Ignition Switch; Speed Sensor - Arctic Cat 450 XC 2011 Service Manual

2. The meter reading must be within specification.
 NOTE: If the meter does not read as specified,
replace the spark plug cap.

Speed Sensor

1. Set the meter selector to the DC Voltage position.
2. With appropriate needle adapters on the meter leads,
connect the red tester lead to the voltage lead (V);
then connect the black tester lead to the ground lead
(G).
3. Turn the ignition switch to the ON position.
4. The meter must show greater than 5.0 volts.
5. Leave the black tester lead connected; then connect
the red tester lead to the signal lead pin (S).
6. Slowly move the ATV forward or backward; the
meter must show 0 and >5 volts alternately.
 NOTE: If the sensor tests are within specifications,
the speedometer/LCD gauge must be replaced (see
Steering/Frame).
To replace a speed sensor, use the following procedure.
1. Disconnect the three-wire connector from the speed
sensor; then remove the cap screw securing the sen-
sor to the sensor housing.
2. Remove the sensor from the sensor housing account-
ing for an O-ring.
3. Install the new speed sensor into the housing with
new O-ring lightly coated with multi-purpose grease;
then secure the sensor with the cap screw (threads
coated with blue Loctite #242). Tighten securely.
AR603D

Ignition Switch

The ignition switch harness connects to the switch with a
three-pin connector. To access the connector, remove the
radiator/electrical access panel.
VOLTAGE
KC248A
 NOTE: Perform this test on the main harness con-
nector.
1. Set the meter selector to the DC Voltage position.
2. Connect the red meter lead to the red/white wire;
then connect the black meter lead to ground.
3. Meter must show battery voltage.
 NOTE: If the meter shows no battery voltage, trou-
bleshoot the battery or the main wiring harness.
RESISTANCE
 NOTE: Perform this test on the switch harness
using the following procedure.
Manual
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