Cub Cadet Fun Runner - Manual (Page 87)

5-19
SPEED SENSOR TEST PROCEDURES
STEP DETAILS
Remove utility bed. If equipped.
Remove trunk basket. Lifts out.
Test speed sensor using test tool.
Note: This test can be done with a DMM,
but it is more easily done with an analog
voltmeter.
Test speed sensor without test tool.
See Figure 5-11.
Note: This test is only to be used when test
tool is not available.
Jack and support rear of vehicle with tires off
floor. Plug tool to the speed sensor. Connect
voltmeter to tool. Turn switch to “on.”
Slightly move the tire until voltage reads
approximately 9 volts. Slightly move the tire
more until the voltage reads near zero.
If the tire can be moved so that the voltage
reads 9 volts and near zero volts, speed sensor
is operating properly.
Note: If speed sensor is to be tested while
out of the vehicle, connect tool and put a
piece of ferrite metal in front of sensor pick
up and then remove. With metal in place,
the voltage should be near zero, and with
metal removed, voltage should be
approximately 9 volts.
Unplug speed sensor.
Connect a 1K-ohm resistor across pin 2 (black
wire) and pin 3 (brown wire) of sensor plug.
Connect a battery across pin 1 (blue wire) and
pin 3 (brown wire).
(Use a 9 volt transistor battery or a 12 volt
cranking battery)
Measure voltage between pin 1 and pin 2.
Move tire slightly to get a voltage reading that
is approximately equal to the battery voltage.
Then slightly move tire to a point where voltage
is near zero.
If voltage can be changed from the battery
voltage to near zero volts the sensor is good.