Toro Greensmaster eTriFlex 3360 Service Manual page 188

Testing the CAN bus Terminator Resistors
Electrical System: Testing the Electrical Components
All 4 terminator resistors are required for proper CAN bus operation.
1. Park the machine on a level surface, lower the cutting units, set the key
switch to the O position and remove the key.
FF
2. Unplug the 48V battery disconnect; refer to
5–4). On model 04580 machines, disconnect the battery negative (-) cable
at the 12V system battery; refer to
Battery (Model 04580) (page
3. Locate the CAN bus termination resistor and unplug it from the machine
wire harness for testing. Check the resistor and the harness connector for
damage or corrosion and clean or repair as necessary.
4. Use a digital multimeter (ohms setting) and measure the resistance across
the pins of the CAN bus termination resistor. There should be 120 ohms
resistance between terminals 1 and 2.
g291761
5. If testing determines the termination resistor is faulty, replace the resistor.
6. After testing is complete, make sure the external termination resistor is fully
installed into the connector and secured to the wire harness.
7. If the resistors test correctly and a circuit problem still exists, check the
remainder of the CAN–bus; refer to
Appendix A (page
assistance.
IMPORTANT
Removing and Installing the 12V System
5–116).
Figure 78
Testing the CAN bus (page
A–1), or contact an Authorized Toro Distributor for
Page 5–90
48V Battery Disconnect (page
5–29),
Greensmaster® eTriFlex 3360 and 3370
19239SL Rev A