Why is the radiator fan not working on my Honda Odyssey?
The Radiator Fan is not working during Normal Engine Run, but when i Turn-ON the AC, the Radiator Fan and Condenser Fan is working synchronously (Start and Stop at the same time). I could not locate the Radiator Fan switch?
Where is the thermo switch on a Honda Odyssey?
Check that the wiring connector is firmly connected to the switch and that the wire itself is in good shape. This thermo-switch is set to close the circuit to ground when the coolant reaches about 200 deg.F. The secondary thermo-switch for the cooling fan is located where the upper radiator hose attaches to the engine.
Why does my car not have a cooling fan?
Watch the vehicle and see if the cooling fan comes on. Driving your car is a good way to get the coolant temp hot. But, you are also forcing cool air through the radiator while you drive, which is cooling the coolant. So, the coolant might not be hot enough to call the cooling fan to turn on.
Why is my radiator fan not working on my Honda Civic?
Figure 1. 1999 Civic under-hood fuse box with location of fan relay (circled in red). Another easy way you can check if the radiator fan switch relay is bad is to swap the radiator fan relay with the condenser fan relay. If the radiator fan begins working, this is an indication that the fan relay is bad.
Why is my Honda radiator fan not working?
If the radiator fan begins working, this is an indication that the fan relay is bad. If the fan switch relay is giving off the appropriate readings and is in working condition, move on to the next step. The thermo switch (also called the cooling fan switch) sends a signal to the cooling fan, so the fan turns on if the coolant gets too hot.
How can I tell if my radiator fan relay is bad?
Another easy way you can check if the radiator fan switch relay is bad is to swap the radiator fan relay with the condenser fan relay. If the radiator fan begins working, this is an indication that the fan relay is bad. If the fan switch relay is giving off the appropriate readings and is in working condition, move on to the next step.
How much does it cost to replace a Honda radiator fan?
Radiator fan testing points. If the radiator fan is in working condition, move on to the next step. The ECT sensor monitors the coolant temperature, and allows the fan to turn on if the coolant is too hot. If this sensor is faulty, a replacement costs around $25 to $45.
Where is the thermostat plug in a Honda Civic?
Figure 2. Location of thermo switch in a Honda Civic’s thermostat housing. The connector has four holes: two are for the electrical wires of the thermo switch plug and the other two are for the plug’s locking mechanism. Make sure to test the electrical holes and not the locking holes.
Do you turn the radiator fan on or off?
The coolant temp has to be hot for the fan to come on. Yes, the fan will come on when you turn the A/C on, so that proves the fan works. Leave the A/C off for the rest of the test. Start your vehicle, and let it idle for 10-15 minutes.
When does the radiator fan close to ground?
This thermo-switch is set to close the circuit to ground when the coolant reaches about 200 deg.F. The secondary thermo-switch for the cooling fan is located where the upper radiator hose attaches to the engine. It does not close the circuit to ground until the coolant reaches about 225 deg. F.
When to turn on the condenser fan on a Honda Odyssey?
The fan on the passenger side should only go on when the coolant temp gets to around 200F + or so OR whenever the AC is ON. The radiator fan shroud also has more braces on it over the fan blades than the condenser fan shroud does.
How does a stuck radiator fan relay work?
That relay can get energized by either the AC ON switch (through the PCM) or the Radiator Fan Switch B (210F) in the lower left area of the diagram OR a stuck Radiator Fan Relay. So, something is either energizing that Radiator Fan Relay or the relay is stuck in the energized position.
When does the radiator fan go on high speed?
The radiator fan shroud also has more braces on it over the fan blades than the condenser fan shroud does. Both fans should be on high speed when the coolant temp gets above 210F, i believe. Does the radiator fan (driver’s side) go on when you turn the AC on?
Is the Rad fan working while the AC is on?
As far as the rad fan, it is not kicking on while the AC is On. only the Condenser fan. only way it will run, i have to hit the back of the fan motor to even get it too work somewhat, i know it isnt rotating at its high speed. so, yeah, im taking that as the motor is not working correctly.
Why are the fans on my car not turning on?
If the fans fail to operate only with the AC, but do come on in normal hot engine conditions, then the fuse and relays are fine – it’s a command problem at the ECU or the AC controller. In addition, I would suspect the computer last.
Why are the fans on my radiator not working?
If the fans never work, it could be the cooling fan ECU (located behind the grill), but check the 50A fuse powering it, and the fan relay first. If the fans fail to operate only with the AC, but do come on in normal hot engine conditions, then the fuse and relays are fine – it’s a command problem at the ECU or the AC controller.
The Radiator Fan is not working during Normal Engine Run, but when i Turn-ON the AC, the Radiator Fan and Condenser Fan is working synchronously (Start and Stop at the same time). I could not locate the Radiator Fan switch?
Check that the wiring connector is firmly connected to the switch and that the wire itself is in good shape. This thermo-switch is set to close the circuit to ground when the coolant reaches about 200 deg.F. The secondary thermo-switch for the cooling fan is located where the upper radiator hose attaches to the engine.
How can I tell if my radiator fan is working?
Here is how to test if the fan is functioning properly: Unplug the radiator fan connector. Run jumper wires between the connector’s two electrical terminals. See Contact Test in Step 1. If the fan does not turn on, you will need to replace it. Figure 3. Radiator fan testing points.
Figure 1. 1999 Civic under-hood fuse box with location of fan relay (circled in red). Another easy way you can check if the radiator fan switch relay is bad is to swap the radiator fan relay with the condenser fan relay. If the radiator fan begins working, this is an indication that the fan relay is bad.
What to do if your Honda AC Fan is not working?
DO this easy check First! If your Honda Fans aren’t working it can be easy repair. I found that both the radiator fan and the AC fan weren’t working. or replace the fans, relays, temperature switch or even the fuses. The temperature switch is an easy repair and it’s even easier to replace. You can get the part from Amazon.com for cheap!
What are the fuses on a Honda Odyssey?
High beam cut relay (Canada) ABS control unit, ABS/TCS control unit. Brake lights.. Cruise control unit, High mount brake light, Horns, Ignition key light, Key interlock solenoid, Driver’s multiplex control unit, PCM, Trailer lighting connector ABS pump motor relay, ABS modulator unit, ABS/TCS control unit, ABS/TCS modulator unit
When does the temp gauge go up or down?
B16A2 DOHC VTEC engine. Currently has 204,000 kilometres (127,000 miles) When the car is on a stop and idling, the temp gauge needle goes up steadily, and when the car is running, the gauge goes back to normal just as fast. When the temp gauge is on hot and I rev the engine, temp gauge needle goes down a little bit.
Why is the temp gauge on Hot in my Honda?
Another possibillity is that the water pump is no longer functioning. Both of these will lead to excessive coolant overflow due to lack of circulation causing hot spots to develop where the coolant is boiling and expanding to push coolant out of the system. This also creates air pockets which can make the temp gauge quickly jump or fall.
Another possibillity is that the water pump is no longer functioning. Both of these will lead to excessive coolant overflow due to lack of circulation causing hot spots to develop where the coolant is boiling and expanding to push coolant out of the system. This also creates air pockets which can make the temp gauge quickly jump or fall.
B16A2 DOHC VTEC engine. Currently has 204,000 kilometres (127,000 miles) When the car is on a stop and idling, the temp gauge needle goes up steadily, and when the car is running, the gauge goes back to normal just as fast. When the temp gauge is on hot and I rev the engine, temp gauge needle goes down a little bit.
Where is the condenser fan on a Honda Odyssey?
The one with only 4 blades is the condenser fan. The one with 5 blades is the radiator fan. On my 2003 the radiator fan is on the driver’s side and the condenser fan is on the passenger side. The fan on the passenger side should only go on when the coolant temp gets to around 200F + or so OR whenever the AC is ON.
When to put the condenser fan on high speed?
The fan on the passenger side should only go on when the coolant temp gets to around 200F + or so OR whenever the AC is ON. The radiator fan shroud also has more braces on it over the fan blades than the condenser fan shroud does. Both fans should be on high speed when the coolant temp gets above 210F, i believe.
When does the Rad fan come on or off?
The rad fan only comes on when the engine gets hot, and it works well to keep the engine temps down. HOWEVER, it is only one speed (a low speed). When I disconnected the coolant temp sensor and started the engine, the fan came on immediately, and at high speed. It came on even though I didn’t have the AC on.
Are there 2 fan speeds and 2 relays?
The 2015 model has only 2 fan speeds and 2 relays (one for each speed). There is no duty cycle or variable control to it. The TIPM is in control of both relays. The low speed relay works when engine temp comes up enough.
What does the thermo switch on a Honda radiator do?
If the fan switch relay is giving off the appropriate readings and is in working condition, move on to the next step. The thermo switch (also called the cooling fan switch) sends a signal to the cooling fan, so the fan turns on if the coolant gets too hot.
What to do if your radiator cooling fan Wont Stop Running?
Remove the lid. Look on the inside of the lid and for the mapping of the fuses and relays with their location. Pull the cooling fan relay out of the box. Replace the cooling fan relay with a new one. A stuck closed relay is the only thing that can operate the cooling fan continuously with the key off.
If the fan switch relay is giving off the appropriate readings and is in working condition, move on to the next step. The thermo switch (also called the cooling fan switch) sends a signal to the cooling fan, so the fan turns on if the coolant gets too hot.
Why does my Honda Accord fan keep running?
If this happens to your Accord, you might have a problem that needs fixing. The common culprits are the temperature sensors (your car has two), which are the fan switch and the fan timer module. This article will discuss the three reasons why your fan might continue to run, even after the car is shut off.
If this happens to your Accord, you might have a problem that needs fixing. The common culprits are the temperature sensors (your car has two), which are the fan switch and the fan timer module. This article will discuss the three reasons why your fan might continue to run, even after the car is shut off.
What kind of fan does a 1996 Honda Accord DX have?
Cooling and condenser fan in a 1996 Honda Accord DX. Step 1 – What’s the condition of the temperature sensor? Your car has two temperature sensors: the ECT sensor and the ambient air temperature sensor.
Is it normal for a Honda Accord cooling system to keep running?
This article applies to the Honda Accord (1990-2002). It’s perfectly normal to have your cooling system fan stay on after you’ve shut off the car, but it shouldn’t stay on longer than ten minutes.
Why does my car fan keep running after I Turn Off the car?
The common culprits are the temperature sensors (your car has two), which are the fan switch and the fan timer module. This article will discuss the three reasons why your fan might continue to run, even after the car is shut off.