Toro Groundsmaster 5900 Series Service Manual page 399

Testing (continued)
Groundsmaster ® 5900 & 5910
16227SL Rev B
4. Use a multimeter to check that the resistance values of the resistor module
as below (Figure 278).
Test Point 1
Motor Pin
Motor Pin
Motor Pin
5. Replace the resistor module if it fails the test.
6. If the resistor module 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 wire harness connectors to the
resistor module terminals
Test Point 2
Pin 1
Pin 2
Pin 3
A–1).
(Figure 278) and install the sunshade.
Page 6–137
Expected Reading
Less than 9 ohms
Less than 6 ohms
Less than 3 ohms
Electrical System: Component Testing