Engine Control Module (Ecm); Regulator/Rectifier; Headlights; Taillight-Brakelight - Arctic Cat Wildcat ROV 2013 Service Manual

3. Depress the starter button while observing the multi-
meter. The multimeter should drop to 0 volts and the
stater should engage.
 NOTE: If the starter engages and more than one volt
is indicated by the multimeter, replace the starter
relay. If no "click" is heard and the multimeter contin-
ues to indicate battery voltage, proceed to step 4.
4. Disconnect the two-wire plug from the starter relay;
then connect the red tester lead to the green wire and
the black tester lead to the black wire.
5. Depress the starter button and observe the multimeter.
 NOTE: If battery voltage is indicated, replace the
starter relay. If no voltage is indicated, proceed to
Power Distribution Module (PDM) check.
Engine Control Module
(ECM)
The ECM is located beneath the passenger seat.
 NOTE: The ECM is not a serviceable component. If
the unit is defective, it must be replaced.
The ECM is rarely the cause of electrical problems; how-
ever, if the ECM is suspected, substitute another model-
compatible ECM to verify the suspected one is defective.
This EFI system has a built-in feature that will only allow
an ECM of the same part number to be used in these mod-
els. Do not attempt to substitute an ECM from a different
model as the system will not allow it to start.
Error codes can be cleared by following the procedures
located in the EFI Diagnostic System sub-section in this
section.

Regulator/Rectifier

 NOTE: Preliminary checks may be performed on
this component using the diagnostic mode on the
LCD gauge (see EFI Diagnostic System in this sec-
tion).
138
The regulator/rectifier is located under the hood above the
differential. Verify all other charging system components
before the regulator/rectifier is replaced.
TESTING
1. Start engine and warm up to normal operating temper-
ature; then connect a multimeter (set at the DC Volt-
age position) to the battery as follows.
2. Connect the red tester lead to the positive battery post
and the black tester lead to the negative battery post.
3. Slowly increase RPM. The voltage should increase
with the engine RPM to a maximum of 15.5 DC volts.
 NOTE: If voltage rises above 15.5 DC volts, the reg-
ulator is faulty or a battery connection is loose or
corroded. Clean and tighten battery connections or
replace the regulator/rectifier. If voltage does not rise,
see Stator Coil/Crankshaft Position (CKP) Sensor -
Voltage in this section. If charging coil voltage is nor-
mal, replace the regulator/rectifier.
PR297A
The connectors are the two 3-prong ones secured to the
headlight assemblies (one on each side).
VOLTAGE
1. Set the meter selector to the DC Voltage position.
2. Set the light switch to the correct position for the
affected light; then connect the black tester lead to the
black wire using a MaxiClip.
3. Connect the red tester lead to the yellow/black wire
(high beam) or white wire (low beam) using a Maxi-
Clip. The meter must show battery voltage.
 NOTE: If battery voltage is not shown in any test,
inspect the LIGHTS fuse on the power distribution
module, headlight switch, ignition switch, switch con-
nectors, or wiring harness.

Taillight-Brakelight

VOLTAGE (Taillight)
 NOTE: Perform this test at the socket end of the tail-
light-brakelight harness (pigtail). The ignition switch
must be in the ON position and either high beam or
low beam selected on the light switch.
1. Set the meter selector to the DC Voltage position.
2. Connect the black tester lead to the black wire; then
connect the red tester lead to the white wire.
3. With the ignition key ON and the switch in the HI or
LOW position, the meter must show battery voltage.

Headlights