Can-Bus Terminator Resistor - Toro Greensmaster eFlex 1800 Service Manual

CAN-bus Terminator Resistor

Testing the CAN-bus Terminator Resistor
Electrical System: Testing the Electrical Components
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1. CAN-bus terminator resistor
The system communication between the electrical components on the
Greensmaster eFlex machines is accomplished on a CAN-bus communication
system. The 2 specially designed, twisted cables form the bus for the networks
used on the eFlex. These wires provide the data pathways between the
machine components. At the ends of the twisted pair of bus cables are 120
ohm terminator resistors
The resistors plug into the wire harness in the following areas:
1. On the main wire harness near the InfoCenter under the handle console
cover.
2. On the battery wire harness near the lithium battery pack connection.
Note: Refer to the Electrical Schematic and Wire Harness Drawings in
A (page A–1)—Foldout Drawings for additional information on the terminator
resistor locations and wire connections.
The terminator resistors at the ends of the bus cables are required
for proper electrical system operation.
1. The CAN-bus terminator resistor
multimeter (ohms setting). Locate the CAN-bus terminator resistor and
remove the cable tie that secures the resistor to the wire harness. Unplug the
resistor from the wire harness for testing.
2. Use a digital multimeter (ohms setting) to measure the resistance value for
the CAN-bus terminator resistor. There should be 120 ohms resistance
between the terminals A and B. The terminal C is not used.
3. If the testing determines that the CAN-bus terminator resistor is damaged,
replace the CAN-bus terminator resistor.
4. After you complete the testing, ensure that the CAN-bus terminator resistor
is fully installed into the wire harness connector and secured to the wire
harness with cable tie.
Figure 116
2. Keyway
IMPORTANT
(Figure 116) can be tested using a digital
Page 5–66 Greensmaster ® eFlex 1800, 2100 and 2120
12189SL Rev E
Appendix