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9850068 R01 - 2020-2021 RZR PRO XP / XP 4 Service Manual

12.31

FAN CONTROL CIRCUIT BYPASS TEST

1. Disconnect harness from coolant temperature

sensor on the engine cylinder head (see Engine

Coolant Temperature Sensor (ECT) Overview

outlined in this chapter).

2. With the transmission in Park, start the engine. After

a few seconds, the fan should start running and the

“Check Engine” indicator should display on the

instrument cluster. This indicates all other

components are working properly.

3. If the fan does not run or runs slowly, check the fan

motor wiring, ground, motor condition, circuit breaker

and mechanical relay for proper operation. Repair or

replace as necessary. If the fan runs with the sensor

harness disconnected, but will not turn on when the

engine is hot, check the coolant temperature sensor

and connector terminals.

COOLING FAN REPLACEMENT

REMOVAL

1. Remove front fascia. See Front Fascia Removal page

11.17.

2. Drain cooling system.

3. Remove four electrical connectors from the voltage

regulators.

4. Remove two fasteners

securing voltage regulator

bracket and remove bracket/voltage regulators as an

assembly.

5. Remove six push pins

and remove the radiator

shroud.

6. Remove two large hoses and one vent line from the

charge air radiator and remove charge air radiator

from the vehicle.

ELECTRICAL

Polaris RZR PRO XP 2021 User Manual

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