How to test the radiator fan relay circuit?
TEST 1: Checking The Radiator Fan Relay Power Circuits. Bypassing The Radiator Fan Relay . After confirming that the radiator fan relay is getting juice (TEST 1), the next step is to jumper circuits 1 and 2 with a jumper wire to see if the radiator fan motor comes on.
How to test the Honda Accord radiator fan relay?
TEST 1: Checking The Radiator Fan Relay Power Circuits. TEST 2: Bypassing The Radiator Fan Relay. TEST 3: Bypassing The Radiator Fan Switch. TEST 4: Bench Testing The Radiator Fan Relay. More Honda Accord Test Tutorials.
What does the relay on a cooling fan do?
The typical electric cooling fan circuit includes a temperature sensor, a relay, a control module and the fan motor. The relay is the component that fails most often; so be sure to test the relay as well as its power supply and ground connections.
What happens if the radiator motor relay fails?
If the radiator fan motor relay fails, the most obvious symptom that your Honda Accord will experience is overheating due to radiator fan not coming on. You’ll also see one (or more) of the following symptoms: Your temperature gauge will max out (as you’re driving around). Your Honda will not re-start (once it has overheated).
Why is your radiator fan not running?
The most common causes when a radiator fan is not coming on is broken fuse, bad wirings, bad coolant temperature sensor, bad fan relay, or a faulty radiator fan . Here is a more detailed list of the most common causes of a radiator fan not coming on.
How do you test cooling fan?
The most common way to test Fan Motor 1 (or any cooling fan motor) is to just add 12 Volts to the Gray with Red stripe wire of the fan motor connector with a jumper wire (or a tool like a Power Probe) and then see if the fan comes On or not. If it doesn’t come On, then it’s fried and needs to be replaced.
What is a coolant fan relay?
The cooling fan relay is the relay that controls the engine’s cooling fans. When the correct parameters are met, a temperature switch or the computer will activate the relay, which will allow power to the fans.
What is a radiator cooling fan?
A radiator cooling fan is device that can help regulate engine temperature by pulling air through a radiator. Although a cooling fan can be necessary to prevent an engine from overheating, these fans aren’t responsible for the majority of the cooling performed by radiators. There are also two main types of radiator fans: mechanical and electric.
What kind of fan switch does a radiator use?
Fan Switch, Thermostatic, Radiator Probe, Adjustable 160-240 Degrees F, Kit Electric Fan Controller, Adjustable, Sending Unit, 150-240 degree F Range, Relay, Wiring Harness, Kit Fan Switch, Electric Fan Controller, Adjustable, 150-240 degrees F, Probe-Type Sending Unit, Kit
Why do you need a cooling fan relay?
Average rating from 29 customers who received a Cooling Fan Relay Replacement. Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool. Most cooling fans use electric motors that have a moderate to high current draw, and as a result are commonly controlled using relays.
How do you test a radiator fan relay?
Open your hood and take some time to locate your fusebox, which is mounted in front of the passenger side of the firewall. Remove the top cover to expose your fusebox and relays, check your radiator fan relays and remove them. Inspect for any damage to the pins or the body of the relay, such as bubbling or melting.
What is the function of a radiator fan relay?
The function of the cooling fan relay is to convert a low voltage signal from either the electronic control module (ECM) or a thermostatically controlled sensor. The cooling fan relay takes the low voltage signal and internally switches the relay “on” to allow battery voltage to be supplied to the radiator cooling fan.
Where is fan relay switch located?
Re: Where is the fan relay switch located in a 1996… There is a relay located in the power distribution center. This should be located under the hood, either on the fender wells or near the back of the engine compartment. It will be label power distribution.