Toro Groundmaster Series Service Manual page 246

Testing the Diode Assemblies (continued)
Electrical System: Testing the Electrical Components
Multimeter Multimeter
Red (+) Lead Black (-) Lead
DIODE DIODE
TERMINAL A TERMINAL B
DIODE DIODE
TERMINAL B TERMINAL A
4. If testing determines the diode is faulty, replace the diode.
5. If the diode tests correctly and a circuit problem still exists, check the wire
harnesses; refer to
6. After testing is complete, make sure the diode is fully installed into the
connector and secured to the wire harness.
Resistance
VERY LOW
VERY HIGH
Appendix A (page A–1).
Page 6–54 Groundsmaster ® 3200, 3300 and 3310
19240SL Rev A