140
VOLTAGE (Reverse Override)
NOTE: To perform the following tests, the ignition
switch must be in the ON position and the transmis-
sion shifted into reverse gear.
1. Connect the red meter lead to the red/green wire and
the black meter lead to a suitable ground; then select
2WD on the drive select switch. The meter must
show battery voltage.
2. Depress the reverse override switch. The meter must
show near zero volts.
3. Select 4WD on the drive select switch. The meter
must show battery voltage.
4. Depress the reverse override switch. The meter must
show near zero volts.
5. If equipped, select “LOCK” on the drive select
switch. The meter must show battery voltage.
6. Depress the reverse override switch. The meter will
typically read <0.1 DC volt.
NOTE: If the voltage readings are correct and a
momentary “whirring” sound is not heard from the
front drive actuator, check voltage at the actuator
connector. If voltage readings are correct and the con-
nector and the actuator doesn’t operate, the actuator
must be replaced.
Fan Motor
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: To determine if the fan motor is good, con-
nect the red wire from the fan connector to the posi-
tive side of a 12 volt battery; then connect the black
wire from the fan connector to the negative side. The
fan should operate.
PR912A
NOTE: Fan motor resistance checks are not recom-
mended. Resistance values change with the motor
commutator position.
Lights
VOLTAGE (Headlights)
Each headlight has one HI/LO three-pin connector and
one two-pin connector for the LED lights.
NOTE: The HI/LO bulb-connector is located
toward the inside of the headlight assembly. It uses a
three-pin connector with the corresponding color
codes: white, yellow/black, and black. The LED light
and connector are located toward the outside of the
headlight assembly and use the color codes white/red
and black.
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.
4. To test LED voltage, disconnect the two-pin connec-
tor from the back of the headlight; then connect the
black tester lead to the black wire using a MaxiClip.
Connect the red tester lead to the white/red wire
(LED). The meter must show battery voltage.
VOLTAGE (Taillight)
NOTE: Perform this test at the socket end of the
taillight-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/red wire. The
meter should show battery voltage.
3. With the ignition key in the LIGHTS position, the
meter must show battery voltage.
NOTE: If battery voltage is not shown and the head-
lights are illuminated, inspect the three-wire connec-
tor in the left-rear canopy tube at the juncture of the
canopy tube and lower frame. If battery voltage is
shown on the meter, replace the bulb.
VOLTAGE (Brakelight)
NOTE: Perform this test at the socket end of the
taillight-brakelight harness (pigtail). The ignition
switch must be in the ON position.
1. Set the meter selector to the DC Voltage position.
This component can be tested using the CATT II. Utilize
the Test screen.
! WARNING
Care should be taken to keep clear of the fan blades.
Summary of Contents for HDX 500 2017
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