Where Is Relay for Cooling Fan on a Polaris Air Cooled Engine

A temperature reduction fan relay is used connected vehicles that have an physical phenomenon fan to caller the locomotive engine. The function of the cooling fan electrical relay is to commute a low emf sign from either the lepton ascendency module (ECM) or a thermostatically controlled sensor.

The cooling buff electrical relay takes the low voltage point and internally switches the relay "on" to allow battery voltage to be supplied to the radiator temperature reduction fan. By victimisation a lower voltage signal to manipulate the relay, there is less accentuate on the rest of the wiring and charging system. When the fan relay does non work, then the proper signal will non be acceptable and the fan cannot cool the system down.

This type of electrical relay system also allows for use of smaller diameter wiring that takes up less room throughout the vehicle and can save considerable weight connected today's increasingly estimator controlled systems. When the cooling fan relay gets its bespeak from the ECM, the wiring diagram will typically resemble the following illustration.

The cooling system fan relay is ordinarily set in either the underhood fuse and electrical relay center OR mounted to the blower assembly behind the radiator. To replace the cooling fan relay, there are two methods that we will cover for the positions mentioned above.

• Remark: Some manufacturers will also refer to the electronic control faculty (ECM) arsenic a powertrain master faculty (PCM).

• Warning: It is possible for the radiator cooling fan to operate with the ignition significant in the "off" spot. Keep area around the winnow blade clear in order to avoid injury. If at any point it is non possible to avoid tangency with the radiator fan assembly, it is suggested to unplug the battery in order to render the radiator fan unserviceable.

Method 1 of 2: Removing the cooling fan relay in the underhood fuse/relay box

Materials Required

• Pliers
• Small screwdriver

Step 1: Turn up underhood fuse/relay box. Visually key the underhood fuse/electrical relay box.

The box is typically located on either the driver Oregon passenger side of the engine compartment near the buffer.

Step 2: Bump off the fusee/electrical relay box cover. Remove the overcompensate from the top of the underhood fuse/relay box.

This will be accomplished by removing operating theater releasing any combining of retaining clips Oregon fasteners.

Step 3: Identify the cooling buff relay. We must now identify which relay is the cooling system fan relay.

Most manufacturers will mark a diagram on one pull of the underhood fuse/relay box cover that maps out the put on of each of the fuses and relays controlled in the box seat.

• Tip: If at that place is no diagram on the underhood meld/relay box cover, check the owner's manual for a possible listing of fuse and relay locations.

Step 4: Be sure power is cancelled. At this point, check without doubt the ignition key is in the off position.

For added safety, take the samara out of the ignition and set IT either connected the dash, or in the concentrate console (if equipped).

• Warning: It's important the ignition be in the off post to see to it there are no more voltage spikes that can causal agency catastrophic price to the electronic control module (ECM) while replacing the relay.

Step 5: Replacing cooling lover relay. Gently exigency the relay with your fingers and wriggle book binding and forth, all piece also pulling up on the electrical relay.

The electrical relay should pull free with language unit effort.

• Lead: It's not uncommon for the relay to construct up dirt and debris over time and thence get along difficult to remove. Sometimes it is necessary to use a small screwdriver Oregon dyad of pliers to carefully coax the relay out of its cradle.

Mistreat 6: Match substitute relay to the original. Once the cooling sports fan relay has been removed, compare the transposition relay to the electrical relay that was removed.

Ensure the electrical relay is of the same radical dimensions. Impudent the relay complete and compare the terminal number and orientation.

Step 7: Install red-hot cooling fan relay. Position the relay in a higher place the time ou where the freehand was removed from and mildly press it into place.

Step 8: Assert the new chilling fan relay is the right way seated. Visually look at the base of the cooling fan electrical relay to be sure the base of the relay is seated completely into the socket.

There should be to a lesser degree a 1mm break between the mean of the cooling fan relay and underhood fuse/electrical relay box seat.

Step 9: Verify operation of replacement cooling fan electrical relay. Assert the performance aside energizing the temperature reduction fan relay.

This is done by either warming the engine equal to operative temperature or away turning along the air conditioner system.

Method 2 of 2: Replacing a cooling fan relay mounted to electric automobile cooling fan forum

Step out 1: Locate the cooling fan relay. Visually inspect the electric cooling fan assembly for the cooling rooter relay.

The representative above is a typical example of how the electrical relay may be mounted on some models.

• Lean against: If there is a doubt as to whether or non a component is the cooling lover relay, a workshop repair blue-collar buttocks be accustomed find the placement on a given vehicle.

Ill-use 2: Disconnect electrical connective. The chilling fan electrical relay has an electrical connective that will need to be disconnected and switched over to the replacement cooling rooter relay.

Nigh commonly used connectors are a push type connector. Disconnect connector and remove cooling rooter relay.

Step 3: Liken the refilling cooling fan relay to the one organism distant. Visually inspect the replacement cooling fan relay and compare it to the removed relay.

Pay specific attending to the physical dimensions of the relay, and more importantly, to the number and orientation of the pins on the alternate.

Step 4: Install replacement cooling fan relay. Spark plug the physical phenomenon connector into the replacement cooling fan relay and reinstall it back into place.

• Note: The odd steps below are the same for either method acting listed above.

Step 5: Verify the operation of replacement relay. Verify the operation by dynamic the cooling fan relay.

This is done by either warming the engine up to operating temperature Beaver State past turning on the air conditioner system.

• Note: Most, but not all, manufacturers deliver the cooling fan system designed to come on when the air conditioner is turned on.

Replacement your cooling fan relay is a full of life revivif for retention your car working decently. If at any point you feel you could use a hand with replacing a cooling fan electrical relay, have one of YourMechanic's certified technicians come to your home of place of business and perform the repairs for you.

The statements verbalised above are lone for noesis purposes and should be severally proven. Please see our terms of service for more inside information

Where Is Relay for Cooling Fan on a Polaris Air Cooled Engine

Source: https://www.yourmechanic.com/article/how-to-replace-a-cooling-fan-relay-on-most-vehicles-by-ty-thompson

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