Arctic Cat WILDCAT X Service Manual page 104

CRANKSHAFT POSITION SENSOR
1. Set the meter selector to the OHMS position.
2. Connect the red tester lead to the brown wire; then
connect the black tester lead to the white wire. The
meter reading must be within specification.

NOTE: The battery must be at full charge for these
tests.
3. Set the meter selector to the AC Voltage position.
4. Connect the red tester lead to the brown wire; then
connect the black tester lead to the white wire.
5. Crank the engine over using the electric starter.
6. The meter reading must be within specification.
OXYGEN (O2) SENSOR
The sensor is located in the exhaust pipe.

NOTE: The ambient temperature of the engine and
in the intake and exhaust system must be at room
temperature (approximately 68° F) when performing
this test or an incorrect reading will occur.
1. On the left rear side of the vehicle, unplug the con-
nector.
WC897A
2. On the sensor side of connector, connect the black (nega-
tive) test lead to one white wire pin; then connect the red
(positive) test lead to the other white wire pin.
3. With the meter in the OHMS position, the reading
should be between 6.7-10.1 ohms.

NOTE: If the meter does not read as specified,
replace sensor.
TEMPERATURE/MANIFOLD ABSOLUTE
PRESSURE (TMAP) SENSOR
Component data can be retrieved using the CATT II. Uti-
lize the Sensor Data screen.

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: The ambient temperature of the engine and
in the intake and exhaust system must be at room
temperature (approximately 68° F) when performing
this test or an incorrect reading will occur.
1. Disconnect the sensor connector from the sensor
located on top of the throttle body.
2. Select DC Voltage on the tester and turn the ignition
switch to the ON position.
3. Connect the black tester lead to the pink/black wire
and the red tester lead to the orange/blue 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 sensor to the harness; then using Maxi-
Clips, connect the red tester lead to the brown/white
wire and the black tester lead to the pink/black wire.
With the engine running at idle speed, the meter
should read approximately 2.5 DC volts.
5. Connect the red tester lead to the green/red wire.
With the engine at idle and at room temperature
(approximately 60° F), the meter should read
approximately 2.9 DC volts.

NOTE: If the meter does not read as specified,
replace the sensor.
ENGINE COOLANT TEMPERATURE
(ECT) SENSOR
Component data can be retrieved using the CATT II. Uti-
lize the Sensor Data screen.

NOTE: Preliminary checks may be performed on
this component using the diagnostic mode on the LCD
gauge (see EFI Diagnostic System in this section).
1. Connect the meter leads (selector in OHMS position)
to the sensor terminals.
2. Suspend the sensor and a thermometer in a container
of cooking oil; then heat the oil.

NOTE: Neither the sensor nor the thermometer
should be allowed to touch the bottom of the con-
tainer or inaccurate readings will occur. Use wire
holders to suspend the sensor and thermometer.
! WARNING
Wear insulated gloves and safety glasses. Heated oil
can cause severe burns.
3. On the ECT sensor when the temperature reaches
40° C (104° F), the meter should read approximately
1136 ohms.
4. On the ECT sensor when the temperature reaches
100° C (212° F), the meter should read approxi-
mately 155 ohms.
5. If the readings are not as indicated, the sensor must
be replaced.
6. Install the sensor and tighten securely.
7. Connect the leads.
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