Technical Pro BNCF1 Compact Cooling Fan, Silver

now today we'll be talking about cooling fans now specifically on your late model vehicles you tend to have two speeds built into these fans there's a low speed and a high speed and there's a way you can test both of those speeds and if they're not turning on we can test the motor itself the fan motor we can test the harness connectors we can check the relays which happens to live over there in this vehicle so there's a couple of different steps we can take so if you have a problem with your vehicle overheating because the fans aren't turning on this will give you a really good idea on the steps involved the pinpoint where the problem is but right off the bat what you can do is start the vehicle start the air conditioning once you start the air conditioning the low-speed fan should turn on in other words these fans should kick on but it's at the low speed setting so let's first try that