Cooling fans are not turning on?

Okay, so when the car is on, I don't ever see the fans come on when they're supposed to, and right now I have issues with probably the climate control, because the vents don't blow so I don't have any ventilation in the car. But when I turn the car off after it's above temperature, and then turn the key to on, the low-speed fans will run until it cools down and then they turn off. But the high-speed fans never turn on, and I couldn't see any difference from trying the AC but, like I said, the A/C isn't functional.

I was reading somewhere that if the climate control isn't working it can cause the high speed fans to stop working as well, is that true?

I replaced the coolant temperature sensor.

Next I will test the fans themselves with 12 volt just to make sure they run at high speed, but if they're running at low speed then I imagine they should run at high speed as well, from what I can see these fans run parallel on low speed so they each get 6 volts for low speed.

Do you mind sending me a picture of the climate control board and location, I think I need to replace that, unless it's the blower motor, but I think it's probably the climate control board.

Let me know what you think, and I'll post any updates and pics as I progress further with troubleshooting. Thank you

Okay, so when the car is on my dash it's all functional for climate control, like I can see the temperature displayed and I can try to switch the functions for AIR and so that. But there is no response, no moving air, etc.

I'm assuming it's the control board under the glove box. But I'm just not sure exactly what it is, what it looks like, etc.

I found a thread of somebody having the same issues and they replaced a blower control module and that fixed the problem for them.

Is that what I need to be looking at? Is it called an HVAC programmer or blower control module or are those the same thing?

Can you please send me some pictures and diagrams of what to check or test?

Please give me some details as to how to proceed with troubleshooting it.

Okay, so I went ahead and ordered an HVAC Programmer from Swan Auto. It's a used one, but that's fine. I installed it and now I have ventilation inside the car. When I turned the air on I still didn't see anything from the cooling fans in the engine bay.

This car sat for a long time, I imagine freon is low. I was reading that can impact the fans, I'm not sure.

Now I need to go through and double check the relays etc.

I'm mostly concerned about just being able to drive this thing without worrying about engine temps. I don't want to damage the motor.

I have a couple questions at this point.

Can low freon cause the fans to not come on?

Does the engine temperature sensor control the temperature gauge inside the car or is that a different sensor?

I replaced that but am possibly thinking to just double check connections there because I used the cheap wire pinch connectors that came with the electrical connector which I replaced with the sensor because the old one, the wires were very brittle right at the connector.

It's got to be something simple at this point. I'll continue troubleshooting and keep updating you with what I find, in the meantime please answer those couple questions and anything Else you feel might be pertinent for me to check. Thank you

Well, I bought some Freon and was going to check it, but the vents weren't blowing again. I went under the hood and tapped on the fuse box in the front passenger engine bay near the headlight. Then the fans came on, so I was really happy about that. Then I got to thinking maybe inside the cab the blower motor or control module is going out, so I turned on the air, reached under and tapped on the blower motor and it turned on too. So looks like I need to double check all connections in the fuse box, and the relays. And it looks like I'm the near future I may need to replace the blower motor and module. When I get the chance I'll double check power at the blower motor to make sure the voltage increases with the fan speed like it should etc. Then I can replace whatever I need to there as I'm able. Thank you for your help and guidance in the process.