Toro Groundsmaster 4300-D Service Manual page 290

Testing the Parking Brake Switch (continued)
Electrical System: Testing the Electrical Components
7. With the key switch still in the R
parking brake and check the LED on the cable end of the parking brake
switch. The LED should not be illuminated when the parking brake is set.
8. If the parking brake switch LED did not function correctly, do the following:
A. Ensure that the parking brake switch is properly adjusted; refer to
Adjusting the Parking Brake Switch (page
switch and return to step 6.
B. Ensure that the key switch is in the O
parking brake switch connector from the platform wire harness.
C. Use a multimeter (ohms setting), check that the platform wire harness
connector terminal for black wire is closed (continuity) to the ground.
D. Turn key switch to the R
with a multimeter that the platform wire harness connector terminal for
pink wire has system voltage (12 VDC) present.
E. If the black wire is closed to the ground, the pink wire has system voltage
present, and the switch LED did not function, replace the parking brake
switch. Adjust the switch after installation; refer to
Brake Switch (page
9. If the parking brake switch testing is correct and a circuit problem still exists,
check the platform wire harness; refer to the Electrical Schematic and Wire
Harness Drawings/Diagrams in
10. After you complete the parking brake switch testing, ensure that the switch
connector is plugged into platform wire harness.
position (do not start the engine), set the
UN
FF
position (do not start the engine) and check
UN
5–43).
Appendix A (page
Page 5–66
5–43). If necessary, adjust the
position and disconnect the
Adjusting the Parking
A–1).
Groundsmaster
16226SL Rev C
® 4300-D