Speed Sensor; Electronic Power Steering (Eps) - Arctic Cat WILDCAT/X Service Manual

3. Connect the black tester lead to the gray/white wire and
the red tester lead to the green/black wire. The meter
should read 4.5-5.5 DC volts. If the meter does not read
as specified, check the ECM connector or wiring.
4. Connect the MAP/IAT to the harness; then using Maxi-
Clips, connect the red tester lead to the pink/black wire
and the black tester lead to the gray/white wire. With the
engine running at idle speed, the meter should read
approximately 2.5 DC volts (MAP sensor signal).
5. Connect the red tester lead to the green/black wire.
With the engine at idle and at room temperature
(approximately 60° F), the meter should read approxi-
mately 2.9 DC volts.
 NOTE: If the meter does not read as specified,
replace the sensor.

Speed Sensor

 NOTE: Preliminary checks may be performed on this
component using the diagnostic mode on the LCD
gauge (see EFI Diagnostic System in this section).
 NOTE: Prior to testing the speed sensor, inspect the
three-wire connector on the speed sensor for con-
tamination, broken pins, and/or corrosion.
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 approximately 6 DC volts.
5. Leave the black tester lead connected; then connect
the red tester lead to the signal lead pin (S).
6. Slowly move the vehicle forward or backward; the meter
must show 0 and approximately 6 DC volts alternately.
 NOTE: If the sensor tests are within specifications,
the LCD gauge must be replaced (see Steering/
Frame/Controls).
To replace a speed sensor, use the following procedure.
112
1. Disconnect the three-wire connector from the speed sensor
harness or from the speed sensor; then remove the Allen-
head cap screw securing the sensor 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 Allen-head cap screw (threads
coated with blue Loctite #242). Tighten securely.
Electronic Power
Steering (EPS)
The EPS system is an electro-mechanical device that utilizes
12 volt DC power to drive a motor linked to the steering
shaft to assist the driver when rotating the steering wheel.
Driver steering inputs are detected by a torque-sensing
PR279A
transducer assembly within the EPS housing. These inputs
are converted to electronic signals by the transducer and
control circuitry to tell the motor which way to drive the
steering shaft. When no steering input (pressure on the
steering wheel) is detected, no torque signal is generated,
and no steering assist is provided by the motor.
The EPS system is battery-system powered; therefore, the
battery must be in good condition and fully charged.
Power delivery and overload protection are provided by an
EPS relay and 30-amp fuse, located under the seat in the
Power Distribution Module (PDM).
If a system malfunction occurs, a diagnostic trouble code
(DTC) will be displayed on the LCD gauge. The following
is a list DTC's and possible conditions.
CD070
CD071