5-4
4. On the coolant temperature switch, allow the
water to cool, and when the temperature is
within a temperature range of 107-113° C
(225-235° F), the meter should show an open
circuit.
5. On the cooling fan switch when the temperature
reaches 81-99° C (175-213° F), the meter should
show a closed circuit.
6. On the cooling fan switch, allow the water to
cool, and when the temperature is within a tem-
perature range of 67-82° C (150-184° F), the
meter should show an open circuit.
7. If the readings are not as indicated, the switch
must be replaced.
8. Install the switch and tighten securely.
9. Connect the switch leads.
Fan Motor
NOTE: The ignition switch must be in the ON
position.
VOLTAGE
(Main Harness Connector to Fan
Motor)
1. Set the meter selector to the DC Voltage posi-
tion.
2. Connect the red tester lead to the black/red wire
(the black 2-prong at the fan motor); then con-
nect the black tester lead to ground.
3. The meter must show battery voltage.
NOTE: If the meter shows no battery voltage,
troubleshoot the battery, fuse, motor, or the main
wiring harness.
NOTE: If the meter shows battery voltage, the
main wiring harness is good. The connector
should be checked for resistance.
RESISTANCE
(Fan Motor Connector)
1. Set the meter selector to the OHMS position.
2. Connect the red tester lead to the red wire; then
connect the black tester lead to the black wire.
PR183A
3. The meter must show less than 1 ohm.
NOTE: If the meter shows more than 1 ohm of
resistance, troubleshoot or replace the switch/
component, the connector, or the switch wiring
harness.
NOTE: To determine if the fan motor is good,
connect the red wire from the fan connector to a 12
volt DC power supply; then connect the black wire
from the fan connector to ground. The fan should
operate.
Power Distribution
Module
The fuses are located in a power distribution module
under the driver’s seat.
If there is any type of electrical system failure,
always check the fuses first.
1411-576
1. Remove all fuses from the power distribution
module.
! CAUTION
Always disconnect the battery when performing
resistance tests to avoid damaging the multimeter.
! CAUTION
Care should be taken to keep clear of the fan blades.
Prowler/XT
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