Toro Groundsmaster 5900 Series Service Manual page 397

Testing (continued)
Groundsmaster ® 5900 & 5910
16227SL Rev B
4. The switch terminals are identified in
multimeter (ohms setting), test the switch functions to determine if continuity
exists between only the terminals listed for each switch position. Check the
continuity between the switch terminals.
Switch Position
OFF
LOW
MEDIUM
HIGH
5. Replace the fan speed switch if testing determines that the switch is
damaged.
6. If the fan speed switch testing is correct and a circuit problem still exists,
check the wire harness; refer to Electrical Schematics and Wire Harness
Drawings in Appendix A (page
7. After you complete the testing, connect the machine wire harness to the
switch and install the sunshade.
(Figure
A–1).
Page 6–135
276). With the use of a
Closed Circuits
L+H
B+C+L
B+C+M
B+C+H
Electrical System: Component Testing