Toro Greensmaster eFlex 1800 Diagnostic Manual page 36

Step 4.1: Check for 5 Vdc to the speed-control position sensor
potentiometer.
Perform the following steps with a multimeter, or use the InfoCenter Diagnostic display; refer to
Screen Icons (page
1. Rotate the key switch to the O
at the speed-control position sensor potentiometer.
2. Rotate the key switch to the S
release the key switch to the R
3. Measure the voltage between the main wire harness connector P05, pin C, and the main wire harness P04
connector, pin B
4. Rotate the key switch to the O
speed-control position sensor potentiometer.
1
4
3
Component Locations of the Speed-Control Potentiometer, and the Toro Electronic Controller (TEC-2401)
1. InfoCenter
2. Speed-control potentiometer
3. EZ-Turn (Slow-in-Turn) switch
4. Work light switch (optional)
Main Harness P05 Connector and Speed-Control Potentiometer Pin Identification
16).
position, and then disconnect the main wire harness connector P05
FF
position and hold it there until the InfoCenter LCD display lights up, then
TART
position.
UN
(Figure 43). The normal voltage range is 4.91 to 5.09 Vdc.
position, and then connect the main wire harness P05 connector at the
FF
2
5
8
Figure 41
5. TEC-2401
6. Fuse block
7. Main contactor
8. Battery wire harness P01 connector
Figure 42
36
InfoCenter Diagnostics
(Figure 41),
6
7
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