100
Engine Coolant
Temperature (ECT)
Sensor
1. Connect the meter leads (selector in OHMS posi-
tion) to the sensor terminals.
2. Suspend the sensor and a thermometer in a con-
tainer 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.
3. On the ECT sensor when the temperature reaches
20° C (68° F), the meter should read approxi-
mately 2.45k ohms.
4. On the ECT sensor when the temperature reaches
50° C (122° F), the meter should read approxi-
mately 800 ohms.
5. On the ECT sensor when the temperature reaches
80° C (176° F), the meter should read approxi-
mately 318 ohms.
6. On the ECT sensor when the temperature reaches
110° C (230° F), the meter should read approxi-
mately 142 ohms.
7. If the readings are not as indicated, the sensor
must be replaced.
8. Install the sensor and tighten securely.
9. Connect the leads.
Fan Motor
The connector is the black two-prong one located above
the oil cooler/radiator.
NOTE: The ignition switch must be in the ON posi-
tion.
RESISTANCE (Fan Motor Connector)
1. Set the meter selector to the OHMS position.
2. Connect the red tester lead to the blue wire; then
connect the black tester lead to the black wire.
FI501A
3. The meter must show less than 1 ohm.
NOTE: If the meter shows more than 1 ohm of resis-
tance, troubleshoot or replace the fan motor.
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.
Power Distribution
Module (PDM)
The fuses are located in a power distribution module
under the seat. If there is any type of electrical system
failure, always check the fuses first.
NOTE: The ignition switch must be in the LIGHTS
position.
1. Remove all fuses from the distribution module.
2. Set the meter selector to the DC Voltage position.
3. Connect the black tester lead to ground.
4. Using the red tester lead, contact each end of the
fuse holder connector terminals individually.
5. The meter must show battery voltage from one
side of the connector terminal ends.
NOTE: Battery voltage will be indicated from only
one side of the fuse holder connector terminal; the
other side will show no voltage.
NOTE: When testing the HI fuse holder, the head-
light dimmer switch must be in the HI position; when
testing the LIGHTS fuse holder, the headlight dimmer
switch can be in either position.
NOTE: If the meter shows no battery voltage, trou-
bleshoot the battery, switches, distribution module,
or the main wiring harness.
! WARNING
Wear insulated gloves and safety glasses. Heated oil can
cause severe burns.
! WARNING
Care should be taken to keep clear of the fan blades.
