
position and
N
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