Toro Greensmaster eTriFlex 3360 Service Manual page 172

Testing the Cutting Unit Motors (continued)
Electrical System: Testing the Electrical Components
• If – – – appears, the controller is not communicating on the CAN bus.
Voltage must be present at the controller logic circuit before communication
can occur on the CAN bus.
If voltage is not present at the logic circuit, the logic circuit is damaged.
The circuit wiring should be checked for corrosion or damage and
cleaned or repaired as necessary.
If logic voltage is present at the controller, and CAN bus communication
is suspect, the CAN bus circuit is damaged. The CAN bus wiring
should be checked for corrosion or damage and cleaned or repaired
as necessary. The cutting unit motor controller CAN bus transceiver
can also be tested if necessary; refer to
the CAN bus (page
• If 00.0V is present at the cutting unit motor power bus circuit, the circuit is
damaged. The circuit wiring should be checked and repaired as necessary.
6. Unplug the 48V battery disconnect; refer to
5–9).
7. Locate and disconnect the cutting unit motor cable electrical connections
at the machine wire harness for the motor being tested. Check the motor
and the harness connector for damage or corrosion and clean or repair as
necessary.
8. Use a multimeter (ohms setting) and measure the resistance between the
ground terminal (blank wire) and the location ID terminal (T1 = blue wire,
T2 = yellow wire, T3 = tan wire). Resistance should be approximately 18.8
K-ohms.
g289535
1. Cutting unit motor connector – 2 pin
2. Ground terminal
9. If cutting unit motor removal, installation, disassembly or assembly is
required; refer to Cutting Unit Motor (page
10. If the motor tests correctly and a problem still exits, check the cutting unit
motor circuit wiring; refer to
11. After testing is complete, secure the cutting unit motor wire harness
connectors and connect the 48V battery disconnect.
5–32).
Figure 70
3. Cutting unit motor connector – 4 pin
4. Location ID terminal
5–137).
Appendix A (page
Page 5–68
Testing Devices (Nodes) on
48V Battery Disconnect (page
A–1).
Greensmaster® eTriFlex 3360 and 3370
19239SL Rev B