Arctic Cat Prowler or Alterra no 4WD: front diff actuator
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Applies to: Arctic Cat Prowler, Alterra and other Arctic Cat 4x4s
Symptoms
- 4WD switch on but front wheels don't pull
- 4WD light flickers or stays off
- Front end engages only sometimes
Why it happens
The front differential actuator, its connector or the 4WD switch fails, often from water and mud getting into the connector.
How to fix it
- Check the 4WD fuse.
- Unplug the actuator connector, clean it and check for corrosion.
- Test for voltage at the actuator when 4WD is switched on.
- Replace the switch if no voltage, or the actuator if voltage is good but it doesn't move.
Tools and parts
- Multimeter
- Dielectric grease
- Actuator or switch
What the factory service manual covers
Electrical and drive system: 4WD circuit, actuator test, front differential. The full procedure, specs and wiring diagrams are in the factory service manual for your machine.