Toro Groundsmaster 4500-D Series Service Manual page 350

Testing (continued)
Electrical System: Component Testing
g276050
1. Pin 1 (Violet wire)
2. Pin 2 (Brown wire)
3. Pin 3 (Orange wire)
4. Use a multimeter to check that the resistance values of the resistor module
as below (Figure 228).
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
7. After you complete the testing, connect the wire harness connectors to the
resistor module terminals
6
4
3
2
1
Figure 228
4. Pin 4 (Not used)
5. Motor pin
6. Resistor module
Test Point 2
Pin 1
Pin 2
Pin 3
Appendix A (page
(Figure 228) and install the sunshade.
Page 6–68
5
2
1
Expected Reading
Less than 9 ohms
Less than 6 ohms
Less than 3 ohms
A–1).
Groundsmaster ® 4500-D/4700-D
19245SL Rev A