Toro Greensmaster eFlex 1800 Diagnostic Manual page 61

Step 5.2: Use a multimeter to measure the resistance between the main wire
harness P37 connector, pins A and B.
The reading should be infinite (open). Refer to
Note: If the reading is not infinite (open), verify that all 6 items listed in Step
connected will cause the reading in this step to be wrong.
Pass
The reading was good. Go to Step 5.3.
Fail The reading was not good. Repair or replace worn or damaged parts as required. Go to
Returning the Equipment to Service (page 19)
Figure 62
CAN Bus Connectors Identification
Figure 58.
61
5.1 are disconnected. Any 1 of them being
and follow the steps listed.